computing tools
Base64 Encoder & Decoder
Convert UTF-8 text to and from Base64.
Browser-only computing
Enter your data
Encoding changes representation; it does not encrypt or protect the content.
SGVsbG8g8J+MjQ==How this tool works
Base64 represents bytes as printable text; it does not encrypt or protect data.
Privacy and limitations
Your entries and results stay in this browser. Check important results against the rules, records or systems that govern your situation.
Clear answers
Frequently asked questions
What does the Base64 converter do?
Convert UTF-8 text to and from Base64.
How does the Base64 converter work?
Base64 represents bytes as printable text; it does not encrypt or protect data.
What can I learn from the Base64 converter?
It shows how the entered values or choices produce the result. Change one input at a time to compare outcomes and understand the underlying rule.
Does MW SysArc receive or store what I enter?
No. The calculation runs locally in your browser. MW SysArc does not receive or store your calculation inputs.
How should I use the result?
Use the result as a practical reference and review the explanation on this page when exact counting conventions matter.
Last reviewed 2026-07-14. Calculations tested 2026-07-14.