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Test authorized REST APIs with safety-focused debugging features
Test only APIs you own, manage, or are explicitly authorized to access. Localhost, private-network targets, scanning, abuse, and access-control bypass are blocked.
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Everything you need for comprehensive API testing, from basic requests to advanced automation
Test actual APIs with full HTTP method support including GET, POST, PUT, DELETE, PATCH, and more.
Supports Bearer tokens, Basic authentication, API keys, and custom authentication methods.
Save and manage your test requests with a complete history of all API calls with search.
Generate code snippets in multiple programming languages for your API requests.
Create assertions and test cases to validate your API responses automatically.
Manage environment variables and switch between different API environments easily.
Discover how our API Tester can help you with different testing scenarios
Test RESTful APIs with proper HTTP methods and headers
GET /api/usersTest OAuth, JWT tokens, and API key authentication
Bearer Token AuthValidate JSON responses and status codes
Assert status === 200Use variables for different environments
{{BASE_URL}}/apiRun multiple tests in sequence
Collection RunnerExport requests as cURL, JavaScript, Python
curl -X POST...This tool helps you test and debug APIs you own, manage, or are explicitly authorized to access. Let's get started!
Start by entering the URL and selecting the HTTP method.
Add authentication and custom headers to your requests.
Add query parameters and request body for POST/PUT requests.
{
"title": "My Post",
"body": "This is the content",
"userId": 1
}View and analyze your API responses with enhanced features.
Explore advanced features like environment variables and code generation.
Each workflow below targets a real search intent—from configuring auth to exporting cURL—so you can cover every question users ask.
Create DEV, QA, PROD environments, reference {{VARIABLE_NAME}} in URLs or headers, and let localStorage keep values synced.
Switch between Bearer Token, Basic Auth, and API Key with color-coded selectors and JWT validation feedback.
Choose None, Raw, Form Data, or Binary, auto-assign Content-Type, and prettify JSON before sending.
Toggle Formatted, Raw, and Headers views, copy or download payloads, and watch real-time latency plus payload size.
Use Ctrl+R to send, Ctrl+T to open tabs, Ctrl+1-9 to jump tabs, and Ctrl+? to open the cheat sheet.
Add key-value pairs in Query Params, preview encoded URLs instantly, and prevent duplicated keys with inline validation.
Insert presets for Authorization or Content-Type, batch enable/disable headers, and avoid manual typos.
Follow the six-step onboarding to learn environment setup, auth, bodies, responses, history, and code generation.
Export any request as cURL (with headers and body) and share it across Slack, docs, or CI pipelines.
Toggle the theme switch in the header to enable the optimized dark mode for nighttime debugging.
Set up variables like {{API_URL}} for different environments
Use collections to organize and reuse your most common API calls
Create assertions to automatically validate status codes and response data
Generate ready-to-use code snippets for your applications
Story-driven examples showing how teams use the tool for real-world debugging, collaboration, and migrations.
A fintech team uses environment templates to switch between DEV and PROD in seconds, cutting misrouted requests by 75%.
A SaaS company relies on JWT auto-validation to flag expired tokens during on-call rotations, preventing midnight regressions.
A microservice platform toggles feature flags across dozens of headers via bulk actions during canary deployments.
Performance testers track 1.2s latency spikes down to 450ms using built-in response time widgets and history snapshots.
A 15-person team moved collections in two weeks, citing faster startup times and easier cURL imports as key wins.
QA reruns stored failing calls after backend fixes, confirming bug resolutions without rebuilding complex bodies.
Mobile engineers debug tablet-specific APIs in the responsive layout while commuting with only a lightweight laptop.
Backend engineers share generated Python/Node snippets with frontend peers, reducing miscommunication in standups.
Observability teams leverage human-readable error prompts to fix misconfigured API keys within ten minutes.
A GraphQL squad validates a future explorer view by plugging into the existing layout and preview card slots.
Answers to the most common authentication, environment, and roadmap questions.
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