API Tester

A cloud-based API testing tool for developers and QA to craft requests, group them into collections, manage environments, and validate responses without local installations.

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Client-Side Privacy
4.9 / 5.0
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About This Tool

This tool provides a cloud-based API testing workspace modeled after Postman, solving the problem of designing, sending, and validating HTTP requests without local tooling. Primary users are developers, QA engineers, API integrators, and platform engineers who need fast feedback on endpoints during development, testing, and CI integration. The tool helps verify contract compliance, endpoint behavior, and performance characteristics in a repeatable way.
Workflow supports creating a collection of requests, defining environments with variables, and executing tests against real or mock endpoints. Each request captures method, URL, headers, and an optional body; responses expose status, time, headers, and payload for evaluation. Tests can assert status codes, header presence, and body structure using JSONPath or schemas, enabling automated validation in CI pipelines. OpenAPI/Swagger import accelerates bootstrap by generating endpoints and tests from specs.
The platform provides per-request history, export options (JSON or HAR), and straightforward collaboration through shareable collections while safeguarding sensitive data via environment masking and session-scoped credentials. It emphasizes REST/HTTP semantics, supports common auth schemes (Bearer, API key, Basic), and accommodates proxies and timeouts for realistic testing conditions.
Use cases include contract testing, regression checks, smoke tests, and API health audits. Unique value lies in being appliance-like for quick web-based testing without local installs, combined with open formats and OpenAPI support to integrate into existing development workflows.

How to Use

  1. Create a new request by selecting the HTTP method and entering the endpoint URL.
  2. Add headers, query parameters, and an optional body; configure authentication and environment variables.
  3. Send the request and review status, time, headers, and body.
  4. Define tests or assertions to validate responses (status, headers, JSON structure).
  5. Save to a collection, configure environments, and run automated tests or export results for CI.
  6. Reuse endpoints by importing OpenAPI specs or duplicating requests across collections.
How to use online tool similar to postman

Frequently Asked Questions

Find Quick Answers

What is this tool used for?
It is an online API testing environment for crafting, sending, and validating HTTP requests. It supports collections, environments, assertions, and OpenAPI imports to streamline API development and testing without local software.
What data formats are supported?
Requests accept JSON or text bodies with headers and query parameters. Responses can be inspected as JSON or raw text, and tests can verify structure, types, and content using JSONPath or schemas.
How is security handled?
Credentials are stored per session or within environment variables. Secrets should be masked in environments and not embedded in requests. Exports can be encrypted or limited by user permissions.
Can teams collaborate on tests?
Yes. Collections and environments can be shared with teammates, and versioning or history keeps track of changes to support collaboration and reproducibility in development and CI workflows.

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