Data and developer
Check and convert JSON, CSV, XML and YAML, and decode the odd token.
- QR code makerMake a QR code for a link, UPI ID, Wi-Fi or text.
- JSON formatter and validatorCheck JSON for mistakes and lay it out neatly.
- CSV to JSON converterTurn CSV into JSON and back.
- Spreadsheet converter (Excel, CSV, ODS, JSON)Convert XLSX, XLS, ODS, CSV, TSV and JSON to each other, or to HTML and text.
- QR code readerRead a QR code from a photo or your camera, and see the full link and any warning signs first.
- Code formatter (HTML, CSS, JavaScript)Tidy HTML, CSS, JavaScript, TypeScript, JSON, Markdown or YAML with Prettier.
- Colour picker and contrast checkerPick a colour from a photo or the screen, convert HEX, RGB, HSL and CMYK, and check contrast.
- Base64 encode and decodeConvert text or files to and from Base64.
- JSON, XML and YAML converterConvert XML to JSON or YAML and back, with attributes and lists kept.
- Markdown to HTMLTurn Markdown into clean HTML with a safe preview.
- Regex testerTry a regular expression against sample text.
- Security header checkerGrade a site’s HTTP response headers: CSP, HSTS, cookies and more.
- XML formatter and validatorCheck and tidy XML.
- YAML to JSON converterCheck YAML and convert it to JSON and back.
- HTML to MarkdownTurn HTML or a web page source into clean Markdown.
- URL encode and decodeEscape text for links, or read an escaped link.
- Unix timestamp converterTurn epoch seconds into a date and back, in any time zone.
- UUID generatorMake random v4 or time-ordered v7 UUIDs.
- JWT decoderRead a JSON Web Token and check its signature with the secret or public key.