Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 back to readable text, with full support for special characters and emoji.
Runs entirely in your browser — your files are never uploaded to a server.
This tool runs entirely in your browser. Your text is never uploaded to our servers.
How It Works
1. Choose Your File
Drag & drop or select the file you want to work with.
2. Processed in Your Browser
Everything happens locally on your device — your file is never uploaded anywhere.
3. Download Your Result
Get your finished file instantly, ready to save or share.
Frequently Asked Questions
Does this support special characters and emoji?
Yes — encoding and decoding are Unicode-safe, so accented letters, symbols, and emoji all work correctly.
What's the difference between encoding and decoding?
Encoding converts readable text into Base64; decoding converts Base64 back into its original text.
Can I swap my input and output?
Yes, use "Swap Input/Output" to quickly reverse the two fields.