How to Use
Encode:Select the “Encode → Base64” tab, enter plain text, and get the Base64-encoded result.
Decode:Switch to the “Decode ← Base64” tab, paste a Base64 string, and get the decoded text.
Use the Copy button to copy the result to your clipboard.
What Is Base64?
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It is commonly used for embedding images in HTML/CSS, encoding file attachments in emails, storing binary data in JSON, and transmitting data over media designed to handle textual data.
Base64 uses 64 characters (A-Z, a-z, 0-9, +, /) and the = sign for padding. It increases data size by approximately 33%.
Frequently Asked Questions
Is Base64 encryption?
No. Base64 is an encoding, not encryption. Anyone can decode Base64 instantly. Do not use it to protect sensitive data.
Why does Base64 output end with = signs?
The = padding is added to make the output length a multiple of 4. It is a standard part of the Base64 specification.
Can I encode images with this tool?
This tool handles text. For image-to-Base64 conversion, you would need a file reader. A dedicated image-to-Base64 tool is planned.