Base64 Tools

B64 Converter

B64 Converter encodes text to Base64 and switches direction with one toggle. It runs in your browser with nothing uploaded to any server.

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

B64 Converter is a free Base64 Tools utility that runs entirely in your browser — nothing you enter is uploaded.

Input
Output



  
How to use B64 Converter

  
    
      
  1. Drop your text into the field at the top of B64 Converter.
    2. 
      
  2. Adjust the Mode option to match what you need.
    3. 
      
  3. Watch the output update instantly while you adjust the text.
    4. 
      
  4. When it looks right, Copy to save it.
    5. 
  

  
About this tool

  
There is no server behind B64 Converter. B64 Converter converts between raw data and Base64 in your browser, handling text or files locally.

  
Because it runs locally, even sensitive payloads never leave the page. No data is sent anywhere, so it stays fast and private by default.

  
Frequently asked questions

  

      
What does B64 Converter do?
Use B64 Converter to convert your input without installing anything using the Mode control; everything happens client-side.

      
Is B64 Converter free to use?
Yes — B64 Converter is completely free, with no usage limits.

      
Does B64 Converter upload my data?
No — B64 Converter processes everything locally in your browser, so nothing you enter is uploaded or stored.

      
Is Base64 in B64 Converter URL-safe?
B64 Converter uses standard Base64 by default and runs locally, so your data is never sent anywhere.

      
Does B64 Converter work offline?
Once the page has loaded, B64 Converter keeps working with no network connection.

  

  
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