About this tool
Decode an image represented by a Base64 string or image data URI. Check that the decoded bytes describe the image you expected before using the resulting download in another document or application.
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server.
मुख्य इनपुट और नियंत्रण हिंदी में देखने के लिए ऊपर “🇮🇳 हिंदी में देखें” चुनें। गणना और फ़ाइल प्रोसेसिंग इसी ब्राउज़र टैब में होती है; टूल आपके इनपुट हमारी होस्टिंग पर नहीं भेजता।
Features
- Accept an entered Base64 image string or image data URI.
- Inspect the decoded format and byte size reported by the tool.
- Save the decoded image without pretending that a MIME-label change converts its bytes.
Benefits
- Recover an image from an existing data URI.
- Inspect the decoded format and size before saving it.
Who should use this tool?
- Developers inspecting embedded images.
- People recovering a known image string.
How to use
- Paste the complete Base64 image string or image data URI into its labelled field.
- Run the tool and inspect the decoded format, size and preview.
- Download and open the saved image. Use the format converter separately if a different encoding is required.
Try these worked examples
| Scenario | Example inputs | Example result |
|---|---|---|
| Decode 1×1 PNG Data URI (68 Bytes) | Paste Base64 String or data:image/... URI: data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR… | Valid PNG Image (70 Bytes / 0.07 KB) |
| Decode Base64 SVG Circle Icon | Paste Base64 String or data:image/... URI: data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmc… | Valid SVG Image (116 Bytes / 0.11 KB) |
Reference and processing
RFC 2397 Data URI & Binary Magic-Byte Signature Detection
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server.
FAQs
Does changing the MIME label convert the image format?
A MIME label describes the data; it does not re-encode it. Use the image format converter when you need a genuine JPEG, PNG or WebP conversion.
Which inputs do I need for Base64 String / Data URI to Downloadable Image Decoder?
Use Paste Base64 String or data:image/... URI. The built-in examples show how those fields fit together.
What should I check before using this result?
The string must contain usable image data. A MIME label is not a format conversion, and a reported format should be checked against the actual saved image. Keep the original file. Check the saved format, dimensions, page order and content before replacing or sharing a document.
What happens to the information I enter?
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server. Tool favourites save only tool IDs in this browser. Sharing sends the tool link, not your working values or files.