Free Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 back to text. No login required — everything runs in your browser.
Plain Text
Base64 Output
How It Works
Paste or Type
Enter text to encode, or paste Base64 to decode. Or upload a file.
Click Convert
Hit Encode or Decode. The result appears instantly in the other panel.
Copy Result
Copy the output to your clipboard with one click. Nothing is stored.
Frequently Asked Questions
What is Base64?
Base64 is an encoding scheme that converts binary data into ASCII text. It's commonly used to embed images in HTML/CSS, send data in URLs, and encode email attachments.
Is Base64 encryption?
No. Base64 is encoding, not encryption. It converts data format but doesn't secure it. Don't use Base64 as a substitute for encryption.
Can I encode files?
Yes. Click "Encode a file instead" to upload a file. The file will be encoded to Base64 in your browser. Maximum file size is 10MB.
Is my data sent to a server?
No. All encoding and decoding happens in your browser. Your data is never transmitted anywhere.
Do I need an account?
No. All our tools are completely free with no login required.