Base64 Tools

Bas64 Decoder

Bas64 Decoder decodes Base64 back to UTF-8 text 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.

Bas64 Decoder is a free Base64 Tools utility that runs entirely in your browser — nothing you enter is uploaded.

Input
Output



  
How to use Bas64 Decoder

  
    
      
  1. Enter or paste your text into the input field to begin.
    2. 
      
  2. Use the Mode setting to control the result.
    3. 
      
  3. The result is computed live in your browser as you edit the input.
    4. 
      
  4. Use Copy to keep or reuse the result.
    5. 
  

  
About this tool

  
Everything Bas64 Decoder does happens on your own device. Bas64 Decoder converts between raw data and Base64 in your browser, handling text or files locally.

  
Binary-safe handling means images and other files survive the round trip intact. It behaves the same on desktop and mobile, with nothing stored remotely.

  
Frequently asked questions

  

      
How do I use Bas64 Decoder?
Bas64 Decoder runs entirely on your device: add your input using the Mode control, and it decodes it locally in real time.

      
Is Bas64 Decoder free to use?
Yes — Bas64 Decoder is completely free, with no usage limits.

      
Is my input private in Bas64 Decoder?
Yes — your input never leaves your device; Bas64 Decoder does all the work in your browser.

      
Is Base64 in Bas64 Decoder URL-safe?
Bas64 Decoder uses standard Base64 by default and runs locally, so your data is never sent anywhere.

      
Can I use Bas64 Decoder without a connection?
Yes — after the first load Bas64 Decoder runs entirely offline.

  

  
Related base64 tools