Base64 Encoder and Decoder
Free online Base64 encoder and decoder. Instantly convert text to Base64 format or decode Base64 strings back to readable text.
Base64 Encoder / Decoder
What is Base64 Encoding?
Base64 is a binary-to-text encoding scheme that translates binary data into a radix-64 representation. By consisting only of standard ASCII characters (A-Z, a-z, 0-9, +, /), it ensures that data remains intact without modification during transport across systems that deal specifically with text.
Why use Base64?
- Data Embeds: Commonly used to embed image files or other binary assets directly inside HTML/CSS files.
- Email (MIME): Used extensively in email systems to attach non-text files safely.
- Data Serialization: Often used to encode JSON Web Tokens (JWT) or store complex data in URLs or cookies safely.
Is it secure?
No! Base64 is an encoding scheme, not an encryption mechanism. Anyone who intercepts a Base64 string can easily decode it back to the original text. You should never use Base64 to secure sensitive passwords or data without also applying actual encryption (like AES or RSA).