Text & Code Tools
Test regex, compare text, write markdown, and measure string stats without uploading documents. These tools stay local so logs, patterns, and drafts remain private while you iterate.
7 tools in this category · 91 total on DevTooKit · local-first, no upload
Tools in Text & Code
- Regex TesterTest JavaScript regular expressions with live match highlighting.
- Diff CheckerCompare two text blocks side-by-side with character-level diff.
- Markdown PreviewerWrite Markdown on the left, see rendered HTML on the right.
- Lorem Ipsum GeneratorGenerate placeholder text by paragraphs, sentences, or words.
- Text StatisticsCount words, characters, sentences, paragraphs and reading time.
- Character CounterLive character, word and line count for any input.
- String ReverserReverse text by characters, words, or lines.
FAQ — Text & Code
Which regex flavor is used?
The regex tester uses JavaScript (ECMAScript) via the browser engine.
Is diffing private?
Yes — both sides of a diff stay in your browser tab.