Security testing
Security checks built into the requests you already test.
Audit API requests for insecure options and exposed credentials before they ship, inspect and verify tokens, and test how your app behaves when a dependency fails. These are focused checks, not a full security assessment.
Request security audit
API Studio flags insecure transport, disabled certificate checks, and credentials written into commands.
Token inspection
Decode, inspect, sign, and verify JWTs with HMAC, RSA, and ECDSA keys, entirely in your browser.
Failure handling
Inject errors and latency with API Inspector rules to see how your app copes when a service fails.
What you can do today
- Audit a request for security and reliability issues before sending it
- Replace hard-coded credentials with placeholders before sharing a command
- Inspect and verify JWT signatures and claims
- Compute and verify hashes and HMAC signatures
Scope and limits
- These checks do not replace a penetration test or a security audit
- Passing them does not mean an application is secure or certified
- Test only systems you are authorized to test
In the product
The tools behind this page.
Each of these is available in Testnir today.
- API StudioPaste a cURL command, build a request visually, or describe it in plain English. Then send it, audit it for security and reliability, and ship it as production-ready code.
- JWT Encoder & DecoderDecode, inspect, sign, and verify JWTs - HMAC, RSA & ECDSA, fully in-browser.
- Encoding & HashingConvert Base64/Base32/Hex, URL, HTML & more with auto-detect; MD5/SHA/CRC32 digests, HMAC signing & verification, and file checksum manifests - all in-browser.
- API InspectorIntercept requests and rewrite them on the fly: mock endpoints that do not exist yet, redirect a route to staging or localhost, inject or strip headers, and inject latency and failures to test how your app copes.
See whether Testnir fits your team.
Book a demo of the platform, discuss a testing project, or both. We will reply by email to plan the conversation.