Base64 Encode/Decode
Encode or decode Base64 strings.
Processed locally — files never leave your device
* · Max 10MB
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*
How it works
Choose Encode or Decode mode
Paste your text or Base64 string
Get the result instantly
About Base64 Encode/Decode
Encode text to Base64 or decode Base64 strings back to plain text. Commonly used for data URIs, API authentication tokens, email encoding, and embedding data in URLs or JSON. Powered by JustUse.me — free, ad-free, and private. This tool runs entirely in your browser. Your files are never uploaded to any server.
Frequently asked questions
What is Base64 encoding?
Base64 converts binary data or text into ASCII characters. It's used to safely transmit data through systems that only support text, like email or URLs.
Is Base64 encryption?
No. Base64 is encoding, not encryption. Anyone can decode a Base64 string. It's for data formatting, not security.