Text Diff Tool
AICompare two texts and see differences highlighted line by line.
How it works
- 1
Paste your input
Paste the code, text, or value you want to process with Text Diff Tool.
- 2
Run the conversion
Use the tool controls to generate, convert, validate, or inspect the result instantly.
- 3
Copy output
Copy the final output and use it in your app, script, or workflow.
Common use cases
Simple change
Text A: "Hello World" Text B: "Hello Earth"
Multi-line config
Text A: "port=3000\nhost=localhost" Text B: "port=8080\nhost=0.0.0.0"
About This Tool
Paste two texts side by side and instantly see the differences highlighted at both the line and character level. Supports side-by-side and unified diff views. Uses a minimal diff algorithm to produce clean, readable output.
Ideal for comparing code revisions, config files, API responses, and any two pieces of text.
More examples
Examples
Simple change
Input
Text A: "Hello World" Text B: "Hello Earth"
Output
Line 1: "World" → "Earth" highlighted in red/green
Multi-line config
Input
Text A: "port=3000\nhost=localhost" Text B: "port=8080\nhost=0.0.0.0"
Output
Line 1: 3000 → 8080, Line 2: localhost → 0.0.0.0
Frequently Asked Questions
- What diff algorithm is used?
- This tool uses a minimal edit distance (Myers) algorithm to compute the smallest set of changes between two texts.
- Can I compare files?
- You can paste file contents into the two text areas. Direct file upload comparison may be added in the future.
- Does it show character-level changes?
- Yes. Within changed lines, individual character-level differences are highlighted in a darker shade to show exactly what changed.