Image
Base64 to Image Decoder
- Browser-based
- Basic conversion
- No signup
- Stays on your device
- Your file is processed in your browser and is not uploaded to our servers.
Paste Base64 or a data URL to preview the image and download PNG, JPG, WebP, GIF, or SVG output. Decoding and type detection run in your browser—invalid or non-image Base64 will not decode.
100% Client-Side
Your data never leaves your computer.
How to use this tool
1. Paste a Base64 string or full data URL into the input panel. 2. Review the decoded image preview. 3. Confirm the detected format (PNG, JPG, WebP, GIF, or SVG). 4. Download the image file if the preview looks correct. 5. Fix invalid Base64 or try a different encoding if decoding fails. Processing runs in your browser; inputs are not uploaded to our server.
Worked example
Example: paste a small PNG data URL such as data:image/png;base64,... and download the decoded PNG—invalid or non-image Base64 will show an error instead of a preview.
How it works
Paste a Base64 string or data URL. The tool decodes it in your browser, detects the image type from the bytes or data URL header, and shows a preview you can download. Nothing is uploaded to a server.
Limitations
Decodes Base64 strings and data URLs for supported image formats (PNG, JPG, WebP, GIF, SVG). Invalid or non-image Base64 will fail—it does not repair corrupted data.
Privacy and file handling
Your data is processed in your browser and is not uploaded to our server.
Frequently asked questions
Can I paste a data URL?
Yes. Paste either a raw Base64 string or a full data URL. The tool detects the image type from the header or file bytes.
Is decoding done on a server?
No. Decoding and preview stay in your browser.
Is Base64 to Image Decoder free to use?
Yes. Utilnivo tools are free to use and do not require an account.
Related tools
Related pages
- Browse all free online tools on Utilnivo
- Explore more image tools on Utilnivo
- Image to Base64 Converter — Convert an image file to Base64 or a data URL.
- Base64 Encoder & Decoder — Encode and decode text with Base64.
- Image Format Converter — Convert images between JPG, PNG, and WebP formats.
- Image Compressor — Compress images to reduce file size.
- Resize Image — Resize images to custom dimensions.
- Remove Background — Remove image backgrounds on-device (first run downloads a model from a CDN).
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