# LeadCognition

> LeadCognition is a self-serve GitHub signal intelligence platform for DevTool companies. It monitors GitHub repository activity to identify developers evaluating technology, enriches profiles with LinkedIn and verified email, and generates AI-powered outreach playbooks. Plans start at $0/month with no credit card required.

## Pages

- [LeadCognition — GitHub Signal Intelligence Platform](https://leadcognition.io/): Turn GitHub activity into booked meetings. Discover developer buyers, reveal LinkedIn and email paths, and route qualified outreach to your sales workflow.
- [6sense Alternative for GitHub Intent Signals (2026)](https://leadcognition.io/6sense-alternative/): 6sense tracks account intent, not individual GitHub activity. Compare 6sense with a self-serve GitHub signal layer for DevTool GTM teams.
- [LeadCognition Alternatives — Koala, Common Room & More](https://leadcognition.io/alternatives/): After Koala shut down in 2025, LeadCognition fills the gap. The only self-serve GitHub signal intelligence platform with transparent pricing from $99/mo.
- [Apollo Alternative for Developer Sales](https://leadcognition.io/apollo-alternative/): Apollo.io has 275M+ contacts but no GitHub signal. LeadCognition finds developers evaluating your tool from live GitHub activity, from $99/mo.
- [LeadCognition Blog — Developer Signal Intelligence Resources](https://leadcognition.io/blog/): Guides, playbooks, and research on developer signal intelligence, signal-based selling, GitHub intent data, and B2B data for DevTool companies.
- [6sense Pricing in 2026 — Real Numbers](https://leadcognition.io/blog/6sense-pricing/): 6sense pricing broken down — real tier costs, hidden fees, annual vs monthly, and when it's worth it vs GitHub-native signal intelligence.
- [Apollo.io Pricing in 2026 — Real Numbers](https://leadcognition.io/blog/apollo-pricing/): Apollo.io pricing broken down — seat costs, credit limits, hidden fees, annual vs monthly. When it's worth it vs dev-focused alternatives.
- [Best B2B Data Providers for DevTools: Apollo vs ZoomInfo](https://leadcognition.io/blog/b2b-data-providers/): Compare Apollo, ZoomInfo, Cognism, Clearbit, Common Room, and GitHub-native intent data for DevTool sales teams in 2026.
- [Best Koala Alternatives After Shutdown](https://leadcognition.io/blog/best-koala-alternatives/): Koala shut down in 2025. Here are the best alternatives for developer signal intelligence — feature comparison, pricing, and migration tips.
- [Buyer Intent Data for DevTools: What It Is and Isn't](https://leadcognition.io/blog/buyer-intent-data-devtools/): Buyer intent data for DevTools explained — what counts as intent, what doesn't, and the sources DevTool GTM teams should actually trust in 2026.
- [Buyer Intent Data: The 2026 Guide](https://leadcognition.io/blog/buyer-intent-data/): What buyer intent data is, how it works, and why GitHub activity signals predict DevTool purchase intent 10x better than traditional intent data.
- [LeadCognition Blog — Competitor Analysis](https://leadcognition.io/blog/category/competitors/): Competitor analysis for developer intelligence tools — what happened to Koala, best alternatives, and why traditional B2B data fails DevTool companies.
- [Developer Signal Intelligence Guides](https://leadcognition.io/blog/category/guides/): Practical guides on GitHub intent data, developer signal scoring, and building pipeline from open-source activity for DevTool sales teams.
- [LeadCognition Blog — Pricing Breakdowns](https://leadcognition.io/blog/category/pricing/): Transparent pricing breakdowns for developer intelligence tools — Common Room, 6sense, Apollo, and more. No sales call required to compare.
- [GTM Strategy for DevTool Companies](https://leadcognition.io/blog/category/strategy/): Signal-based selling, how to sell to developers, buyer-intent data, and picking the right B2B data provider — strategy for DevTool GTM teams.
- [Common Room Pricing in 2026 — Real Numbers](https://leadcognition.io/blog/common-room-pricing/): Common Room pricing broken down — tier costs, hidden fees, contract terms, and when to pick GitHub-native signal intelligence instead.
- [Contact Enrichment for Engineers in 2026](https://leadcognition.io/blog/contact-enrichment-technical-roles/): LinkedIn misses most active engineers. See how GitHub-based enrichment finds verified emails and real context for technical roles in 2026.
- [Developer Outreach Playbook for 2026](https://leadcognition.io/blog/developer-outreach-playbook/): How to email developers who actually reply — subject lines, signal-based context, and the templates working in DevTool outbound right now.
