ToolBox

Free Base64 Encoder/Decoder Online

Easily encode text or files to Base64, or decode Base64 back to its original format. Developer-friendly and secure.

Files never uploaded
Instant processing
100% free

Frequently Asked Questions

What is Base64 encoding?
Base64 is a way to represent binary data in an ASCII string format. It is commonly used to embed images directly into HTML/CSS files, or to safely transmit data across networks.
Can I convert images to Base64?
Yes! Use the file upload tab to select an image, PDF, or any other file. We will instantly encode it into a Base64 data URI that you can paste into your code.
Is there a file size limit?
Because processing happens in your browser's memory, very large files (e.g., over 50MB) might slow down or crash the tab. For standard images and documents, it works perfectly.

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