Browse for a file or drag and drop any file here to encode it to Base64.
Base64 Encoder & Decoder
Encode and decode Base64 in real-time, with support for files and UTF-8.
About the Base64 Encoder & Decoder
We built this tool to be a fast and easy way to handle Base64 conversions. Base64 is a way to represent binary data, like images or files, as plain text. This is super useful for sending data over systems that are designed to only handle text. Our tool lets you both encode your text or files into Base64 and decode Base64 strings back into their original form, all securely in your browser.
How to Use the Tool
- To Encode: Simply type or paste your text into the "Decoded (Plain Text)" box on the left. The Base64 version will appear instantly on the right.
- To Decode: Type or paste your Base64 string into the "Encoded (Base64)" box on the right. The original text will appear on the left.
- To Encode a File: Drag and drop any file onto the upload area, or click it to browse your computer. The Base64 representation of that file will appear in the right-hand box.
- Use the "Copy" buttons to copy the content of either box, and "Clear" to start over.
Frequently Asked Questions
What is Base64 encoding?
Base64 is a method for converting binary data (like the data that makes up a file) into a sequence of text characters. It uses a set of 64 common characters that are safe to use in all text-based systems. This is why it's so common for sending email attachments or for embedding small images directly into CSS or HTML code.
Is Base64 a form of encryption?
No, it is not. This is a very important distinction. Base64 is an encoding, not an encryption. It's a way to represent data, not to secure it. Anyone who has the Base64 string can easily decode it back to the original. It should never be used to protect sensitive information.
How does this tool handle special characters like emojis?
Our tool is built to correctly handle UTF-8, which is the standard for representing all characters, including emojis and accented letters. We use modern browser APIs (`TextEncoder` and `TextDecoder`) to ensure that all characters are encoded and decoded without any data loss, which can be a problem on older, simpler tools.
Can I encode large files with this tool?
Yes, but with a practical limit. Because the tool runs entirely in your browser, encoding very large files (e.g., over 50 MB) can consume a lot of memory and may make your browser slow or unresponsive. The tool is best suited for text and small-to-medium-sized files.
Is the data I enter kept private?
Yes, absolutely. The entire encoding and decoding process happens on your own computer, within your web browser. None of your text or files are ever sent to our servers. Your data remains completely private and secure.