Encode greeting
Input
hello
Output
aGVsbG8=
KoguNavi tool
Base64 Encode / Decode
Convert plain text to Base64, or decode Base64 back to readable Unicode text without leaving the page.
Local in browser
Runs in your browser for this tool.
Current tools are designed to run in your browser. As a general habit, avoid pasting passwords, private keys, or production secrets into any website.
What it helps with
- Decode small tokens
- Encode text snippets
- Inspect copied Base64
How to use
- Paste plain text or Base64 text into the input area.
- Choose Encode or Decode depending on the conversion you need.
- Check the output, then copy it or clear the workspace.
Examples
Decode greeting
Input
S29ndU5hdmk=
Output
KoguNavi
Good to know
- Designed for text snippets, not large binary files in the MVP.
FAQ
- Does this Base64 tool support Unicode?
- Yes. It is built for Unicode text, including Japanese, CJK text, emoji, and accented characters.
- What happens with invalid Base64?
- Decode mode shows a readable error instead of crashing the page.
- Is this for binary files?
- No. This version is intended for text snippets, not large binary files.
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