https://api-tester.com/ New sections and notable changes on api-tester.com. en Fri, 09 Oct 2026 09:00:00 GMT https://api-tester.com/tools/swagger-editor/ https://api-tester.com/tools/swagger-editor/#2026-10-09 Fri, 09 Oct 2026 09:00:00 GMT An editor for OpenAPI and Swagger documents with live documentation and errors by line, and an HTML formatter that never adds whitespace a browser would show. https://api-tester.com/tools/sql-formatter/ https://api-tester.com/tools/sql-formatter/#2026-10-08 Thu, 08 Oct 2026 09:00:00 GMT A SQL formatter that lays a query out clause by clause and checks it changed nothing else, and a case converter for text, identifiers and JSON keys. https://api-tester.com/tools/dns-lookup/ https://api-tester.com/tools/dns-lookup/#2026-10-08 Thu, 08 Oct 2026 09:00:00 GMT Two tools that run on our server because a browser cannot: look up the DNS records of a domain, and check a certificate's trust, host name match, chain and expiry date. https://api-tester.com/learn/ https://api-tester.com/learn/#2026-10-08 Thu, 08 Oct 2026 09:00:00 GMT Eight beginner guides (what an API, JSON, a webhook, an API key and OAuth are; SOAP vs REST; HTTP vs HTTPS; MIME types), a JSON viewer, validator and compare tool, testers for DeepSeek, Grok, Groq, OpenRouter and Stripe, and 23 more status codes. https://api-tester.com/editorial-policy/ https://api-tester.com/editorial-policy/#2026-10-08 Thu, 08 Oct 2026 09:00:00 GMT New pages on how to reach the site, the terms of use and how the reference content is checked, plus a search across every page. https://api-tester.com/webhooks/ https://api-tester.com/webhooks/#2026-10-08 Thu, 08 Oct 2026 09:00:00 GMT Payloads, headers and signature checks for 30 providers, each with references to the official documentation. https://api-tester.com/curl/ https://api-tester.com/curl/#2026-10-07 Wed, 07 Oct 2026 09:00:00 GMT One page per task, from a first GET to proxies, TLS options and converting a command to code.