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Base64 Encoder and Decoder Online Free
Encode text to Base64 or decode Base64 strings back to plain text. Commonly used in APIs (Basic Auth headers), email encoding, data URIs, and storing binary data in JSON or XML.
Frequently Asked Questions
What is Base64 encoding used for?
HTTP Basic Auth (username:password encoded in headers), embedding images as data URIs, storing binary data in text-based formats like JSON, and email attachments (MIME).
Does it support Unicode characters?
Yes. The encoder handles UTF-8 characters including accents, emoji, and non-Latin scripts.
Is Base64 a form of encryption?
No. Base64 is encoding, not encryption. It is easily reversible and provides no security. Never use Base64 alone to protect sensitive data.
Is my data sent to a server?
No. Uses browser's native btoa() and atob() functions.
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