Base64 Encoder/Decoder
Convert text to Base64 encoding or decode Base64 strings back to plain text.
🔒 Encode
Convert plain text to Base64 encoded string
0 characters
About Base64 Encoding
- • Converts binary data to ASCII text format
- • Commonly used for data URIs and email attachments
- • Increases data size by approximately 33%
- • Safe for transmission in text-only systems
Enter Text
Enter text to encode or a Base64 string to decode. Switch between modes using the toggle button above.
Understanding Base64 Encoding
What is Base64?
- Encoding Scheme: Converts binary data to ASCII text using 64 characters
- Character Set: Uses A-Z, a-z, 0-9, +, / and = for padding
- Size Impact: Increases data size by approximately 33%
- Common Uses: Data URIs, email attachments, API responses
- Safe Transport: Ensures binary data can be transmitted in text-only systems
Common Use Cases
- Embedding images in HTML/CSS with data URIs
- Encoding file attachments in emails
- Storing binary data in JSON or XML
- Transmitting data through text-based protocols
- Creating secure tokens and authentication strings
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