- [Developer Signal Intelligence: The Complete Guide (2026)](https://leadcognition.io/blog/developer-signal-intelligence-guide/): The 8 GitHub signals that show a developer is evaluating your tool — and how DevTool GTM teams turn them into qualified pipeline. Full 2026 playbook.
- [The DevTool GTM Stack in 2026](https://leadcognition.io/blog/devtool-gtm-stack/): The modern DevTool go-to-market stack — signal intelligence, enrichment, outbound, dev-focused CRM. Tools that actually work for selling to engineers.
- [GitHub Buying Signals: Stars, Forks, PRs and Issues Ranked](https://leadcognition.io/blog/github-activity-buying-signal/): See which GitHub events predict DevTool purchase intent, from stars and forks to PRs and enterprise issues, with a practical scoring model.
- [From GitHub Stars to Pipeline: 2026 Guide](https://leadcognition.io/blog/github-stars-to-pipeline/): Turn your GitHub stars into a steady sales pipeline — step-by-step playbook on scoring, enriching, and reaching the right devs with the right message.
- [How to Identify High-Intent Developers on GitHub (2026)](https://leadcognition.io/blog/identify-high-intent-developers-github/): A field guide to spotting developers who are ready to buy — before they fill your form. Signal patterns, scoring thresholds, and outreach timing that work.
- [RB2B Alternative for DevTool Companies](https://leadcognition.io/blog/rb2b-alternative/): RB2B deanonymizes website visitors. But most developers evaluate DevTools on GitHub — not your marketing site. Here's what you're missing and how to fix it.
- [How to Sell to Developers in 2026](https://leadcognition.io/blog/sell-to-developers/): Developers hate being sold to. Here's how to sell to engineers without being annoying — using signal-based context instead of spray-and-pray outbound.
- [Signal-Based Selling for DevTools (2026)](https://leadcognition.io/blog/signal-based-selling/): Signal-based selling replaces cold outbound with buyer-signal context. The 2026 playbook for DevTool GTM teams using GitHub as a pipeline source.
- [How to Spot a Ready-to-Switch Developer on GitHub](https://leadcognition.io/blog/spot-ready-to-switch-developer/): Five GitHub patterns that flag a developer about to switch away from a competing DevTool, plus the outreach rules that convert switch-intent into pipeline.
- [From Star to Signed: GitHub Activity to Pipeline](https://leadcognition.io/blog/star-to-signed-framework/): A five-stage framework for converting GitHub stars, forks, and PRs into signed DevTool deals. Repeatable, auditable, built for sales teams.
- [Stars vs. PRs vs. Commits: Which Signal Predicts Pipeline?](https://leadcognition.io/blog/stars-vs-prs-vs-commits/): Which GitHub signal actually predicts B2B pipeline — stars, pull requests, or commits? A practical weighting framework for DevTool GTM teams.
- [Technical Recruiting 2026: Resumes Lie, Commits Don't](https://leadcognition.io/blog/technical-recruiting-2026/): How technical recruiters source, vet, and reach engineers in 2026 — why resumes degraded as a signal and why public commits are the best substitute.
- [What Happened to Koala? (2026 Analysis)](https://leadcognition.io/blog/what-happened-to-koala/): Koala shut down in 2025. Here's why — plus the best alternatives for developer signal intelligence and how to migrate your GTM workflows.
- [What Is GitHub Signal Intelligence? Intent Data Explained](https://leadcognition.io/blog/what-is-github-signal-intelligence/): GitHub signal intelligence uses stars, forks, PRs, issues, and commits to identify developers and companies evaluating DevTools.
- [Why B2B Data Fails DevTool Companies (2026)](https://leadcognition.io/blog/why-b2b-data-fails-devtools/): Traditional B2B data — ZoomInfo, Apollo, Cognism — misses the signal that matters for DevTools. Here's why GitHub activity wins for developer products.
- [Clay Alternative for DevTool Teams — LeadCognition (2026)](https://leadcognition.io/clay-alternative/): Clay orchestrates enrichment across 100+ providers but never tells you who to target. LeadCognition surfaces GitHub-native buying signals, free tier included.
- [Clearbit Alternative for DevTool Teams](https://leadcognition.io/clearbit-alternative/): Clearbit (now HubSpot Breeze) is static firmographics with HubSpot lock-in. LeadCognition adds real GitHub intent — no HubSpot, free tier.
- [Cognism Alternative for Developer Sales](https://leadcognition.io/cognism-alternative/): Cognism sells phone-verified B2B contacts. LeadCognition tracks GitHub intent, so DevTool teams reach devs already using your stack.
- [Common Room Alternative for DevTools](https://leadcognition.io/common-room-alternative/): Common Room is community-platform heavy. LeadCognition is GitHub-first signal intelligence — lower lift, faster pipeline, $99/mo self-serve.
