Compare Code Output Between Runs
When debugging or testing, comparing output between runs shows exactly what changed. Paste both outputs here to see the diff.
How to do this
Run your code and copy the output
Paste as Text A
Run again and copy new output
Paste as Text B
Paste text below and run the tool. Everything runs locally in your browser. No data is stored.
Compare Text Blocks
Paste two text blocks and instantly see which lines are common, which were added, and which were removed. A line-by-line diff tool.
Example
Input
apple banana cherry
Output
=== COMMON (2) === apple banana +++ ADDED (1) +++ grape --- REMOVED (1) --- cherry
How Compare Text Blocks Works
Paste two text blocks and instantly see which lines are common, which were added, and which were removed. A line-by-line diff tool.
This tool runs entirely in your browser — no data is sent to any server. Paste your text, click Run, and get your result instantly. You can also chain this tool with others using the pipeline feature: run Compare Text Blocks, then continue with a related tool to build a multi-step text workflow.
Related Tools
TextRefinery is a free, open-source text processing toolkit. Learn more about regular expressions and text processing on the web.
Example: Compare Code Output Between Runs
Input
Test 1: PASS Test 2: PASS Test 3: FAIL Test 4: PASS
Output
Test 1: PASS Test 2: PASS Test 3: PASS Test 4: PASS Test 5: PASS
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