Base64 a string — both directions
Text to Base64 and back, with proper UTF-8 handling so emoji don't come out as confetti.
Runs on your device
No uploads, ever
Free, no account
How it works
- Choose the direction
Encode for text to Base64; decode for the reverse. The tool auto-detects the sensible one.
- Paste the input
Unicode, emoji, accented names — all handled correctly.
- Copy the result
Also available in URL-safe Base64 if you're feeding it into a query string.
Questions people actually ask
Why is Base64 longer than the original?
It needs about 33% more characters — that's the cost of representing any bytes with 64 safe symbols. It's encoding, not compression.
Is Base64 encryption?
Emphatically no. It hides nothing from anyone who cares to look. Passwords and secrets belong in a password manager, not in Base64.