Base64 encoder and decoder
Encode UTF-8 text as Base64 and decode valid Base64.
Your files are processed here, on your device
We do not send your file or text contents to a processing server. No account is needed and there is no daily operation quota. Individual tools have size limits to protect your device’s memory.
A connection is needed to load the site and its resources. Hosting may receive technical visit data. Favorites store only tool identifiers in this browser.
How we handle your data →How to use this tool
- Choose Encode for text or Decode for standard Base64.
- Paste the full contents and retain any = padding.
- Check accents and line breaks in a round trip.
An example you can verify
Encode UTF-8 text or recover text from standard Base64.
Example input
Hello
Expected result
SGVsbG8=
Base64 is reversible and does not protect secrets. Use Image to Base64 for an image file.
Settings and limits
Choose encoding or decoding. Standard padded Base64 and UTF-8 text are used, including accents and emoji.
Frequently asked questions
Does Base64 protect my data?
No. It is reversible encoding, not encryption. Binary files, URL-safe Base64 and non-UTF-8 data are not supported.