Base64 encode & decode
Text or files to Base64 and back, UTF-8 safe.
warming up the tool…
How it works
- 01Choose encode or decode.
- 02Paste text or drop a file.
- 03Copy the result.
Questions
›What is URL-safe Base64?
It swaps "+" and "/" for "-" and "_" and drops padding, so the result can sit in a URL without escaping.
›Is my data uploaded anywhere?
No. This tool runs entirely in your browser, and Rounder never sends what you type or drop in to a server, ours or anyone else's. Once the page has loaded, along with any AI model the tool uses, it even works offline.
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