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Rustman

Open source MIT Rust
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Testing & QA

 About Rustman

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

Platforms

Web Self-hosted Cloud

Languages

Rust

Links

Website Source Code

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Rustman

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Rustman

A free, open-source, native API testing desktop app — built entirely in Rust with iced.

No subscriptions. No cloud sync. No telemetry. No webview. Your requests stay on your machine.

Download · Website

Core Philosophy

Rustman is, and will always be, completely free and open source.

  • No paid plans. No premium tier. No "Pro" version. No subscriptions. Ever.
  • No account required to use any feature.
  • No telemetry, no analytics, no phoning home.
  • Collections, history, and environments stay on your machine — always.

This is not a business. It is a tool built for developers, by a developer, and given to the community for free. That will never change.

Why Rustman?

Rustman Postman Bruno
Price Free forever Freemium / $14mo Free
Install size ~15 MB ~350 MB ~100 MB
No account ✓ ✗ ✓
Zero telemetry ✓ ✗ ✓
Native GUI (no webview) ✓ ✗ ✗
Native HTTP (no CORS) ✓ ✗ ✗
WebSocket support ✓ ✓ ✗
Git-based collection VCS ✓ ✗ ✗
Pre/post scripts Planned ✓ ✓
Large response viewer ✓ ✗ ✗

Features

  • Pure native GUI — built with iced, zero webview, zero Electron, zero JavaScript runtime
  • Native Rust HTTP engine — requests go through reqwest, no browser CORS limits or response size caps
  • WebSocket — full-duplex connections with a live message feed, send/receive in real time
  • JSON response viewer — syntax-highlighted, pretty-printed, with full text selection across the whole body
  • Collections & history — organize requests, replay from history, stored in local SQLite + Git VCS
  • Git-based collection versioning — every collection save is a real git commit; git log works in your data directory
  • Environment variables — {{variable}} substitution in URLs, headers, and bodies
  • All auth types — Bearer, Basic, API Key (header or query), Cookie, JWT
  • cURL import & export — paste any cURL command; parsed by a native Rust tokenizer
  • Postman collection import — import existing v2.1 collections and environments
  • OpenAPI import — import any OpenAPI 3.x spec and generate requests automatically
  • Pre/post-request scripts — (planned: rquickjs JavaScript sandbox)
  • Multiple request tabs — work on several requests at the same time
  • Session persistence — open tabs are restored on next launch

Download

Grab the latest binary from the releases page.

Platform File
macOS (Apple Silicon + Intel) Rustman-macos-universal.dmg
Windows x86_64 rustman-windows-x86_64.zip
Linux x86_64 rustman-linux-x86_64.tar.gz

Build from source

Requirements: Rust toolchain (stable) and a few system libraries (see below).

git clone https://github.com/animeshchaudhri/rustman
cd rustman
cargo build --release

The binary is at target/release/rustman.

Linux system dependencies

sudo apt-get install -y \
  libxkbcommon-dev libxi-dev libx11-dev \
  libxcb1-dev libxcb-xkb-dev libdbus-1-dev \
  pkg-config cmake build-essential

macOS and Windows have no extra requirements beyond the Rust toolchain.

Development

cargo run

Tech stack

  • GUI — iced 0.13 (pure Rust, wgpu-rendered)
  • HTTP — reqwest 0.12 with rustls
  • WebSocket — tokio-tungstenite
  • Storage — rusqlite (SQLite, bundled)
  • Collection VCS — git2 (libgit2)
  • Scripting — rquickjs (QuickJS JavaScript engine, planned)
  • Syntax highlighting — tree-sitter (JSON, JavaScript)

License

MIT — see LICENSE