Developer

Developer

• JSON Formatter & ValidatorPretty-print, minify and validate JSON.
• JSON Converter: YAML, XML, CSV & TOONConvert JSON to YAML, XML, CSV, TSV or TOON and back again, with indent, sorting, delimiter and type options.
• JSON to TypeScriptTypeScript types from a JSON sample.
• Mock JSON GeneratorFake test data in JSON.
• CSV ViewerOpen a CSV as a sortable table.
• Code Formatter & MinifierFormat or minify HTML, CSS, JavaScript, SQL, XML, YAML and GraphQL, and check XML.
• Markdown ↔ HTMLPreview Markdown, convert to and from HTML, and export to Word or PDF.
• Regex TesterTest regular expressions with live matches and a plain-English explanation.
• Base64 Encode & DecodeEncode and decode Base64 text.
• URL ParserSplit a URL into its parts and query parameters.
• HTML Entities List & EncoderEvery named HTML entity with its codes, plus an encoder and decoder.
• JWT Decoder & EncoderRead a JSON Web Token, check an HS256 signature or sign a test token.
• UUID & ULID GeneratorRandom UUIDs (v4, v7) and ULIDs.
• Unix Timestamp ConverterTimestamps to dates and back, in any time zone.
• Cron Expression ExplainerA cron schedule in plain words, with the next runs.
• Number Base ConverterBinary, octal, decimal and hex.
• Chmod CalculatorUnix file permissions in numbers and letters.
• IP Subnet CalculatorCIDR ranges, masks and host counts.
• Code to ImageTurn code into a highlighted image with themes, window frame and line numbers, as PNG.
• AI Token CounterCharacters, words and an estimated token count for prompts and documents, with the method shown.
• HTTP Status CodesWhat every HTTP status code means.