Base64 Encode and Decode
Convert text to Base64 and back, with full UTF-8 support and an optional URL-safe mode. Everything runs in your browser.
Result
Your text stays in this browser tab. Nothing is sent to a server.
How to use it
- 1
Choose a direction
Text to Base64, or Base64 back to text.
- 2
Paste your input
Add the text or Base64 string.
- 3
Copy the result
Copy the converted output.
Questions about base64 encode and decode
Does it handle accents and emoji?
Yes. Text is encoded as UTF-8, so accented letters and emoji survive the round trip.
What is URL-safe Base64?
A variant that swaps + and / for - and _ so the result is safe inside a web address.
Is my text sent anywhere?
No, the conversion happens on your device.