head to head · open source
cap vs keploy
cap has 24,271 GitHub stars, 2,234 forks, 339 open issues and last shipped yesterday. keploy has 19,103 stars, 2,446 forks, 725 open issues and last shipped yesterday. cap leads on adoption by 27% (24,271 vs 19,103 stars). cap is written in Rust under a custom or non-standard licence; keploy is written in Go under Apache-2.0. cap has attracted 9% as many forks as stars, keploy 13%. keploy was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| cap | keploy | |
|---|---|---|
| GitHub stars | ★ 24K | ★ 19K |
| License | Custom / other | Apache-2.0 |
| Written in | Rust | Go |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 2.2K | ⑂ 2.4K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick cap if
- You weight community size — 24K stars and counting
- You want the Custom / other license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick keploy if
- You want the keploy feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and keploy fits your workflow better
About cap
Cap Beautiful, shareable screen recordings. Open source, fast, and built for teams that want to own their data. Website Download Docs Pricing Discord Cap is the open source alternative to Loom. It gives you fast screen recording, polished local editing, instant share links, comments, transcripts, analytics, team workspaces, custom domains, custom S3 storage, and full self hosting when you need complete control. Use Cap for product demos, bug reports, onboarding, tutorials, design reviews, engineering walkthroughs, async standups, client updates, and any moment where showing the work is faster than scheduling…
About keploy
⚡️ API tests faster than unit tests, from user traffic ⚡️ 🌟 The must have tool for developers in the AI Gen era for 90% test coverage 🌟 Keploy is a developer‑centric API and integration testing tool that auto‑generates tests and data‑mocks faster than unit tests. It records API calls, database queries, and streaming events — then replays them as tests. Under the hood, Keploy uses eBPF to capture traffic at the network layer, but for you it’s completely code‑less and language‑agnostic . 🐰 Fun fact: Keploy uses itself for testing! Check out our swanky coverage badge: Key Highlights 🎯 No code changes Just run…
read the full keploy overview →
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Frequently asked questions
Is cap or keploy more popular?
cap has 24,271 GitHub stars and keploy has 19,103. cap has the larger community by that measure.
Are cap and keploy free?
Both are open source. cap has no licence declared in this registry, and keploy is licensed under Apache-2.0. Both are free to self-host.
What is the difference between cap and keploy?
cap is written in Rust and keploy in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, cap or keploy?
Choose cap if you want the larger community (24,271 stars) or its Custom / other licence terms. Choose keploy if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.