Base64 Encoder Decoder
Encode text to Base64 or decode Base64 strings.
What Base64 is and is not
Base64 represents binary or text data using 64 safe characters (A–Z, a–z, 0–9, + and /). It is used in email attachments, data URLs and some API headers. It increases size by about one third.
Important: it is not encryption
Anyone can decode Base64, so never use it to hide passwords or personal data. For secrecy use real encryption.
Typical uses
- Embedding small images directly in HTML or CSS.
- Sending binary data in JSON.
- Reading values from basic authentication headers while debugging.
Troubleshooting
Padding with "=" at the end is normal. Text containing non-English characters should be converted as UTF-8 before encoding to decode correctly.
Further reading from trusted sources
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