Keploy vs Yaak
A side-by-side comparison of two self-hosted developer tools & git options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Keploy | Yaak |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 95 · Excellent | 96 · Excellent |
| Category | Developer Tools & Git | Developer Tools & Git |
| License | Apache-2.0 | MIT |
| Language | Go | TypeScript |
| Setup difficulty | Medium | Easy |
| Min. RAM | 256 MB | 256 MB |
| Deployment | docker, binary | binary, source |
| GitHub stars | ★ 18,479 | ★ 19,253 |
| First released | 2022 | 2024 |
| Replaces | Postman | Postman, Insomnia |
What are Keploy and Yaak?
Keploy
Keploy is an open-source testing toolkit that records API calls and database interactions to automatically generate test cases and data mocks. It is self-hosted as a CLI and server for backend testing.
- Tests from real traffic
- Auto-generated mocks
- CI integration
- No code changes needed
Yaak
Yaak is a desktop API client for sending HTTP, GraphQL, and gRPC requests, designed to be fast and privacy-respecting. It stores data locally and supports plugins and Git-friendly workspaces.
- REST, GraphQL and gRPC support
- Local data storage
- Plugin system
- Git-friendly workspaces
Keploy vs Yaak: key differences
Keploy is written in Go, while Yaak is built with TypeScript. Licensing differs — Apache-2.0 for Keploy versus MIT for Yaak. Keploy is the more established project (first released 2022), while Yaak arrived in 2024. Keploy lists first-class Docker deployment; Yaak does not.
Why pick each one
Choose Keploy if…
- Tests from real traffic
- Automatic mock generation
- CI-friendly CLI
Watch out for
- Linux-centric capture
- Setup varies per stack
Choose Yaak if…
- Fast native app
- Local-first data storage
- Git-friendly workspaces
Watch out for
- Younger than rivals
- No built-in cloud sync
Frequently asked questions
Is Keploy or Yaak better?
Yaak is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Keploy if its specific feature set fits your needs better.
Are Keploy and Yaak free and open-source?
Yes. Keploy is licensed under Apache-2.0 and Yaak under MIT. Both can be self-hosted at no software cost.
Can I run Keploy and Yaak with Docker?
Keploy: yes. Yaak: check the project docs for container support.