What is Base64 encoding?
Base64 is an encoding scheme that converts binary data into a text format using 64 ASCII characters (A–Z, a–z, 0–9, +, /). It is widely used in web development to embed images in CSS, encode email attachments, and transmit data in JSON payloads.
Encoding increases the data size by approximately 33%, but ensures safe transmission over text-based protocols. Base64 is not encryption — it is purely an encoding scheme and can be decoded by anyone.
All encoding and decoding is performed locally in your browser. No data is ever sent to our servers.