Browser API Client

Lightweight API client in your browser. Build requests, inspect responses, manage environments. No account required.

Browser API Client is a lightweight API testing tool that lives in your browser. No desktop app to install, no account to create, no cloud sync you didn't ask for. Open the popup, build a request, hit Send. CORE FEATURES (free, no limits): - Full HTTP support — GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS. - Request builder — URL bar, query params, headers, body (JSON, form data, raw text). - Authentication — Bearer token, Basic auth, API key header. One click to set up. - Response viewer — Status code, timing, size. Pretty-printed JSON, raw body, response headers. - Code export — Generate cURL, JavaScript fetch(), or Python requests code from any request. - Dark and light themes. FREE TIER LIMITS: - 50 saved history entries - 1 environment - Full request builder with all HTTP methods and auth types PRO TIER ($50/yr, 7-day free trial): - Unlimited request history — never lose a request. - Multiple environments — switch between dev, staging, and production with one click. Variables use {{name}} syntax and interpolate at send time. - Collections — organize requests into named groups. Search, duplicate, reorder. - Postman import/export — bring your Postman collections and environments over. Export back if you want. No lock-in. WHY BROWSER API CLIENT? - Postman killed its free team plan. API testing shouldn't require a subscription to a bloated desktop app. - Thunder Client, REST Client — they live in VS Code. This lives in your browser, where you're already looking at the API docs. - Zero tracking. Zero analytics. Your API keys and tokens stay on your device. - Requests execute via the extension's background worker, bypassing CORS. Test any API from any page. Built by Brightbar (brightbar.dev).