Converters
Convert between units, formats, and data types instantly — everything runs locally.
Numbers and units 7
Data between shapes 6
CSV 3
Files 5
Not sure which tool?
Two different kinds of conversion live here. Numbers and units — between measurement systems, number bases, Roman numerals, coordinate systems, and time as a decimal. Data between shapes — CSV to JSON and back, XML to JSON, Excel in and out, character encodings, quoted-printable, PHP serialize, gzip and deflate.
A broken CSV is usually one of a few specific things. Validate tells you which row breaks and why. Transpose swaps rows and columns when a spreadsheet arrives the wrong way round. Convert to formats takes it to JSON, SQL, Markdown or HTML in one step.
If text arrives as ìƒì„ or ë°˜ rather than words, that is a character encoding mismatch rather than damage, and the charset converter is what recovers it — most often a file written as EUC-KR or Shift-JIS being read as UTF-8. The bytes are still correct; only the reading is wrong.