Features
Encode any text string to Base64 format
Decode Base64 back to plain text
Full UTF-8 character support
URL-safe Base64 encoding option
Instant real-time conversion
Common Use Cases
- Encoding API authentication tokens
- Embedding data in URLs or HTML
- Debugging encoded strings in API responses
Frequently Asked Questions
What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that converts binary data into ASCII characters. It uses 64 characters (A-Z, a-z, 0-9, +, /) to represent data, making it safe for text-based protocols like email and HTTP.
Is Base64 encoding the same as encryption?
No. Base64 is an encoding, not encryption. It does not provide any security—anyone can decode Base64 data. Use it for data transport, not for protecting sensitive information.
Why does Base64 output look longer than the input?
Base64 encoding increases data size by approximately 33% because it represents 3 bytes of binary data as 4 ASCII characters.