head to head · open source
Yaak vs open-connector
Yaak has 19,243 GitHub stars, 817 forks, 19 open issues and last shipped 2 days ago. open-connector has 5,833 stars, 511 forks, 0 open issues and last shipped today. Yaak leads on adoption by 230% (19,243 vs 5,833 stars). Yaak is written in TypeScript under MIT; open-connector is written in TypeScript under Apache-2.0. Yaak has attracted 4% as many forks as stars, open-connector 9%. open-connector 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
| Yaak | open-connector | |
|---|---|---|
| GitHub stars | ★ 19K | ★ 5.8K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-18 | 2026-09-20 |
| Forks | ⑂ 817 | ⑂ 511 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Yaak if
- You weight community size — 19K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick open-connector if
- You want the open-connector feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and open-connector fits your workflow better
About Yaak
Yaak is a desktop API client for REST, GraphQL, gRPC, WebSocket, and Server Sent Events. It is built with Tauri, Rust, and React, and it lives in the developer tools ecosystem for API development and testing. The project presents itself as an offline first, privacy first alternative to Postman, Insomnia, and Bruno.
About open-connector
OpenConnector is an open source auth gateway that connects more than a thousand SaaS providers to AI agents through a Connector SDK, the oo CLI, MCP, HTTP/OpenAPI, and a Web Console, and it is built for developers and teams wiring durable app access into agent products.
read the full open-connector overview →
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Frequently asked questions
Is Yaak or open-connector more popular?
Yaak has 19,243 GitHub stars and open-connector has 5,833. Yaak has the larger community by that measure.
Are Yaak and open-connector free?
Both are open source. Yaak is licensed under MIT and open-connector under Apache-2.0. Neither carries a licence fee.
What is the difference between Yaak and open-connector?
Yaak is written in TypeScript and open-connector 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, Yaak or open-connector?
Choose Yaak if you want the larger community (19,243 stars) or its MIT licence terms. Choose open-connector if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.