Code Tools

Code Compare

Code Compare — compare two code snippets and highlight added and removed lines. It works entirely in your browser, with nothing uploaded to any server.

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

Code Compare 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 Compare

  
    
      
  1. Enter or paste your text into the input field to begin.
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  2. Set Compare by so the output fits your use case.
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  3. Code Compare updates the output automatically as you type.
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  4. When it looks right, Copy to save it.
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About this tool

  
Code Compare is a static, client-side tool with no backend. Code Compare handles your input locally and returns the result instantly, with no sign-up.

  
It is designed to do one job well and stay out of your way. It behaves the same on desktop and mobile, with nothing stored remotely.

  
Frequently asked questions

  

      
What is Code Compare for?
Use Code Compare to compare your input without installing anything using the Compare by control; everything happens client-side.

      
Does Code Compare cost anything?
No — Code Compare is completely free, with no sign-up and no hidden limits.

      
Is my input private in Code Compare?
Yes — your input never leaves your device; Code Compare does all the work in your browser.

      
Can I use Code Compare without a connection?
Yes — after the first load Code Compare runs entirely offline.

  

  
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