Encoding
Free Online Base64 Encoder & Decoder
UTF-8 safe Base64 encoding and decoding with optional URL-safe alphabet. Everything happens locally.
100% Client-Side. Your data is processed locally and is never sent to an ElDevo processing server.
Input
Output
Ctrl/Cmd + Enter to run · Esc to clear · Processing stays in your browser.
Advertisement
How to Use
- 1Choose Encode or Decode.
- 2Paste text or a Base64 value.
- 3Enable URL-safe mode when needed.
- 4Copy or download the result.
Features & Privacy Guarantee
- ✓ Unicode and UTF-8 support
- ✓ Encode and decode modes
- ✓ URL-safe Base64
- ✓ Download output
Search intent: Encode Unicode text to Base64 or decode Base64 back to text.
Technical Example
Input
ElDevo
Output
RWxEZXZv
Frequently Asked Questions
Is Base64 encryption?
No. Base64 is reversible encoding, not encryption.
Does it support Unicode?
Yes. Text is converted through UTF-8 bytes before encoding.
What is URL-safe Base64?
It replaces + and / with URL-safe characters and can omit padding.
Does decoding send my data anywhere?
No. Conversion runs entirely in the browser.