What is Base64 used for?

Encoding binary data (images, files) as ASCII text so it can be safely embedded in URLs, JSON, emails, HTML, or CSS data URIs.

Is Base64 encryption?

No. Base64 is encoding, not encryption. Anyone can decode it trivially. Do not use Base64 to hide secrets.

Base64 uses 4 characters to represent every 3 bytes of input, making the output about 33% larger.

Yes. The tool accepts file uploads and outputs `data:image/...;base64,...` that you can paste directly into HTML or CSS.

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What is Base64 used for?: Encoding binary data (images, files) as ASCII text so it can be safely embedded in URLs, JSON, emails, HTML, or CSS data URIs.
Is Base64 encryption?: No. Base64 is encoding, not encryption. Anyone can decode it trivially. Do not use Base64 to hide secrets.
Why is Base64 output larger than input?: Base64 uses 4 characters to represent every 3 bytes of input, making the output about 33% larger.
Can I encode images as data URIs?: Yes. The tool accepts file uploads and outputs `data:image/...;base64,...` that you can paste directly into HTML or CSS.