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Base64 Encoder & Decoder
Encode text or files to Base64 and decode Base64 back to text or a downloadable file. Handles Unicode correctly and supports the URL-safe variant.
Runs in your browser. Nothing is uploaded.
From the author
How to use the Base64 Encoder & Decoder
- Choose Text or File, then Encode or Decode.
- Type, paste, or drop your input. The result appears right away.
- Copy the result, or download the decoded file.
Questions
What is Base64 used for?
Base64 turns binary data into plain text so it can travel through systems built for text: email attachments, data URIs in web pages, JSON, and API tokens.
What is URL-safe Base64?
It swaps + and / for - and _ and drops the = padding, so the result can sit in a web address without being altered.
Is Base64 encryption?
No. Anyone can decode it. Use it for transport, never to hide information.