Base64 Encode
Encode text to Base64 format instantly. Free, no signup required.
Text Input
Base64 Output
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How to Encode to Base64
- Paste or type your text in the input area above.
- Click "Encode" to convert it to Base64 format.
- Copy the Base64 output for use in your code, emails, or data URLs.
About Base64 Encoding
Base64 is a binary-to-text encoding scheme that represents binary data as ASCII characters. It is commonly used in email attachments (MIME), data URLs, storing complex data in XML/JSON, and API authentication headers.
Common Use Cases
- Encoding data for use in HTML data URIs (e.g., inline images)
- Preparing binary data for JSON or XML payloads
- Creating HTTP Basic Authentication headers
- Encoding email attachments in MIME format
Frequently Asked Questions
Base64 converts binary data into a text format using 64 printable ASCII characters (A-Z, a-z, 0-9, +, /). It's used when binary data needs to be transmitted over text-only channels.
No, Base64 is an encoding, not encryption. Anyone can decode Base64 text. It is not a security measure — use it only for data transport, not for protecting sensitive information.
Base64 encoding increases data size by approximately 33%. For example, 3 bytes of input become 4 bytes of Base64 output.
Your data is processed on our server and immediately discarded. We never store your content and all transfers use SSL encryption.
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