Encode or decode text without sending tokens, configuration or pasted content to a server.
Base64 Encoder and Decoder
Base64 is encoding, not encryption. This tool supports standard and URL-safe Base64 for text content.
How to use this tool
- Paste text or Base64 into the local input.
- Choose the standard or URL-safe alphabet and any decoding whitespace rule.
- Encode or decode, then copy, download, swap or clear the local result.
Frequently asked questions
Is Base64 encryption?
No. Base64 changes how bytes are represented; it does not keep content secret.
Why is a decoded result only downloadable?
When decoded bytes are not valid UTF-8 text, the page avoids showing them as misleading text and offers a local binary download instead.