- [Apollo.io vs ZoomInfo — Full Comparison (2026)](https://leadcognition.io/compare/apollo-vs-zoominfo/): Apollo.io vs ZoomInfo: pricing, database size, sequencing, integrations, and who each is best for in 2026. Plus a GitHub-native option for DevTool teams.
- [Cognism vs ZoomInfo — 2026 Comparison](https://leadcognition.io/compare/cognism-vs-zoominfo/): Side-by-side: Cognism vs ZoomInfo on pricing, data coverage, compliance, and developer fit. Plus a GitHub-native alternative from $99/mo.
- [Common Room vs Reo.dev — Full Comparison (2026)](https://leadcognition.io/compare/common-room-vs-reo-dev/): Common Room vs Reo.dev: pricing, signals, AI features, and who each is best for in 2026. Plus a self-serve third option starting at $99/mo.
- [Hunter vs RocketReach — 2026 Comparison](https://leadcognition.io/compare/hunter-vs-rocketreach/): Hunter.io vs RocketReach: email accuracy, credits, and dev-team fit compared. See where GitHub-native signal intelligence beats both.
- [Lusha vs Apollo — 2026 Comparison](https://leadcognition.io/compare/lusha-vs-apollo/): Lusha vs Apollo: pricing, data depth, and why neither fits DevTool GTM. See the GitHub-native alternative for developer-led sales teams.
- [Demand Signal Repositories — GitHub Buying Intent (2026)](https://leadcognition.io/demand-signal-repositories/): Turn GitHub repos into demand signals. See which repos your buyers push, fork, and file issues on — then reach the developers behind the activity.
- [Developer Buying Signals on GitHub (2026)](https://leadcognition.io/developer-buying-signals/): Identify real purchase intent from GitHub activity — stars, forks, issues, PRs. Score and act on developer buying signals for your DevTool in 2026.
- [Developer Outreach That Actually Works](https://leadcognition.io/developer-outreach/): Developers ignore cold spam. Signal-based developer outreach wins — email engineers only when they show GitHub buying intent, with real context.
- [Developer Signal Intelligence for DevTools](https://leadcognition.io/developer-signal-intelligence/): Developer signal intelligence turns GitHub activity into pipeline — find engineers evaluating your category before they fill a form or take a demo.
- [LeadCognition FAQ — 36 Answers on GitHub Signal Intelligence](https://leadcognition.io/faq/): LeadCognition FAQ: 36 answers on GitHub signal intelligence, developer buying signals, pricing, data sources, and how it compares to Apollo and ZoomInfo.
- [GitHub De-Anonymization API — Handle to Verified LinkedIn](https://leadcognition.io/github-de-anonymization/): De-anonymize GitHub usernames into verified LinkedIn identities. Multi-stage validation engineers out same-name collisions. 2 credits, charged on match.
- [GitHub Developer Dossier API — Full Profile from a Handle](https://leadcognition.io/github-developer-dossier/): Turn any GitHub handle into a full developer profile: influence tier, activity cadence, tech stack, top starred repos, role signal. 1 credit, no LinkedIn.
- [GitHub Identity Resolution — How Developer Matching Works](https://leadcognition.io/github-identity-resolution/): How GitHub identity resolution works: signal extraction, candidate resolution, identity confirmation, and the confidence gate behind 90%+ precision.
- [GitHub Intent Data for DevTool Sales](https://leadcognition.io/github-intent-data/): GitHub intent data beats website tracking 10x for DevTool buyers. See which devs starred, forked, or PR'd your space and turn activity into pipeline.
- [GitHub Profile Enrichment for CRM and Outbound](https://leadcognition.io/github-profile-enrichment/): Push enriched developer contacts into your CRM and sequences. GitHub handle in, LinkedIn, employer and title out, scored against your ICP before outreach.
- [GitHub to LinkedIn — Free Username Lookup Tool](https://leadcognition.io/github-to-linkedin/): Look up the LinkedIn profile behind any GitHub username. Free single lookup, no signup. 90%+ precision on returned matches, 2 credits at scale.
- [Glossary — GitHub Signal Intelligence Terminology](https://leadcognition.io/glossary/): Definitions for the core terms in GitHub signal intelligence, developer-led sales, and technical recruiting. Cross-linked to the blog and tools.
- [What is Developer-Led Sales?](https://leadcognition.io/glossary/developer-led-sales/): Developer-led sales is a B2B motion where individual engineers self-serve a product, then expansion and enterprise sales follow their usage data.
- [What is a Developer Signal Score?](https://leadcognition.io/glossary/developer-signal-score/): A Developer Signal Score ranks engineers by how actively they evaluate a technology on GitHub — weighted by recency, event type, and relevance.
