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Base64 to Image Converter

Decode Base64 strings to images — preview, inspect metadata, and download

Frequently asked questions

What is a Base64 image?

A Base64 image is a binary image file encoded as ASCII text. It is often embedded directly in HTML, CSS, or JSON as a Data URL (e.g. data:image/png;base64,...) to avoid separate file requests. This tool decodes it back to a viewable image.

Do I need the 'data:image/...;base64,' prefix?

No. This tool accepts both raw Base64 strings and full Data URLs. If you paste a raw string, the format is auto-detected from the binary signature (JPEG, PNG, GIF, WebP, etc.).

What image formats are supported?

PNG, JPEG, GIF, WebP, SVG, BMP, and ICO. The format is auto-detected from the Base64 header bytes so you do not need to specify it manually.

Is my data sent to a server?

No. Everything happens in your browser using the Web APIs. Your Base64 string never leaves your device.