Does image-to-Base64 include a data URI prefix?

Choose raw Base64 or a full Data URL such as `data:image/png;base64,...` for direct use in HTML or CSS.

Why does Base64 decoding fail?

Common causes are stray whitespace, missing `=` padding, or pasting URL-safe variants (-/_) as standard Base64.

Can I preview decoded binary data?

Image payloads preview in the page; other content downloads as a file for your local apps to open.

Home ToolboxBase64 Encoder/Decoder

Base64 Encoder/Decoder

Convert text or images to Base64 and vice versa, 100% client-side with preview.

Encode and decode text or images to Base64 in the browser. Features UTF-8 safe conversion for strings, and supports uploading local files to output Base64 DataURLs or decoding Base64 back into downloadable files.

How to use

1Text Mode: Type text in the input box to auto-generate Base64, or paste Base64 on the right and click decode
2File Mode: Drag or click to upload any file/image. The tool outputs its Base64 DataURL for easy copying
3File Decode: Paste a Base64 string into the panel. The tool previews it (if an image) and lets you download it as a binary file

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FAQ

Does image-to-Base64 include a data URI prefix?: Choose raw Base64 or a full Data URL such as `data:image/png;base64,...` for direct use in HTML or CSS.
Why does Base64 decoding fail?: Common causes are stray whitespace, missing `=` padding, or pasting URL-safe variants (-/_) as standard Base64.
Can I preview decoded binary data?: Image payloads preview in the page; other content downloads as a file for your local apps to open.