Base64 encode mode
EncodeDecode
Disclaimer
We do not take any responsibility for the encoded or decoded data or its usage. All operations are performed on your device, and the application of the output is solely at your discretion and risk.
Base64 Encoder & Decoder
Encode plain text to Base64 or decode Base64 strings back to text. Free, fast, and fully client-side — your data never leaves your browser.
Frequently Asked Questions
What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format by translating it into a radix-64 representation. It is commonly used to encode data for storage or transmission.
How does Base64 work?
Base64 works by taking binary data, breaking it into 3-byte (24-bit) chunks, and remapping these into 4 new 6-bit chunks. Each 6-bit chunk maps to one of 64 ASCII characters (A-Z, a-z, 0-9, +, /).
Is my data secure when using this Base64 tool?
Yes. All encoding and decoding operations are performed locally in your browser. Your data is never sent to any server.