Does decode mode accept URL-safe Base64?
Yes. Enable URL-safe mode to decode values that use "-" and "_" characters.
Ready to Use
Base64 Encode / Decode
Convert UTF-8 text to or from Base64 with one mode switch. The tool supports standard and URL-safe alphabets, trims surrounding whitespace during decode, and reports invalid Base64 input clearly.
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Tool Workspace
File Transform Template
Upload/convert-style experience with deterministic output and download-friendly rendering.
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Result
Enter text to encode or decode it with Base64.
Popular use cases
- Decode a Base64 API token payload back into readable text.
What to expect
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