Tool category
API & Auth Tools
Work with JWT, JWK, OpenAPI, GraphQL, and API authentication formats.Tools in this category
16 available now.
robots.txt Tester
Test pasted robots.txt rules locally for crawler access decisions and warnings.
/robots-txt-testerJWT Decoder
Decode JWT headers, payloads, claims, and timestamps locally.
/jwt-decoderJWT Verifier
Verify JWT signatures with a secret or public key and inspect claim checks locally.
/jwt-verifierJWK / JWKS Inspector
Inspect JSON Web Keys and JWKS key sets locally.
/jwk-jwks-inspectorOpenAPI / Swagger Viewer
Inspect OpenAPI and Swagger specs locally with endpoints, schemas, and warnings.
/openapi-swagger-viewerOpenAPI Validator
Validate OpenAPI and Swagger specs locally with structured errors and warnings.
/openapi-validatorcURL to Code Converter
Convert cURL commands into readable HTTP request code snippets locally.
/curl-to-code-converterGraphQL Formatter
Format GraphQL queries, mutations, fragments, and schema definitions locally.
/graphql-formatterGraphQL Query Pretty Printer / Tester
Format, validate, and inspect GraphQL operations and variables locally.
/graphql-query-testerHTTP Headers Parser / Formatter
Parse, format, inspect, and export HTTP headers locally with structured warnings.
/http-headers-parserUser Agent Parser
Decode browser, OS, device, engine, and bot hints from user agent strings locally.
/user-agent-parserHTTP Cookie Parser / Builder
Parse and build Cookie and Set-Cookie headers locally with secure attribute warnings.
/http-cookie-parserHTTP Status Code Lookup
Look up HTTP response status codes locally with meanings, examples, and API notes.
/http-status-code-lookupMIME Type Lookup
Look up MIME types and file extensions locally with Content-Type header examples.
/mime-type-lookupCSP Header Generator
Generate Content Security Policy headers with directives, warnings, and copy-ready output.
/csp-header-generatorCORS Header Explainer / Generator
Generate and explain CORS response headers locally with validation warnings.
/cors-header-generatorCommon tasks
- Decode JWT headers, payloads, claims, and expiration timestamps.
- Format and validate JSON payloads used in API responses.
- Use hashes or HMACs for secondary authentication and signing checks.
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