Base64 Encoder/Decoder
Free online Base64 encoder and decoder tool. Encode and decode text, files, and images to Base64 format with ease. Pure client-side processing ensures complete data security and privacy.
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Download FileAbout Base64
What is Base64?
Base64 is a group of binary-to-text encoding schemes that represent binary data in an ASCII string format by translating it into a radix-64 representation.
Common Uses
- Email transmission (MIME)
- Transmitting data in URLs
- Embedding images in HTML/CSS (Data URI)
How it Works
The Base64 index table consists of: A-Z, a-z, 0-9, +, /.
Security
Base64 is an encoding scheme, NOT an encryption algorithm. It can be easily decoded and should not be used for securing sensitive data.
Features
- Encoded data size increases by 33% (since every 6 bits of binary data become 8 bits of ASCII)
- Safe for use in URLs
- Safe for transmitting binary data
- Suitable for scenarios where binary data needs to be sent over text-based protocols