Developer tools
Everyday developer utilities with no tracking and no pasting your data into someone else's server.
JSON formatterBeautify, validate and minify JSON with clear errors.Base64 encode / decodeText or files to Base64 and back, UTF-8 safe.URL encode / decodePercent-encode, decode and inspect URLs.UUID generatorv4 and v7 UUIDs, one or a thousand at a time.Hash generatorSHA hashes of text or files, plus checksum verification.CSS minifierPaste or drop a stylesheet and get a smaller one back, live.JavaScript minifierTerser in your browser: smaller JS, and clear errors when something is off.HTML minifierStrip comments and whitespace, and shrink inline CSS and JS too.Color converter & contrast checkerPaste any color, get every format, plus contrast, shades and color-blind previews.Cron expression generatorBuild a schedule visually, read it in plain English, see when it runs next.CSV to JSONTurn spreadsheet exports into clean JSON, typed and shaped the way you need.JSON to CSVFlatten nested JSON into a tidy CSV that opens straight in Excel.CSV viewer & editorOpen huge CSV files in a smooth table, then sort, filter, edit and export.Favicon generatorEvery icon size your site needs, from a logo, a letter or an emoji.JWT decoderSee what's inside a token, when it expires, and whether its signature holds up.Regex testerLive highlighting, groups, replace preview and errors that tell you what to fix.SQL formatterTurn one-line queries into readable SQL, in your database's dialect.