ApiArk vs Bruno
We love Bruno. We just built something faster.
RAM Usage
~50MB
ApiArk
150-300MB
Bruno
Startup
<2s
ApiArk
3-8s
Bruno
Download
~20MB
ApiArk
~80MB
Bruno
Bruno is a great project that proved the demand for local-first, git-friendly API clients. We share the same philosophy: no forced accounts, no cloud sync, no telemetry. Both tools are open source under the MIT license. Here is why you might prefer ApiArk.
Key differences
Tauri v2 vs Electron
Bruno uses Electron (Chromium + Node.js), consuming 150-300MB RAM. ApiArk uses Tauri v2 with a Rust backend and native OS webview -- 3-6x less memory, 2-4x faster startup.
Local mock servers
ApiArk includes built-in local mock servers powered by axum. Define mock responses with Faker.js data, latency simulation, and error injection. Bruno has no mocking support.
Monitoring & scheduled testing
Run collections on a cron schedule with desktop notifications, webhook alerts, and historical trend charts. All local, no cloud. Bruno does not have monitoring.
Full protocol coverage
ApiArk supports REST, GraphQL, gRPC, WebSocket, SSE, MQTT, and Socket.IO. Bruno supports REST and GraphQL, with gRPC added in v3. No WebSocket, SSE, MQTT, or Socket.IO.
Plugin system
Extend ApiArk with JavaScript or WASM plugins. Custom auth providers, request transformers, response visualizers, and more. Bruno has no plugin system.
Full feature comparison
| Feature | ApiArk | Bruno |
|---|---|---|
| Framework | Tauri v2 (Rust) | Electron |
| RAM Usage | ~50MB | 150-300MB |
| Startup Time | <2s | 3-8s |
| Data Format | YAML (standard) | .bru (custom) + YAML (v3) |
| REST | ||
| GraphQL | ||
| gRPC | ||
| WebSocket | ||
| SSE | ||
| MQTT | ||
| Socket.IO | ||
| Mock Servers | ||
| Monitoring / Scheduling | ||
| Collection Runner | ||
| API Docs Generation | ||
| Response Diff | ||
| Plugin System | JS + WASM | |
| Proxy Capture Mode | ||
| OpenAPI Spec Editor | ||
| CLI Tool | apiark | bru CLI |
| Code Generation | JS, Python, cURL | |
| Open Source | MIT | MIT |
| Account Required | ||
| Git-Friendly |
Same philosophy. More power.
Local-first, open source, git-native -- just like Bruno. Plus mock servers, monitors, gRPC, WebSocket, SSE, plugins, and native speed.