Converters

Convert between common file and data formats — CSV, JSON, Markdown, and more — with everything processed locally in your browser.

About these tools

The sixteen tools on this page fall into a few groups. For data, there are CSV to JSON, JSON to CSV, YAML to JSON (in either direction) and CSV ↔ XLSX. Zip Files, Unzip Files and Archive Extractor handle archives, and the extractor opens .zip, .7z, .rar, .tar, .tar.gz and .tgz files. Audio Converter, MP3 Encoder, SVG to PNG/JPG and Image to SVG convert media. URL Encoder & Decoder, Unix Timestamp Converter, Time Zone Converter, Number Base Converter and Markdown to HTML Converter cover text, time and number formats. Every conversion runs in your browser, so files and pasted text are not uploaded.

A few results to compare. CSV to JSON turns the lines name,age / Asha,30 / Ravi,25 into two objects, and the values stay as text, so the age is "30" rather than the number 30. JSON to CSV uses the keys from every row as columns: [{a:1,b:"x"},{a:2,c:true}] gives the header a,b,c and leaves a blank cell wherever a row lacks that key. The URL encoder turns a b&c=d into a%20b%26c%3Dd, and the number 255 is 11111111 in binary, 377 in octal and FF in hexadecimal. Unix time 1700000000 is 22:13:20 UTC on 14 November 2023. Conversions that change the format of media, such as SVG to PNG, cannot add detail the source did not have.

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