Text Diff Checker
Compare two texts and find differences
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Old
New
Content
1
1
{
2
- "name": "example",
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- "version": "1.0.0"
2
+ "name": "example-app",
3
+ "version": "1.0.1",
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+ "private": true
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}
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Install the DailyDevTools extension — access all tools from your browser toolbar
What is Text Diff Checker?
Comparing two versions of text manually is slow and error-prone. DailyDevTools' Text Diff Checker highlights every addition, deletion, and unchanged line between two text blocks using a side-by-side or unified diff view. It works for any text — code, prose, configuration files, JSON, SQL, or log output — and runs entirely in your browser so sensitive content never leaves your device.
How to use Text Diff Checker
- 1Paste your original text in the left panel and the modified text in the right panel
- 2Differences are highlighted instantly: green for additions, red for deletions
- 3Switch between side-by-side view and unified diff view using the toggle
- 4Use the character-level diff toggle to highlight individual changed characters within lines