Base64 Encoder
Encode any plain text to a Base64 string instantly. All processing happens in your browser.
The Base64 Encoder converts any plain text into a Base64-encoded string instantly.
Base64 is widely used for embedding binary data in text formats like HTML, CSS, JSON, and email attachments.
All processing happens entirely in your browser — no data is ever sent to our servers.
- 1Encoding images as data URIs for embedding in CSS/HTML
- 2HTTP Basic Authentication headers (encode username:password)
- 3Transferring binary data through text-based APIs
- 4Encoding JSON or XML payloads before transmission
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