Echo
Beyond API.

Lightning-fast, local-first API client built with Tauri and Rust. Experience the raw speed of native code without browser bloat.

Get the Latest Build Star on GitHub
Echo App Screenshot
TAURI
RUST
REACT
SQLITE
50ms
Avg. Response Time
0ms
CORS Latency
100%
Local Storage
15MB
Binary Size

CORS is now
Optional.

Stop fighting with browser security during local development. Echo's Rust-powered backend executes requests natively, bypassing the browser's sandbox entirely. No plugins, no proxy, no pain.

  • Direct Native Fetch
  • Zero Browser Restrictions
  • Secure Rust Execution
Request Lifecycle
Layer 01
Browser Sandbox
CORS Restricted
Tauri Native Bridge
Layer 02
Rust Native Runtime
No restrictions
Protocol: HTTP/2 (Native)

Your AI
Sidekick.

The built-in AI assistant doesn't just chat—it understands your workspace. It analyzes headers, request bodies, and responses to help you debug or generate code in seconds.

Context Aware
Understands active request parameters.
Multi-Model
OpenRouter, Gemini, OpenAI support.
Headers: { "Auth": "..." }
Response: 200 OK
Env: {{base_url}}
Body: { "user": "..." }

Designed for Speedrunners.

Ctrl + Enter
Send Request
Ctrl + S
Save Config
Ctrl + B
Toggle Sidebar
Alt + [1-9]
Switch Tabs

From Idea to
Production.

Generate copy-pasteable snippets for **cURL**, **Python**, **JavaScript**, and **Rust** instantly. Echo resolves all your environment variables so the code is ready to ship.

JS
fetch('https://api.echo.dev/...')
PY
requests.get(url, headers=...)
const
response = await fetch('https://api.echo.dev/v1', {
method: 'GET',
headers: {
'Authorization': 'Bearer {{token}}'
}
});

Everything you need,
nothing you don't.

Designed for speed, security, and developer happiness.

CORS-Free Native Client

Tired of CORS errors during development? Echo uses a native Rust backend to bypass browser restrictions effortlessly.

Local-First Persistence

Your data stays on your machine. Echo uses SQLite to store history, collections, and environments locally.

Context-Aware AI

Generate tests, document endpoints, or fix headers with our built-in AI assistant that understands your request context.

Nested Collections

Organize your APIs with recursive folders. Echo handles complex hierarchies and keeps your workspace tidy.

Environment Variables

Switch between Prod, Staging, and Dev instantly. Resolve variables dynamically in URLs, headers, and bodies.

Postman Compatibility

Seamlessly import and export Postman collections. Migrate your existing workflow in seconds.

Why switch to Echo?

Feature Echo The "Others"
Data Storage Local SQLite Proprietary Cloud
CORS Restrictions None (Native) Depends on Browser
AI Integration Context-Aware None / Paid Add-on
Performance Rust Engine Electron Bloat

FAQ

Is Echo really CORS-free?
Yes. Because Echo is built on Tauri, all network requests are handled by the Rust backend rather than the browser engine. This bypasses all browser-level CORS restrictions automatically.
Where is my data stored?
All your collections, history, and environment variables are stored in a local SQLite database on your machine. We never upload your data to any servers.
Can I import my Postman collections?
Absolutely. Echo supports importing Postman Collection v2.1.0 files directly, so you can migrate your existing workflows in seconds.

Which operating systems are supported?
Currently, Echo is optimized for Windows. macOS and Linux support are in active development and will be available in the next major release.

Ready to Echo?

Join thousands of developers building better APIs with the power of Tauri and Rust.

Download for Free