Does it support Unicode characters?

Yes. The tool encodes Unicode text correctly using UTF-8 before Base64 encoding.

Is my data sent to a server?

No. All encoding and decoding runs securely in your browser without uploading.

Developer

Base64 Encode / Decode

Encode text to Base64 or decode Base64 back to plain text. Supports Unicode. Runs in your browser.

Plain text

Base64 output

Output appears here…

Uses the standard Base64 alphabet (RFC 4648). Unicode text is handled correctly via UTF-8 encoding.

PixTrimIO keeps PDF and image workflows fast, privacy-friendly, and browser-based. Privacy-first PDF and image tools that run entirely in your browser. Compress, merge, convert, crop, OCR, and edit files online for free without uploading.