Compare, transform, and measure

Text Tools

Seven local tools handle common editorial and developer text jobs with Unicode-aware counting and explicit transformation behavior.

Available now

Working text tools

Each tool opens directly and states where its processing happens.

Regex Tester

Test regular expressions with matches and capture groups.

Word Counter

Count words, characters, sentences, and reading time.

Text Diff

Compare two texts line by line with additions and removals.

Case Converter

Convert prose and identifiers between common letter cases.

Line Sort and Deduplicate

Sort, reverse, trim, filter, and deduplicate text lines.

Slug Generator

Turn titles into clean URL slugs with configurable separators.

Markdown Preview

Render CommonMark-style Markdown with raw HTML disabled.

Which tool should you choose?

Need	Choose	Reason
Match a pattern	Regex Tester	Runs JavaScript RegExp with a timeout.
Measure content	Word Counter	Counts words, graphemes, and UTF-8 bytes.
Compare revisions	Text Diff	Marks inserted and removed lines.
Normalize content	Case Converter or Line Tools	Produces deterministic transformed text.