Base64 to Image Converter
If you have a Base64-encoded image string — whether it's a full data URI or just the raw encoded text — this tool decodes it back into a real, viewable image instantly. Paste the string in, and the tool detects the format automatically where possible, renders a live preview, and lets you download the result as an actual image file. Everything happens locally in your browser, so pasted data (which may be sensitive) is never transmitted anywhere.
How to Use Base64 to Image Converter
- Paste your Base64 string or full data URI into the text box.
- If you pasted raw Base64 (no data:image/... prefix), select the correct image format from the dropdown.
- The decoded image preview appears instantly.
- Click "Download Image" to save the result as a file.
Features & Benefits
- Accepts both full data URIs and raw Base64 strings.
- Automatic format detection for standard data URIs.
- Manual format selector for raw Base64 input.
- Instant live preview of the decoded image.
- One-click download as a real image file.
Detailed Information
When you paste a full data URI (starting with data:image/png;base64, or similar), the tool reads the MIME type directly from the prefix and can render it immediately by setting it as an image source, since browsers natively understand data URIs. When you paste raw Base64 with no prefix, the tool reconstructs a valid data URI by combining your selected format with the pasted string. If the string is invalid or corrupted (wrong padding, unsupported characters), the tool shows a clear error rather than a broken image, so you know immediately if the input needs fixing.
Common Uses & Examples
- Previewing an image embedded in a piece of code (CSS, JSON, an email template) before you understand what it shows.
- Recovering an image from a Base64 string found in a database dump or API response.
- Verifying that a Base64 string you generated elsewhere is valid and represents the expected image.
- Quickly converting a Base64 snippet into a shareable image file.
Tips & Best Practices
- If the preview doesn't appear, double-check you've selected the correct format for raw Base64 input (PNG vs JPG will produce different — or no — results if mismatched).
- Make sure you've copied the complete string; a truncated Base64 string is the most common cause of a broken decode.
- For quick round-tripping, use this tool alongside the Image to Base64 Converter.
Privacy & Security
Decoding happens entirely in your browser. The pasted Base64 data is never sent to a server, which matters if it represents a sensitive or private image.
Conclusion
Paste, preview, download — this tool makes turning a Base64 string back into a usable image nearly instant, without exposing the data to any server.
Frequently Asked Questions
A data URI includes a prefix like data:image/png;base64, identifying the format; raw Base64 is just the encoded characters with no such prefix, so you'll need to specify the format manually.
This usually means the pasted string is incomplete, corrupted, or the wrong format was selected for raw Base64 input.
No — decoding happens entirely client-side in your browser.
Use the companion Image to Base64 Converter tool for that direction.