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 | support@zovo.one