head to head · open source
Yaak vs Tailcall
Yaak has 19,416 GitHub stars, 841 forks, 19 open issues and last shipped 3 days ago. Tailcall has 7,633 stars, 1,456 forks, 45 open issues and last shipped 2 days ago. Yaak leads on adoption by 154% (19,416 vs 7,633 stars). Yaak is written in TypeScript under MIT; Tailcall is written in Rust under Apache-2.0. Yaak has attracted 4% as many forks as stars, Tailcall 19%. Tailcall 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 | Tailcall | |
|---|---|---|
| GitHub stars | ★ 19K | ★ 7.6K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | Rust |
| Last push | 2026-11-02 | 2026-11-03 |
| Forks | ⑂ 841 | ⑂ 1.5K |
| 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 Tailcall if
- You want the Tailcall feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Rust
- You evaluated both and Tailcall fits your workflow better
About Yaak
💫 Yaak ➟ Desktop API Client 💫 A fast, privacy first API client for REST, GraphQL, SSE, WebSocket, and gRPC – built with Tauri, Rust, and React. Development is funded by community purchased licenses . You can also become a sponsor to have your logo appear below. 💖 Features Yaak is an offline first API client designed to stay out of your way while giving you everything you need when you need it. Built with Tauri, Rust, and React, it’s fast, lightweight, and private. No telemetry, no VC funding, and no cloud lock in. 🌐 Work with any API Import collections from Postman, Insomnia, OpenAPI, Swagger, or Curl. Send…
About Tailcall
⚒️ Forge: AI Enhanced Terminal Development Environment A comprehensive coding agent that integrates AI capabilities with your development environment curl fsSL sh Table of Contents Quickstart Usage Examples Why Forge? How Forge Works: Three Modes Interactive Mode (TUI) One Shot CLI Mode ZSH Plugin Mode ( : prefix) ZSH Plugin: The : Prefix System Agents Sending Prompts Attaching Files Conversation Management Git Integration Shell Command Tools Session & Configuration Skills Customizing Agent Behavior Semantic Search (Workspace) Quick Reference: All : Commands Command Line Options Advanced Configuration Provider…
read the full Tailcall overview →
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Frequently asked questions
Is Yaak or Tailcall more popular?
Yaak has 19,416 GitHub stars and Tailcall has 7,633. Yaak has the larger community by that measure.
Are Yaak and Tailcall free?
Both are open source. Yaak is licensed under MIT and Tailcall under Apache-2.0. Neither carries a licence fee.
What is the difference between Yaak and Tailcall?
Yaak is written in TypeScript and Tailcall in Rust. 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 Tailcall?
Choose Yaak if you want the larger community (19,416 stars) or its MIT licence terms. Choose Tailcall if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.