- [What is GitHub Activity Tracking?](https://leadcognition.io/glossary/github-activity-tracking/): GitHub activity tracking is the continuous monitoring of public GitHub events — stars, forks, PRs, issues, commits — for sales, recruiting, or research use.
- [What is Open-Source Intelligence for Sales? | Glossary](https://leadcognition.io/glossary/open-source-intelligence-sales/): Open-source intelligence for sales applies OSINT methods to B2B — monitoring public GitHub, docs, and community channels to surface live buying intent.
- [What is Repo Intent Score?](https://leadcognition.io/glossary/repo-intent-score/): Repo Intent Score ranks GitHub repositories by aggregate developer evaluation intent — pull requests, issues, forks, and commits from real engineers.
- [What is a Sales Intelligence Platform?](https://leadcognition.io/glossary/sales-intelligence-platform/): A sales intelligence platform aggregates contact, firmographic, and intent data to help B2B sales teams prioritize accounts and reach the right buyers.
- [What is Signal Strength Score?](https://leadcognition.io/glossary/signal-strength-score/): Signal Strength Score rates the quality of an individual GitHub event — balancing volume, recency, event type, and topic fit into one comparable number.
- [What are Technical Recruiting Signals?](https://leadcognition.io/glossary/technical-recruiting-signals/): Technical recruiting signals are observable developer activities — GitHub contributions, talks, OSS maintenance — that identify qualified engineers.
- [Hunter.io Alternative for DevTool Sales](https://leadcognition.io/hunter-io-alternative/): Hunter only finds emails. LeadCognition finds the signal first — which dev starred, forked, or PR'd your space — then enriches with email + LinkedIn.
- [Instantly Alternative for DevTool Teams (2026)](https://leadcognition.io/instantly-alternative/): Instantly rotates inboxes to send cold email at scale. LeadCognition surfaces which developers are worth emailing in the first place — free tier.
- [Koala Alternative — Self-Serve GitHub Signal Intelligence](https://leadcognition.io/koala-alternative/): Koala shut down in September 2025. LeadCognition is the self-serve alternative — GitHub signal intelligence, transparent pricing, free tier. Start in minutes.
- [Leadfeeder Alternative for DevTool Teams (2026)](https://leadcognition.io/leadfeeder-alternative/): Leadfeeder (now Dealfront) reveals anonymous website visitors. LeadCognition surfaces developer buying signals earlier — on GitHub, free tier.
- [Lemlist Alternative for DevTool Teams — LeadCognition (2026)](https://leadcognition.io/lemlist-alternative/): Lemlist personalizes cold email at scale. LeadCognition picks the right developers to email in the first place — free tier, GitHub-signal native.
- [Lusha Alternative for Developer Pipeline](https://leadcognition.io/lusha-alternative/): Lusha is a contact database. LeadCognition is GitHub-native intent — reach devs at the exact moment they show buying signal, self-serve from $99/mo.
- [LeadCognition MCP — Developer Intent for Clay & Claude](https://leadcognition.io/mcp/): Add GitHub developer-intent signals to your GTM stack. 50 free trial credits. Works with Clay, Claude Desktop, Cursor, and any MCP-compatible client.
- [OnFire Alternative for DevTool Sales](https://leadcognition.io/onfire-alternative/): OnFire focuses on website visitors. LeadCognition captures GitHub signals — stars, forks, PRs — that matter more than page views for DevTool buyers.
- [Open Source Leads — OSS to Revenue](https://leadcognition.io/open-source-leads/): Turn open-source users into paying customers. Monitor GitHub signals, enrich the right accounts, and convert OSS engagement to DevTool pipeline.
- [Outreach.io Alternative for DevTool Teams (2026)](https://leadcognition.io/outreach-alternative/): Outreach.io is the enterprise sales engagement platform. LeadCognition is the signal layer above it — free tier, GitHub-native developer targeting.
- [PhantomBuster Alternative — No LinkedIn Ban Risk](https://leadcognition.io/phantombuster-alternative/): PhantomBuster scrapes LinkedIn and risks your account. LeadCognition uses public GitHub signals to find developers evaluating your tool — from $99/mo.
- [Pocus Alternative — GitHub Signal Intelligence at $99/mo](https://leadcognition.io/pocus-alternative/): Pocus alternative: LeadCognition captures GitHub signals before developers sign up. Transparent pricing from $99/mo. No demo required.
- [Privacy Policy](https://leadcognition.io/privacy/): LeadCognition privacy policy for GitHub signal intelligence, MCP/API access, enrichment, integrations, and opt-out requests.
- [Developer Data Opt-Out](https://leadcognition.io/privacy/opt-out/): Request suppression or correction of public developer profile data in LeadCognition.
