API Testing
Enterprise API Workbench
Browser-native REST API client — response tree inspection, regression matrices, and CI-ready automation script generation.
GET · POST · PUT · DELETE
JSON Tree Viewer
Regression Matrix
Pytest · RestAssured · Playwright
Ready
No install required
Bearer · Basic auth
Request
— —
0ms
Auth
Payload (JSON)
Headers (JSON)
// Execute a request to generate automation code
| JSON Path | Type | Observed Value | Verification |
|---|---|---|---|
Execute a request to populate the regression matrix | |||
Free Online REST API Testing Tool — Enterprise Grade
Browser-native API client for QA engineers, SDETs, and backend developers. Send HTTP requests, inspect nested JSON trees, validate field types, generate CI-ready automation scripts — no installation required.
Interactive JSON Tree
Expandable/collapsible nodes with dotted connector lines, type-coloured value badges, and node count tracking.
Regression Matrix
Auto-flattened JSON path table with Assert/Pass/Fail/Skip dropdowns and one-click CSV export for TestRail or Jira.
CI Script Generator
Generates Pytest, RestAssured, Playwright, or cURL scripts from live responses — ready for GitHub Actions or Jenkins.
Auth Support
Bearer token, Basic auth, and custom API key headers — all scoped per-request with no state leakage between sessions.
Supported Automation Frameworks
| Framework | Language | Use Case |
|---|---|---|
| Pytest Requests | Python | Microservice regression, CI pipelines |
| RestAssured | Java | Backend contract testing |
| Playwright API | JavaScript | API + UI hybrid automation |
| cURL | Shell | Quick one-liners, import/export |
Frequently Asked Questions
Is this completely free to use?
Yes — unlimited requests, no account required. All processing happens in your browser; no data is sent to any server.
Can I test APIs that require authentication?
Yes. Bearer token, Basic auth, and custom API key header injection are all supported natively in the auth row.
How does the regression matrix work?
After a successful request, the JSON response is recursively flattened into a dot-notation path table. Each field shows its type and observed value. You can mark each field as Assert / Pass / Fail / Skip, then export to CSV for TestRail, Jira, or Azure DevOps.
Can I import a cURL command?
Yes — click "Import cURL" to paste any cURL command. The parser extracts the method, URL, headers, and body automatically.