Developer & Data
16 tools
Formatters, encoders, hashes and file utilities built for day-to-day development work.
- JSON FormatterFormat, minify and validate JSON with errors pointed at the exact line.
- HTML FormatterFormat and minify HTML markup.
- CSS FormatterFormat and minify CSS stylesheets.
- JavaScript FormatterFormat and minify JavaScript and TypeScript source.
- Syntax HighlighterHighlight code in many languages and copy it as styled HTML.
- Password GeneratorCreate strong passwords from the browser crypto random source.
- Hash GeneratorCompute MD5, SHA-1, SHA-256 and SHA-512 digests of text or a file.
- Base64 Encoder & DecoderEncode and decode Base64 for text and files, including data URLs.
- URL Encoder & DecoderPercent-encode and decode URLs and query strings.
- JWT DecoderInspect the header, payload and expiry of a JSON Web Token locally.
- UUID GeneratorGenerate UUID v4 values in bulk, with formatting options.
- File SplitterSplit a large file into chunks by size or piece count, streamed without loading it all into memory.
- File JoinerRejoin split chunks back into the original file and verify the result.
- PDF Merge, Split & ConvertMerge PDFs, split or extract pages, and convert between images and PDF — processed entirely in your browser, nothing is uploaded.
- Dummy File GeneratorCreate test files of an exact size with random or zero-filled content.
- Mock Data GeneratorBuild a schema, then generate realistic sample records and export them as JSON, CSV or SQL INSERT statements — in your browser, with no limits and no upload.