- [Release Notes & Changelog](https://leadcognition.io/release-notes/): LeadCognition product releases, features shipped, and full version history — every tagged release of GitHub signal intelligence for DevTools.
- [Reo.dev Alternative — Self-Serve, From $99/mo (Free Tier)](https://leadcognition.io/reo-dev-alternative/): The self-serve Reo.dev alternative for DevTool teams: GitHub signal intelligence from $99/mo, a free tier, live signals in 2 minutes — no sales call.
- [RocketReach Alternative for DevTools](https://leadcognition.io/rocketreach-alternative/): RocketReach is a static contact lookup. LeadCognition pairs GitHub signal intent with verified email + LinkedIn — pipeline, not just contacts.
- [Salesloft Alternative for DevTool Teams (2026)](https://leadcognition.io/salesloft-alternative/): Salesloft is the enterprise sales engagement incumbent. LeadCognition fills the signal-targeting gap above it — free tier, DevTool-native.
- [Scarf Alternative — Developer Identity + Outreach](https://leadcognition.io/scarf-alternative/): Scarf shows which companies download your package. LeadCognition shows which developers are evaluating your tool on GitHub — with email and LinkedIn.
- [Seamless.AI Alternative for DevTool Teams (2026)](https://leadcognition.io/seamless-ai-alternative/): Seamless.AI serves B2B contact data on a per-seat credit model. LeadCognition focuses on GitHub-native signal — free tier, better DevTool fit.
- [Smartlead Alternative for DevTool Teams (2026)](https://leadcognition.io/smartlead-alternative/): Smartlead sends cold email at massive inbox scale. LeadCognition identifies which developers are signal-qualified to email — free tier to start.
- [Snov.io Alternative for DevTool Teams — LeadCognition (2026)](https://leadcognition.io/snov-alternative/): Snov.io finds emails and runs drip campaigns. LeadCognition finds the developers worth emailing first — free tier, GitHub-signal native.
- [Technical Recruiting via GitHub Activity](https://leadcognition.io/technical-recruiting-tool/): Skip resume screening. Find engineers with proven skills in specific technologies via GitHub activity, then reach them with verified contact data.
- [Terms of Service](https://leadcognition.io/terms/): LeadCognition terms for the web app, MCP server, REST API, integrations, and partner workflows.
- [Free DevTool GTM Tools](https://leadcognition.io/tools/): Free GitHub signal tools: repo intent score, ecosystem snapshot, email finder, tech-stack lookup. Built for DevTool founders and sales teams.
- [Company Tech Stack Lookup — Free](https://leadcognition.io/tools/company-tech-stack/): Free tool to check any company's tech stack — frontend, backend, data, DevOps — sourced from public repos, job posts, and GitHub activity.
- [Technology Comparisons & Market Intelligence · LeadCognition](https://leadcognition.io/tools/compare/): Browse developer-tool comparisons, track weekly market momentum, and run repo-vs-repo checks with live evaluation context from LeadCognition.
- [Bun vs Node.js — 2026 Comparison](https://leadcognition.io/tools/compare/bun-vs-node/): Bun vs Node.js: performance benchmarks, ecosystem depth, Vercel/serverless support, and which runtime DevTool buyers actually pick in 2026.
- [Deno vs Node.js — 2026 Comparison](https://leadcognition.io/tools/compare/deno-vs-node/): Deno vs Node.js: TypeScript-first vs massive ecosystem. Real GitHub adoption data, feature parity, and which runtime fits your stack.
- [Jest vs Vitest — 2026 Comparison](https://leadcognition.io/tools/compare/jest-vs-vitest/): Jest vs Vitest: speed, Vite integration, migration path, and real adoption trends on GitHub. Pick the right test runner for your stack.
- [Kubernetes vs Docker — 2026 Comparison](https://leadcognition.io/tools/compare/kubernetes-vs-docker/): Kubernetes vs Docker: orchestration vs containers, when each wins, real enterprise adoption data, and migration paths for DevOps teams.
- [LangChain vs LlamaIndex — 2026](https://leadcognition.io/tools/compare/langchain-vs-llamaindex/): LangChain vs LlamaIndex: which AI framework fits RAG, agents, and production workloads. Real GitHub signal data and adoption trends.
- [NestJS vs Express — 2026 Comparison](https://leadcognition.io/tools/compare/nestjs-vs-express/): NestJS vs Express: opinionated TypeScript framework vs minimalist router. Feature depth, adoption, and the right fit for your backend.
- [Next.js vs Remix — 2026 Comparison](https://leadcognition.io/tools/compare/nextjs-vs-remix/): Next.js vs Remix: routing, data loading, SSR strategy, deploy targets. Real GitHub adoption and which React meta-framework to pick.
