Small tools for your next build.
Format, encode, decode and generate, with the details kept on your device.
Developer tools
8 toolsJSON formatter & validator
Validate JSON syntax, add indentation or remove whitespace.
Developer · No sign-upURL encoder / decoder
Encode URL components or decode percent-escaped text.
Developer · No sign-upBase64 encoder / decoder
Convert UTF-8 text to and from standard or URL-safe Base64.
Developer · No sign-upHTML entity encoder / decoder
Encode special characters or decode HTML character references.
Developer · No sign-upUUID generator
Generate individual or bulk random UUID v4 identifiers.
Developer · No sign-upRandom password generator
Generate fresh passwords with length and character controls.
Developer · No sign-upQR code generator
Create static QR codes for links, text and Wi-Fi. Download PNG or SVG without signing up.
Developer · No sign-upUnix timestamp converter
Convert Unix seconds or milliseconds to UTC dates, or UTC dates to timestamps.
Developer · No sign-upPrivate by designInputs and results stay on your device.
Clear, useful controlsExamples and limits explained for each tool.
Free. No sign-up.Open a tool and get started.