What is Base64 encoding?

Base64 is a binary-to-text encoding scheme that represents binary data using 64 printable ASCII characters. It is widely used for embedding binary data in HTML, CSS, JSON, and email.

When should I use Base64 encoding?

Use Base64 when you need to embed binary data (images, files) in text-based formats like JSON or XML, or when transmitting data over protocols that don’t support binary.

Does Base64 make data secure?

No. Base64 is encoding, not encryption. Encoded data can be trivially decoded by anyone. Use it for compatibility, not security.

What is the size overhead of Base64?

Base64 increases data size by approximately 33%.

Is Base64 the same as encryption?

No. Base64 is a lossless encoding format. Anyone can decode a Base64 string without a key.

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Frequently Asked Questions

What is Base64 encoding?: Base64 is a binary-to-text encoding scheme that represents binary data using 64 printable ASCII characters. It is widely used for embedding binary data in HTML, CSS, JSON, and email.
When should I use Base64 encoding?: Use Base64 when you need to embed binary data (images, files) in text-based formats like JSON or XML, or when transmitting data over protocols that don’t support binary.
Does Base64 make data secure?: No. Base64 is encoding, not encryption. Encoded data can be trivially decoded by anyone. Use it for compatibility, not security.
What is the size overhead of Base64?: Base64 increases data size by approximately 33%.
Is Base64 the same as encryption?: No. Base64 is a lossless encoding format. Anyone can decode a Base64 string without a key.