Base64 / Hex / Binary Multi-Coder
Convert text or binary files to Base64, Hexadecimal, Binary representation and back.
🔒 Processed entirely in your browser — nothing you enter here is ever uploaded.
The result appears on this page after you run the tool. Nothing you enter is uploaded.
Result
About this tool
Need to convert an image to a Base64 data URI for HTML/CSS embedding? Or do you need to decode a raw hexadecimal dump back into its original file? This multi-coder does it all offline.
Since all calculations are executed locally via JavaScript within your browser tab, your data never leaves your computer. This provides total safety for confidential configurations, API credentials, or private documents.
The tool features an interactive byte-to-bit alignment visualization that guides students and developers through base64 algorithms, alongside dynamic rendering support for decoded media files.
Example. The text Hi encoded as Base64 is SGk=.
Limit. An uploaded file larger than 20 MB is rejected.