Developer tools
Format JSON, test regex, decode JWTs, convert CSV and validate GSTIN, PAN and IFSC. 19 tools, all free, all running in your browser.
19 tools
JSON Formatter & ValidatorFormat, validate and minify JSON with clear error line and column. Sort keys, choose…Base64 Encode / DecodeEncode and decode Base64 with full UTF-8 support (Tamil, emoji), URL-safe option, and…URL Encode / DecodePercent-encode or decode URLs and query strings, and break a URL into its parts and…Color Picker & PalettePick a colour, convert HEX/RGB/HSL, generate shades, tints and harmony palettes, and…UUID GeneratorGenerate cryptographically random UUID v4 values in bulk, uppercase or without…Hash Generator (SHA-256)Compute SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or files locally to verify…Regex TesterTest JavaScript regular expressions with live match highlighting, capture groups and…JWT DecoderDecode JWT header and payload, check expiry time, all locally. The signature is not…Unix Timestamp ConverterConvert Unix epoch timestamps (seconds or milliseconds) to IST, UTC and local time…CSV ⇄ JSON ConverterConvert CSV to JSON and JSON to CSV with quoted fields, custom delimiters and…Markdown to HTMLConvert Markdown to clean HTML with a live preview: headings, lists, links, code…IFSC Code Validator & Bank FinderCheck whether an IFSC code is valid, see which bank it belongs to and look up bank…PIN Code Region FinderValidate a 6-digit Indian PIN code and see its postal zone, state or circle, sorting…GSTIN ValidatorValidate a 15-character GSTIN with the official check digit, see the state, PAN and…PAN Card ValidatorCheck whether a PAN is in the correct format and see the holder type (individual…JSON ValidatorCheck whether a JSON string is valid and see clear error messages.HTML FormatterBeautify HTML indentation for readability.CSS FormatterBeautify or minify CSS for development and delivery.JavaScript FormatterBeautify JavaScript with clean, consistent indentation in your browser.