API Testing PRO by Zovo - REST & HTTP Client

API Testing PRO by Zovo - The fastest way to test REST, GraphQL & WebSocket APIs directly in your browser. No account required. No bloated desktop apps.

Stop switching between Postman and your code editor. API Testing PRO runs entirely in your browser - offline, private, and lightning-fast. Test any endpoint, inspect responses, and debug APIs in seconds.

KEY FEATURES

Full HTTP Support - GET, POST, PUT, PATCH, DELETE with custom headers, auth, and body.
REST, GraphQL & WebSocket - Test any API protocol. Send queries, mutations, and real-time connections.
Syntax Highlighting - JSON/XML responses beautifully formatted with color-coded syntax.
Response Timing - Track response times to identify slow endpoints and bottlenecks.
Request History - All requests stored locally. Recall and re-run previous tests instantly.
Import/Export Collections - Share API collections with your team. Export as JSON.
Authentication Support - Bearer tokens, Basic Auth, API keys, custom headers - all built in.
Dark Mode - Auto system theme detection or manual toggle. Easy on eyes during late-night debugging.

PERFECT FOR

Backend developers testing endpoints during development
Frontend devs debugging API responses and payloads
QA engineers validating API contracts and status codes
DevOps monitoring service health and response times
Teams tired of heavy, bloated tools like Postman

HOW IT WORKS

1. Click the extension icon open clean testing interface
2. Enter your API endpoint URL and select HTTP method
3. Add headers, auth, and request body as needed
4. Send request inspect formatted response with timing data

FREE: All HTTP methods, headers, auth, syntax highlighting, history, dark mode
PRO: Unlimited history, team collections, environment variables, scheduled tests

PRIVACY: 100% offline. Your data never leaves your browser. No analytics. No tracking.
https://zovo.one/privacy/api-testing-pro

Built by Zovo - Developer tools that respect your data.
https://zovo.one | [email protected]