- [Playwright vs Cypress — 2026 Comparison](https://leadcognition.io/tools/compare/playwright-vs-cypress/): Playwright vs Cypress: cross-browser support, speed, flake rate, dev experience. Real GitHub adoption and the right E2E pick in 2026.
- [Postgres vs MySQL — 2026 Comparison](https://leadcognition.io/tools/compare/postgres-vs-mysql/): Postgres vs MySQL: features, replication, JSON support, JSONB, and real-world enterprise adoption. Pick the right OLTP database.
- [Prisma vs Drizzle — 2026 ORM Comparison](https://leadcognition.io/tools/compare/prisma-vs-drizzle/): Prisma vs Drizzle: type safety, runtime overhead, SQL control, edge support. Real GitHub adoption and which TypeScript ORM to pick.
- [Redis vs Memcached — 2026 Comparison](https://leadcognition.io/tools/compare/redis-vs-memcached/): Redis vs Memcached: data structures, persistence, clustering, and when simple-cache still wins. GitHub adoption and the right pick.
- [shadcn/ui vs MUI — 2026 Comparison](https://leadcognition.io/tools/compare/shadcn-vs-mui/): shadcn/ui vs MUI: copy-paste components vs npm-installed library. Customization, bundle size, and the right React UI fit for your app.
- [Supabase vs Firebase — 2026 Comparison](https://leadcognition.io/tools/compare/supabase-vs-firebase/): Supabase vs Firebase: Postgres vs NoSQL, self-host vs managed, pricing, auth. Real GitHub adoption and which BaaS to pick in 2026.
- [Svelte vs SolidJS — 2026 Comparison](https://leadcognition.io/tools/compare/svelte-vs-solid/): Svelte vs SolidJS: compile-time vs fine-grained reactivity, DX, bundle size, ecosystem. GitHub adoption and the right pick for 2026.
- [Tailwind vs Bootstrap — 2026 Comparison](https://leadcognition.io/tools/compare/tailwind-vs-bootstrap/): Tailwind vs Bootstrap: utility-first vs component framework. Bundle size, DX, customization, and adoption trends on GitHub in 2026.
- [TanStack vs React Router — 2026](https://leadcognition.io/tools/compare/tanstack-vs-react-router/): TanStack Router vs React Router: type safety, data loading, search params. Which modern React router wins in 2026 — real adoption data.
- [tRPC vs GraphQL — 2026 Comparison](https://leadcognition.io/tools/compare/trpc-vs-graphql/): tRPC vs GraphQL: end-to-end TypeScript vs query language. Schema evolution, tooling, and GitHub adoption — which API fits your stack.
- [Vite vs Webpack — 2026 Comparison](https://leadcognition.io/tools/compare/vite-vs-webpack/): Vite vs Webpack: ESM-first dev server vs mature bundler. Cold-start speed, plugins, and which build tool wins on GitHub in 2026.
- [Vue vs React — 2026 Framework Comparison](https://leadcognition.io/tools/compare/vue-vs-react/): Vue vs React: template vs JSX, reactivity model, ecosystem depth, hiring market. Real GitHub adoption and the right pick in 2026.
- [Zod vs Yup — 2026 Validation Comparison](https://leadcognition.io/tools/compare/zod-vs-yup/): Zod vs Yup: type inference, bundle size, async validation, DX. Real GitHub adoption and which TypeScript schema library to pick.
- [Developer Signal Score — Free Tool](https://leadcognition.io/tools/developer-signal-score/): Score any GitHub user for buying intent — stars, forks, PR activity, org context. Free tool that surfaces warm devs for DevTool sales.
- [Ecosystem Snapshot — AI Category Lookup](https://leadcognition.io/tools/ecosystem-snapshot/): Instantly categorize any company's GitHub ecosystem — AI/ML, DevOps, data, infra. Free tool powered by LeadCognition signal intelligence.
- [GitHub Developer Dossier — Free Profile Lookup](https://leadcognition.io/tools/github-developer-dossier/): Free GitHub profile lookup: influence tier, activity cadence, tech stack, recently starred repos and social graph for any username. No signup.
- [GitHub Email Finder: Any Dev's Email, Free](https://leadcognition.io/tools/github-email-finder/): Find any GitHub user's real work email free. We read commit history, not just profiles (only 15% are public), so you reach the 85% others miss.
- [Free GitHub to LinkedIn Finder — Find Any Dev's Profile](https://leadcognition.io/tools/github-to-linkedin/): Enter a GitHub username and see their public profile instantly. LeadCognition resolves the matching LinkedIn identity with 90%+ precision.
- [Repo Intent Score — Free GitHub Tool](https://leadcognition.io/tools/repo-intent-score/): Score any GitHub repo for buying intent in 30 seconds — stars, forks, PRs, commits, issues — plus top contributing devs for outreach.
