Text Toolbox

Free, fast, no-upload online text processing toolbox

Count characters, words, lines, paragraphs and bytes for mixed CN/EN text.

Quickly convert text to uppercase, lowercase, title, sentence or tOGGLE case.

Reverse characters, words or lines in a single click.

Remove duplicate lines, sort, trim spaces and clean blank lines.

Convert simplified Chinese to traditional and back.

Encode and decode text as Base64 with full UTF-8 support.

Percent-encode and decode URLs or text.

Escape or unescape HTML special characters for embedding.

Compute the MD5 hash (hex) of text with UTF-8 support.

Format, minify and validate JSON with clear error messages.

Test regular expressions with match, replace and count, plus match positions.

Convert between Unix timestamps (seconds/ms) and date strings.

Convert numbers between bases 2-36 including binary and hex.

Generate random v4 UUIDs in bulk for ids and keys.

Generate strong random passwords with custom length and character sets.

Why Text Toolbox?

Covers common text, encoding and developer workflows

Every text is processed in your browser and never uploaded

No sign-up; open the page and start right away

Use it on your phone, tablet or desktop browser