Free Encoding & Decoding

Encode plain text or UTF-8 strings to Base64, and decode Base64 back to readable text — both on one page.

Percent-encode URL strings with encodeURIComponent or encodeURI, and decode them back — both modes on one page.

Encode text to Unicode escape sequences (\uXXXX), HTML numeric entities, or U+ code points — and decode them back.

Convert text to binary (01010100...) and hexadecimal, and decode binary or hex back to readable text — all 4 modes on one page.