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Text tools
Diff, word count, JSON, case conversion, and find and replace. Every one runs on this device.
No tool by that name. Try merge, HEIC, compress, or OCR.
- Diff checker Compare two texts and see what changed.
- Word counter Words, characters, and reading time.
- Case converter UPPER, lower, Title, camelCase, snake_case.
- Remove duplicates Deduplicate a list, and sort it too.
- JSON formatter Format, minify, and validate JSON.
- Find and replace Bulk replace, with regex if you need it.
Small tools, used constantly
These are the utilities that get reached for several times a day and never quite justify installing anything. Compare two drafts. Count words against a limit. Fix the case of a heading that arrived in caps. Strip duplicates out of a merged list. Format an API response so it can be read. Replace something across four hundred lines at once.
Every one runs in the browser tab, which matters more here than it first appears. The things people paste into text tools are frequently the things they should be most careful with: two drafts of a contract being negotiated, a JSON response containing API keys, a list of customer email addresses merged from two exports. Pasting those into a website means handing them to somebody else's server. Here the text stays on your device, and the Network panel in your developer tools will confirm it.
Which one you need
Diff checker when you need to know what changed between two versions and cannot trust yourself to spot it by eye. Word counter when there is a limit to hit, with character counts shown both with and without spaces because different systems mean different things. Case converter for headings in the wrong case and for moving identifiers between camelCase, snake_case, and kebab-case.
Remove duplicate lines for lists merged from more than one source: turn on ignore case and trim whitespace, which are the two settings that catch the duplicates people miss. JSON formatter for reading an API response and for finding the misplaced comma that made a file invalid. Find and replace for bulk edits, with regular expressions when the thing you are matching has a shape rather than a fixed value.
Everything in text tools
- Diff Checker: Compare two texts and see what changed.
- Word Counter: Words, characters, and reading time.
- Case Converter: UPPER, lower, Title, camelCase, snake_case.
- Remove Duplicate Lines: Deduplicate a list, and sort it too.
- JSON Formatter: Format, minify, and validate JSON.
- Find and Replace: Bulk replace, with regex if you need it.