head to head · open source
PostHog vs openanalytics
PostHog has 40,600 GitHub stars, 3,579 forks, 5,637 open issues and last shipped yesterday. openanalytics has 643 stars, 54 forks, 1 open issues and last shipped 12 days ago. PostHog leads on adoption by 6,214% (40,600 vs 643 stars). PostHog is written in Python under a custom or non-standard licence; openanalytics is written in TypeScript under AGPL-3.0. PostHog has attracted 9% as many forks as stars, openanalytics 8%. PostHog was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (analytics), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| PostHog | openanalytics | |
|---|---|---|
| GitHub stars | ★ 41K | ★ 643 |
| License | Custom / other | AGPL-3.0 |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-10-22 |
| Forks | ⑂ 3.6K | ⑂ 54 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick PostHog if
- You weight community size — 41K stars and counting
- You want the Custom / other license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick openanalytics if
- You want the openanalytics feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and openanalytics fits your workflow better
About PostHog
Docs Community Roadmap Why PostHog? Changelog Bug reports PostHog is the open source platform for building self driving products PostHog provides every tool you need to build a successful product, and captures all the context agents need to proactively diagnose problems, uncover opportunities, and ship fixes: Self driving mode: Turn signals in your product data (errors, rage clicks, failed queries, and more) into researched reports and pull requests you review and merge. Product analytics: Autocapture or manually instrument event based analytics to understand user behavior and analyze data with visualization or…
read the full PostHog overview →
About openanalytics
OpenAnalytics Open source, privacy first web analytics. One lightweight tracker script, no cookies, no cross site profiles, aggregate only reads — self hostable on your own hardware under AGPL 3.0. A hosted instance runs at getopen.so , operated by the authors: the same code, someone else's servers. ▶ Watch the dashboard in motion , a tour of these same screens on YouTube. What is in this repository The product, as one pnpm monorepo: Stores: Postgres (control plane), ClickHouse (events and rollups), Valkey ×2 (one durable event queue, one losable realtime cache). What it does, in one list: page views, custom and…
read the full openanalytics overview →
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Frequently asked questions
Is PostHog or openanalytics more popular?
PostHog has 40,600 GitHub stars and openanalytics has 643. PostHog has the larger community by that measure.
Are PostHog and openanalytics free?
Both are open source. PostHog has no licence declared in this registry, and openanalytics is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between PostHog and openanalytics?
PostHog is written in Python and openanalytics in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, PostHog or openanalytics?
Choose PostHog if you want the larger community (40,600 stars) or its Custom / other licence terms. Choose openanalytics if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.