Code Tools

Code Diff

Code Diff — diff two pieces of code and see exactly what changed. It runs entirely in your browser, so nothing is uploaded and it keeps working offline.

Client-sideRuns entirely in your browser — your data never leaves your device.

Code Diff is a free Code Tools utility that runs entirely in your browser — nothing you enter is uploaded.

Original / A
Changed / B
Differences



  
How to use Code Diff

  
    
      
  1. Enter or paste your text into the input field to begin.
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  2. Tune the Compare by control before you compare.
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  3. The result is computed live in your browser as you edit the input.
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  4. Use Copy to keep or reuse the result.
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About this tool

  
Everything Code Diff does happens on your own device. Code Diff is a free Code Tools utility that runs in your browser, doing its work on the input you provide without a backend.

  
It is designed to do one job well and stay out of your way. Your input never leaves the page, and no account or install is required.

  
Frequently asked questions

  

      
How do I use Code Diff?
Use Code Diff to compare your input without installing anything using the Compare by control; everything happens client-side.

      
Do I need an account for Code Diff?
No — Code Diff needs no account, sign-up or installation.

      
Does Code Diff upload my data?
No — Code Diff processes everything locally in your browser, so nothing you enter is uploaded or stored.

      
Does Code Diff work offline?
Once the page has loaded, Code Diff keeps working with no network connection.

  

  
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