Online Format Converters
Converters turn data from one format into another: JSON to CSV and CSV to JSON, Markdown to HTML, URL encoding and decoding, HEX / RGB / HSL color codes, and Unix timestamps to human-readable dates.
- 6 tools
- Free
- No sign-up
- JSON to CSV Converter Turn a JSON array into a CSV for Excel.
- CSV to JSON Converter Turn CSV or Excel data into a JSON array.
- Markdown to HTML Converter Convert Markdown into clean HTML source.
- URL Encode & Decode Percent-encode and decode URLs and parameters.
- Color Converter HEX, RGB, HSL, CMYK conversion and contrast check.
- Unix Timestamp Converter Convert epoch timestamps to dates and back, any time zone.
Common conversions
Need to open an API's JSON array in Excel? Use JSON to CSV. Importing spreadsheet data into code? Use CSV to JSON.
Found a number like 1700000000 in a log file? The Unix Timestamp Converter turns it into a date in any time zone.
FAQ
Why does Excel show garbled characters in my CSV?
Downloaded CSV files include a UTF-8 BOM so Excel detects the encoding. If you still see garbled text, use Excel's "From Text/CSV" import and choose UTF-8.