apiark

ApiArk

The API platform that respects your privacy, your RAM, and your Git workflow.

No login. No cloud. No bloat.

Postman uses 800 MB of RAM. ApiArk uses 60 MB.

Download • Features • Switching from Postman • Performance • Community • Development

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More screenshots

POST Request GraphQL

WebSocket Server-Sent Events

PUT Request PATCH Request

DELETE Request

Why ApiArk?

	Postman	Bruno	Hoppscotch	ApiArk
Framework	Electron	Electron	Tauri	Tauri v2
RAM Usage	300-800 MB	150-300 MB	50-80 MB	~60 MB
Startup	10-30s	3-8s
Package managers

# Homebrew (macOS)
brew tap berbicanes/apiark
brew install --cask apiark

# Scoop (Windows)
scoop bucket add apiark https://github.com/berbicanes/apiark
scoop install apiark

# APT (Debian/Ubuntu)
curl -fsSL https://berbicanes.github.io/apiark-apt/install.sh | sudo bash
sudo apt install apiark

Also available on the Microsoft Store.

Build from source

Prerequisites: Node.js 22+, pnpm 10+, Rust toolchain, Tauri v2 system deps

git clone https://github.com/berbicanes/apiark.git
cd apiark
pnpm install
pnpm tauri build

Switching from Postman

1. Export your Postman collection (Collection v2.1 JSON)
2. Open ApiArk
3. Ctrl+K > "Import Collection" > select your file
4. Done. Your requests are now YAML files you own.

Also imports from: Insomnia, Bruno, Hoppscotch, OpenAPI 3.x, HAR, cURL.

Features

Multi-Protocol — REST, GraphQL, gRPC, WebSocket, SSE, MQTT, Socket.IO in one app. No tool has broader protocol coverage.

Local-First Storage — Every request is a .yaml file. Collections are directories. Everything is git-diffable. No proprietary formats.

Dark Mode + Themes — Dark, Light, Black/OLED themes with 8 accent colors.

TypeScript Scripting — Pre/post-request scripts with full type definitions. ark.test(), ark.expect(), ark.env.set().

Collection Runner — Run entire collections with data-driven testing (CSV/JSON), configurable iterations, JUnit/HTML reports.

Local Mock Servers — Create mock APIs from your collections. Faker.js data, latency simulation, error injection. No cloud, no usage limits.

Scheduled Monitoring — Cron-based automated testing with desktop notifications and webhook alerts. Runs locally, not on someone else's server.

API Docs Generation — Generate HTML + Markdown documentation from your collections.

OpenAPI Editor — Edit and lint OpenAPI specs with Spectral integration.

Response Diff — Compare responses side-by-side across runs.

Proxy Capture — Local intercepting HTTP/HTTPS proxy for traffic inspection and replay.

AI Assistant — Natural language to requests, auto-generate tests, OpenAI-compatible API.

Plugin System — Extend ApiArk with JavaScript or WASM plugins.

Import Everything — Postman, Insomnia, Bruno, Hoppscotch, OpenAPI, HAR, cURL. One-click migration.

Performance

Built with Tauri v2 (Rust backend + native OS webview), not Electron.

Metric	Target
Binary size	~20 MB
RAM at idle	~60 MB
Cold startup	{

const body = ark.response.json();
ark.expect(body).to.have.property("id");

});

## CLI

```bash
# Run a collection
apiark run ./my-collection --env production

# With data-driven testing
apiark run ./my-collection --data users.csv --reporter junit

# Import a Postman collection
apiark import postman-export.json

…

bash
# Install dependencies
pnpm install

# Run in development mode
pnpm tauri dev

# TypeScript check
pnpm -C apps/desktop exec tsc --noEmit

# Build for production
pnpm tauri build

Project Structure

apiark/
├── apps/
│   ├── desktop/           # Tauri v2 desktop app
│   │   ├── src/           # React frontend
│   │   └── src-tauri/     # Rust backend
│   ├── cli/               # CLI tool (Rust)
│   ├── mcp-server/        # MCP server for AI editors
│   └── vscode-extension/  # VS Code extension
├── packages/
│   ├── types/             # Shared TypeScript types
│   └── importer/          # Collection importers
└── docs/                  # Documentation and legal

Tech Stack

Frontend: React 19, TypeScript, Vite 6, Zustand, Tailwind CSS 4, Monaco Editor, Radix UI

Backend: Rust, Tauri v2, reqwest, tokio, tonic (gRPC), axum (mock servers), deno_core (scripting)

Contributing

Contributions are welcome! Check out the GitHub Issues for open tasks and feature requests.

License

MIT

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