- [Repo vs Repo — Free Comparison Tool](https://leadcognition.io/tools/repo-vs-repo/): Compare any two GitHub repos side by side — stars, commits, contributors, velocity, and buying-intent signal. Free, no signup required.
- [LeadCognition vs Common Room & Reo.dev](https://leadcognition.io/vs/): Side-by-side: LeadCognition vs Common Room, Reo.dev, and other developer signal tools. Transparent comparisons on pricing, coverage, and fit.
- [Apollo vs Cognism (2026 Comparison)](https://leadcognition.io/vs/apollo-vs-cognism/): Apollo vs Cognism: self-serve US-focused vs GDPR-compliant European data. Apollo $0-$149/user/mo; Cognism enterprise quote, phone-verified EU mobiles.
- [Clearbit vs Apollo (2026 Comparison)](https://leadcognition.io/vs/clearbit-vs-apollo/): Clearbit vs Apollo: pricing, data coverage, ICP, integrations. Clearbit is now HubSpot Breeze (enterprise, bundled); Apollo is self-serve at $0-$149/user/mo.
- [Clearbit vs ZoomInfo (2026 Comparison)](https://leadcognition.io/vs/clearbit-vs-zoominfo/): Clearbit (now HubSpot Breeze Intelligence) vs ZoomInfo: pricing, coverage, and who wins for mid-market vs enterprise B2B data.
- [LeadCognition vs Common Room (2026) — Feature Comparison](https://leadcognition.io/vs/common-room/): Neutral, side-by-side LeadCognition vs Common Room comparison: pricing, features, signal coverage, and ideal use cases for each team type.
- [Hunter vs Apollo (2026 Comparison)](https://leadcognition.io/vs/hunter-vs-apollo/): Hunter.io vs Apollo: when to pick the lean email-finder vs the all-in-one sales platform. Hunter from $0-$159/mo, Apollo $0-$149/user/mo.
- [Koala vs Common Room (2026 Comparison)](https://leadcognition.io/vs/koala-vs-common-room/): Koala vs Common Room: PLG signal vs community signal. Koala shut down end of 2025; Common Room is the PLG-intel successor for most teams.
- [LeadCognition vs Reo.dev (2026 Comparison)](https://leadcognition.io/vs/reo-dev/): LeadCognition vs Reo.dev: pricing, features, signal coverage compared. LC starts at $99/mo; Reo.dev ~$500+/user/mo with no self-serve option.
- [RocketReach vs Apollo (2026 Comparison)](https://leadcognition.io/vs/rocketreach-vs-apollo/): RocketReach vs Apollo: recruiter-focused contact finder vs all-in-one sales platform. RocketReach $53-$249/mo, Apollo $0-$149/user/mo.
- [ZoomInfo vs Lusha (2026 Comparison)](https://leadcognition.io/vs/zoominfo-vs-lusha/): ZoomInfo vs Lusha: price, coverage, and who wins for enterprise vs SMB. ZoomInfo from $15k/yr, Lusha free tier + from $29/user/mo.
- [Companies Using Popular Developer Tools](https://leadcognition.io/who-uses/): Browse companies and developers using popular developer tools. See adoption stats, notable users, and find developers through GitHub signals.
- [Companies Using Ansible — Developer Signals](https://leadcognition.io/who-uses/ansible/): See which companies and developers are actively using Ansible. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Argo CD — Developer Signals](https://leadcognition.io/who-uses/argocd/): See which companies and developers are actively using Argo CD. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Astro — Developer Signals](https://leadcognition.io/who-uses/astro/): See which companies and developers are actively using Astro. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using ClickHouse — Developer Signals](https://leadcognition.io/who-uses/clickhouse/): See which companies and developers are actively using ClickHouse. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Dagger — Developer Signals](https://leadcognition.io/who-uses/dagger/): See which companies and developers are actively using Dagger. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Docker — Developer Signals](https://leadcognition.io/who-uses/docker/): See which companies and developers are actively using Docker. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using DuckDB — Developer Signals](https://leadcognition.io/who-uses/duckdb/): See which companies and developers are actively using DuckDB. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Elasticsearch — Developer Signals](https://leadcognition.io/who-uses/elasticsearch/): See which companies and developers are actively using Elasticsearch. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using FastAPI — Developer Signals](https://leadcognition.io/who-uses/fastapi/): See which companies and developers are actively using FastAPI. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Flux — Developer Signals](https://leadcognition.io/who-uses/flux/): See which companies and developers are actively using Flux. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Grafana — Developer Signals](https://leadcognition.io/who-uses/grafana/): See which companies and developers are actively using Grafana. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Hono — Developer Signals](https://leadcognition.io/who-uses/hono/): See which companies and developers are actively using Hono. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Jaeger — Developer Signals](https://leadcognition.io/who-uses/jaeger/): See which companies and developers are actively using Jaeger. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Who Uses Kubernetes? 500+ Companies and Their Engineers](https://leadcognition.io/who-uses/kubernetes/): Find companies running Kubernetes in 2026 — Google, Spotify, Airbnb, CERN, and 500+ more. See adoption stats and reach the engineers behind the clusters.
