Base64 Encoder/Decoder
Encode and decode text or files to Base64
Frequently Asked Questions
What is Base64 encoding used for?
It's used to convert binary data (like images or bytes) into a text format that can be safely transmitted over protocols that only support text (like HTTP or Email).
Is Base64 a form of encryption?
No. It is an encoding scheme. Anyone can decode Base64 data easily; it provides no security or secrecy.
Can I convert images to Base64?
Yes. Upload an image to our tool to get its Base64 data URI, which
you can use directly in HTML image
tags.
Does Base64 increase file size?
Yes. Encoding data as Base64 typically increases the size by about 33% compared to the original binary data.
Can I decode Base64 back to text?
Absolutely. Our tool supports both encoding (Text to Base64) and decoding (Base64 to Text).
What is 'URL Safe' Base64?
It's a version of Base64 that avoids characters like +
and / which have special meanings in URLs, replacing them with
- and _.
Is it safe to encode my passwords in Base64?
Only for transmission in specific protocols (like Basic Auth headers), but never for storage. Always use hashing (like SHA-256) for storing passwords.
Does the tool support Unicode/UTF-8 characters?
Yes. Our encoder correctly handles international characters and emojis by using UTF-8 encoding before Base64 conversion.
What is a Data URI?
A Data URI allows you to embed files (like images) directly into your HTML/CSS code using their Base64 representation.
Is there a limit to the size of text I can encode?
There is no hard limit, but browser memory might be an issue for extremely large files (50MB+).