Base64 to Image

The Base64 to Image converter is a base64 image viewer that decodes a Base64 string back into a viewable, downloadable image. Paste a full data URL or just the raw Base64 characters — the tool auto-detects the format (PNG, JPEG, GIF, WebP, SVG or BMP) directly from the encoded file signature, so you don't need to know or specify the MIME type yourself.

It's the natural counterpart to the Image to Base64 tool, and it comes up whenever you're working with embedded image data: inspecting an API response that returned an image inline, pulling an icon out of a CSS file, debugging a data URL pasted into a bug report, or recovering an image from a JSON export. In every one of those cases, this tool takes the opaque text blob and turns it back into something you can actually see and save.

Format detection works because every image format starts with a distinctive sequence of bytes — magic bytes — that survive Base64 encoding as a recognizable prefix; for example, PNG data always starts with the characters `iVBORw0KGgo`, JPEG with `/9j/`, and GIF with `R0lGOD`. The tool checks the pasted string against these known prefixes (and reads the `data:image/...;base64,` header directly when one is present) to decode to image to base64 to image round trip a data url to image reliably without guessing.

Decoding happens instantly in your browser — the string is parsed and rendered locally, and the image data is never transmitted anywhere. If a paste fails to decode, the most common causes are a truncated copy that cut off partway through the string, extra characters mixed in from the source, or data that simply isn't an image (an encoded PDF or font file, for instance); the tool strips whitespace and line breaks automatically but can't recover data that's genuinely incomplete.