Base64 Tool
Encode or decode Base64 strings and files. Supports text, images, and binary files. Fast, private, and secure browser-based t
Your files never leave your device. Processed locally. 100% private.
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How To Use Base64 Tool
Complete your task perfectly in just three straightforward steps.
Choose mode
Select Encode or Decode.
Input data
Paste text, or upload a file to encode/decode.
Copy or download
Copy the result to clipboard or download as a file.
FAQ
Everything you need to know about the Base64 Tool.
What types of data can be encoded?
Plain text, JSON, XML, images, and any binary file.
What is Base64 used for?
Embedding images in HTML/CSS, encoding binary data in JSON APIs, and email attachments.
Is my file uploaded?
No. Everything runs locally in your browser.
Is there a size limit?
Free up to 200 MB, Pro up to 10 MB.
Is URL-safe Base64 supported?
Yes — toggle between standard and URL-safe (RFC 4648) encoding.
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