Code Tools

Code Diff Tool

Code Diff Tool — a code diff tool that compares text by line, word, or character. 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 Diff Tool 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 Tool

  
    
      
  1. Drop your text into the field at the top of Code Diff Tool.
    2. 
      
  2. Tune the Compare by control before you compare.
    3. 
      
  3. The result is computed live in your browser as you edit the input.
    4. 
      
  4. Finish by choosing Copy to take the output with you.
    5. 
  

  
About this tool

  
Code Diff Tool is a static, client-side tool with no backend. Code Diff Tool is a free Code Tools utility that runs in your browser, doing its work on the input you provide without a backend.

  
Because it runs on your device, it is fast and private and works offline once loaded. It behaves the same on desktop and mobile, with nothing stored remotely.

  
Frequently asked questions

  

      
What does Code Diff Tool do?
Code Diff Tool runs entirely on your device: add your input using the Compare by control, and it compares it locally in real time.

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

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

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

  

  
Related code tools