Encode & Decode Base64

Text, URLs, and files — instantly in your browser. Zero data leaves your device.

Input

Output

Recent History

No history yet. Start encoding or decoding!

Advanced Settings

Output Format

Base64 Variant Line Break Every

chars (0 = none)

Include Data URI prefix

Trim whitespace before decode

Performance

Use Web Worker

File Chunk Size

bytes

History & Storage

Save history

Max history items

Calculating…

Danger Zone

Permanently delete all stored data and reset settings to defaults.