Base64 Encode Online — Text & Files to Base64
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
This page opens the converter with Base64 encoding already selected — paste your text or drop a file, run it and the Base64 string is ready to copy.
Base64 encoding turns binary data into a safe set of 64 ASCII characters, which is how images get embedded as data URIs, attachments travel over email protocols and binary values end up inside JSON or XML.
The full tool also decodes Base64 and converts to hex or binary bits — everything runs locally in your browser, so your data never leaves your computer.
Example. The text Hi encoded as Base64 is SGk=.
Limit. An uploaded file larger than 20 MB is rejected.