Base64 Image Decoder — Convert Base64 to Image Online, Free
Decode Base64 strings back to images. Paste a data:image/... string or raw Base64, and see the decoded image instantly. Useful for debugging data URIs and embedded images. 100% local.
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CommentsPaste a Base64 string (raw or with data: prefix) to see the decoded image. For debugging data URIs and embedded images.
What is Base64 Image Decoder?
Base64 image encoding converts binary image data into 64 ASCII-safe characters, commonly used to embed images directly in HTML (data:image/png;base64,...) or CSS. Decoding reverses the process — turning the Base64 string back into the original binary image for viewing, saving, or debugging.
How to decode a Base64 image
- 1Paste your Base64 string — with or without the data: prefix.
- 2The decoded image appears in the preview panel.
- 3Right-click → Save Image As to download.
Frequently Asked Questions
What is a Base64 image?
A Base64 image is binary image data encoded as a text string using the Base64 alphabet (A-Z, a-z, 0-9, +, /). It's commonly used as a data URI (data:image/png;base64,iVBOR...) to embed images directly in HTML or CSS without a separate file request.
When would I need to decode a Base64 image?
When you receive an image as a Base64 string (API response, clipboard paste, JSON payload) and you want to see it. Also useful for debugging — checking that a Base64 string actually represents the correct image.
Can I download the decoded image?
Yes — right-click the preview image and choose 'Save Image As'. The browser renders it as a standard image element, so all browser image features (download, copy, open in new tab) work.
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