Developer · free local utility
Convert Unicode text to standard Base64 and decode standard Base64 back to strict UTF-8 text.
Paste text or Base64, then choose the direction. Whitespace inside Base64 input is ignored.
This text utility does not process files, URL-safe Base64 variants, or arbitrary binary that is not valid UTF-8 text.
Always verify the result in the system where you will use it. The page intentionally avoids accounts, uploads, and claims that go beyond the calculation it performs.
No. Anyone can decode it. Do not use Base64 to protect passwords, tokens, or confidential information.
Yes. Plain text is converted through UTF-8 before Base64 encoding and decoded back as strict UTF-8.
No. This page is deliberately limited to text. Binary data that is not valid UTF-8 will return an error.