Base64 Encoder / Decoder
Convert plain text or UTF-8 strings to Base64 and back. Handles large blocks of text without choking.
Plain text
Base64
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Frequently asked questions
What is Base64 encoding used for?+
Base64 converts binary or text data into plain text that's safe to embed in URLs, JSON, emails, or data URIs.
Does this tool support Unicode/UTF-8 text?+
Yes, both encoding and decoding correctly handle UTF-8 characters like emoji and accented letters.
Is my text sent to a server?+
No, encoding and decoding happen locally in your browser.