Base64 Converter
Encode text, images, or files to Base64 and decode Base64 strings back to original format.
Understanding Base64 Encoding
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used when there's a need to encode binary data that needs to be stored and transferred over media designed to deal with textual data.
Web Development
Embed images directly in HTML/CSS using data URLs to reduce HTTP requests.
Data Transmission
Send binary data over text-only protocols like JSON, XML, or email.
FAQ
What is Base64 used for?
To encode binary data (images, files) into ASCII text for transmission over text-based protocols.
Does Base64 increase file size?
Yes, by about 33% because every 3 bytes become 4 characters.
Is Base64 secure?
No, Base64 is encoding, not encryption. Anyone can decode it.
What does "=" at the end mean?
It's padding. Base64 works with groups of 3 bytes; padding is added when the input length isn't a multiple of 3.