animeshchaudhri

animeshchaudhri / rustman

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Free, open-source API testing desktop app built with Rust + Tauri. No account, no cloud, no telemetry.

animeshchaudhri.github.iorustman api-client api-testing desktop-app open-source postman-alternative
41
3
100% credibility
Found May 26, 2026 at 41 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
TypeScript
AI Summary

Rustman is a free, privacy-focused desktop application for testing APIs — the kind of tool developers use to make sure their web services work correctly. Unlike expensive alternatives, it doesn't require an account, doesn't send your data anywhere, and works completely offline after installation. You can send requests, organize them into collections, add authentication, write automated tests, and import existing projects from other tools. The app stores everything locally on your computer using a small built-in database.

How It Works

1
💡 You need to test an API

You're a developer who needs to check if your API is working correctly, but you don't want to pay for expensive tools or create yet another account.

2
📦 You download Rustman for free

You grab the installer from the releases page — it's tiny (about 20 MB) and works on your Mac, Windows, or Linux computer.

3
🚀 You install and open the app

The app launches instantly. There's no account setup, no cloud connection, no pop-ups asking for your data — just a clean interface ready to use.

4
🌐 You enter a website address and hit Send

Type any URL into the address bar, pick what kind of request you want (GET, POST, etc.), and click Send. Your request goes directly to the internet — no browser limits.

5
You explore what you can do
🔐
Add authentication

Attach login tokens, API keys, or cookies to your requests with a few clicks

📁
Organize into collections

Save your requests into folders so you can reuse them later without typing everything again

🧪
Write test scripts

Add simple checks to verify the API returns the right data — like making sure a status code is 200

6
📋 You see your results instantly

The response appears right away with status codes, headers, timing info, and the actual data — even for very large responses.

✅ Your API testing is done

Everything stays on your computer. No subscriptions, no tracking, no internet required after you download it. Your requests are organized and ready whenever you need them.

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AI-Generated Review

What is rustman?

Rustman is a free, open-source desktop app for API testing, built with Rust and Tauri v2. It gives you a Postman-like interface for sending HTTP requests, managing collections, writing test scripts, and handling authentication -- but without requiring an account, cloud sync, or telemetry. Everything stays local on your machine. The app ships at around 20 MB and runs requests through a native Rust HTTP engine rather than a browser, which means no CORS restrictions or response size caps.

Why is it gaining traction?

The main hook is privacy and simplicity. Postman has become bloated and increasingly paywalled. Rustman offers the same core workflow -- environment variables, pre/post scripts with a pm.* API, Bearer/Basic/API Key/Cookie/JWT auth, cURL import/export, and Postman collection import -- in a lightweight package that asks nothing from you. The Monaco editor in the request body and scripts is a genuine quality-of-life improvement over Postman's basic text areas. Six accent themes and a dark/light mode toggle make it feel polished for a project at this stage.

Who should use this?

Backend developers who want a capable API client without signing up for anything will find this immediately useful. Frontend devs debugging APIs will appreciate the lightweight footprint and fast startup. Teams evaluating Postman alternatives for privacy or cost reasons should give it a look. That said, if you need collaboration features, mock servers, or enterprise support, you'll still need Postman or Insomnia.

Verdict

At 41 stars with a 1.0% credibility score, rustman is early-stage software from a solo developer. It works well for its feature set and the codebase shows thoughtful engineering, but you should expect rough edges and limited documentation. For personal use or small projects, it's a solid free alternative worth trying -- just don't bet a production workflow on it yet.

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