- [Companies Using LangChain — Developer Signals](https://leadcognition.io/who-uses/langchain/): See which companies and developers are actively using LangChain. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using LlamaIndex — Developer Signals](https://leadcognition.io/who-uses/llamaindex/): See which companies and developers are actively using LlamaIndex. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Loki — Developer Signals](https://leadcognition.io/who-uses/loki/): See which companies and developers are actively using Loki. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Next.js — Developer Signals](https://leadcognition.io/who-uses/nextjs/): See which companies and developers are actively using Next.js. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using OpenTelemetry — Developer Signals](https://leadcognition.io/who-uses/opentelemetry/): See which companies and developers are actively using OpenTelemetry. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using OpenTofu — Developer Signals](https://leadcognition.io/who-uses/opentofu/): See which companies and developers are actively using OpenTofu. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Who Uses PostgreSQL? Companies & Developers](https://leadcognition.io/who-uses/postgres/): Who uses PostgreSQL? Apple, Instagram, Reddit, Stripe and most modern SaaS. See the companies and developers on Postgres, and how to reach them.
- [Companies Using Prometheus — Developer Signals](https://leadcognition.io/who-uses/prometheus/): See which companies and developers are actively using Prometheus. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Pulumi — Developer Signals](https://leadcognition.io/who-uses/pulumi/): See which companies and developers are actively using Pulumi. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using React — Developer Signals](https://leadcognition.io/who-uses/react/): See which companies and developers are actively using React. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Remix — Developer Signals](https://leadcognition.io/who-uses/remix/): See which companies and developers are actively using Remix. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Stripe Node SDK](https://leadcognition.io/who-uses/stripe-node/): Companies and developers actively using the Stripe Node SDK. GitHub adoption stats, notable adopters, and how to reach them via signal intelligence.
- [Companies Using Supabase — Developer Signals](https://leadcognition.io/who-uses/supabase/): See which companies and developers are actively using Supabase. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Svelte in 2026 — Adopters & Signals](https://leadcognition.io/who-uses/svelte/): Which companies use Svelte? Apple, Spotify, The New York Times, Brave, 1Password and more. See adoption stats, notable users, and how to reach their teams.
- [Companies Using Terraform — Developer Signals](https://leadcognition.io/who-uses/terraform/): See which companies and developers are actively using Terraform. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Vercel AI SDK — Developer Signals](https://leadcognition.io/who-uses/vercel-ai-sdk/): See which companies and developers are actively using Vercel AI SDK. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [ZoomInfo Alternative for DevTool Sales](https://leadcognition.io/zoominfo-alternative/): ZoomInfo is enterprise-priced generic data. LeadCognition is GitHub-native signal intelligence for DevTools — self-serve from $99/mo.
- [$1,000 of LeadCognition, free for YC founders.](https://leadcognition.io/yc): 3 months of LeadCognition Business + $1,000 in credits, free for YC founders. Verified emails and LinkedIn profiles for developers evaluating your tool.

## Key Facts

- Launched: 2024
- Pricing: Free ($0, 50 free trial credits — LinkedIn + name + company only; email + phone require Pro; weekly digest), Pro ($99/mo or $79/mo annual, 500 credits), Business ($299/mo or $239/mo annual, 2,000 credits), Scale ($799/mo or $639/mo annual, 8,000 credits), Enterprise (from $1,999/mo, custom). Subscription-gated top-up packs: 500/$79, 2,500/$299, 10,000/$899, 25,000/$1,499.
- GitHub signal types tracked: Stars, forks, pull requests, commits, issues, code reviews, release downloads, watches
- Enrichment: LinkedIn URL, verified work email, job title, company, location
- Target users: DevTool companies, SDRs, technical recruiters, founders
- Key differentiator: Only self-serve, transparently-priced GitHub signal intelligence platform (as of 2026)
- Competitors: Koala (shut down Sept 2025), Common Room ($12K+/yr), Reo.dev ($500+/user/mo), Clearbit (acquired by HubSpot), Apollo.io ($49/user/mo), ZoomInfo ($15K+/yr), 6sense ($50K+/yr)

## Optional

- [llms-full.txt](https://leadcognition.io/llms-full.txt): Detailed product documentation