Free Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 strings instantly. 100% free, private, browser-based.
Frequently Asked Questions
What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It is commonly used to embed images in HTML/CSS, transmit data in URLs, and encode email attachments.
Is my data secure?
Yes. All encoding and decoding happens entirely in your browser. No data is sent to any server.
Can I encode files?
This tool encodes and decodes text. For file encoding, copy the file content as text first.
Is Base64 encryption?
No. Base64 is an encoding scheme, not encryption. It does not provide any security — anyone can decode Base64 data.
About Base64 Encoding
Base64 encoding converts binary data into a set of 64 printable ASCII characters. It is used extensively in web development for embedding images in CSS, encoding API keys, and transmitting binary data over text-based protocols like JSON and XML. This tool supports full UTF-8 text encoding and decoding.