Base64 Encode / Decode
Encode text to Base64 or decode Base64 back to text. Uses UTF-8, so accented characters and emoji round-trip correctly. Processed locally.
- Runs entirely in your browser
- No sign-up, no watermark
- Free and unlimited
🔒 Your file stays on your device
How to use Base64 Encode / Decode
- 1
Open Base64 Encode / Decode and paste or type your text into the input box.
- 2
Adjust any options to match what you need.
- 3
The result updates instantly below — copy it with one click.
What you get
- Encode and decode
- UTF-8 safe (accents, emoji)
- Local, no upload
What happens to your files
This tool runs entirely in your browser. The file you choose is read into memory, processed on your device, and offered back as a download. Nothing is uploaded and nothing is kept once you leave the page.
There is no account, no email, no watermark and no daily limit. Come back whenever you need it.
Frequently asked questions
- Does this work for binary files?
- This tool handles text. For files, use a dedicated file-to-Base64 tool — encoding large binaries as text in a browser box is impractical.