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Diff Checker
Paste an original and a changed version to see exactly what changed, by line, word or character.
Free, no sign-up. Runs in your browser: nothing is uploaded.
How to use Diff Checker
- Paste the original text.
- Paste the changed text.
- Review the highlighted changes.
Features
- Line, word or character mode
- Ignore whitespace and case
- Added and removed counts
Private by design
Everything you type is calculated by your browser on this device. Nothing is sent to openWorkstand or anyone else, so the Diff Checker is safe for private and work data, and it keeps working offline once the page has loaded. How local processing works
When to use the Diff Checker
- Compare two versions of a text.
- Review configuration changes.
- Spot changes in a contract.
Frequently asked questions
Is my data uploaded anywhere?
No. This tool runs entirely in your browser. Nothing you type or open is sent to a server, so it is safe for private and work data, and it keeps working offline once the page has loaded.
Step-by-step guides
- How to format SQLTurn one-line SQL into readable, consistently indented queries, choose the right dialect, and follow a few conventions that make reviews easier.
- How to test a regexBuild and debug JavaScript regular expressions with live highlighting, capture groups, flags and replacement previews, plus patterns for everyday tasks.
Keep working with the result
openWorkstand also includes a free workspace with documents, spreadsheets, tasks, projects and a calendar that save to a folder on your computer.
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