Base64 to Image – Free Online Tool
Free online Base64 to Image tool to convert Base64 encoded strings back to images. Preview and download the decoded image instantly. All conversion happens locally in your browser.
Example Output
Format auto-detected from the magic bytes after decoding.
Decoded PNG preview — ready to download
What is Base64 to Image?
Base64 to Image decodes a Base64 string (with or without the data: URI prefix) back into a viewable, downloadable image. Format is auto-detected from the file signature — PNG, JPEG, GIF, WebP, SVG all supported.
Why use this tool?
- Works offline after the first page load
- Lightweight page weight that loads quickly even on slow connections
- Works on desktop, tablet, and mobile in any modern browser
- Output preserves color profile and metadata except when stripping is explicitly requested
- Supports PNG, JPG, WebP, GIF, and SVG with consistent quality across formats
How to use
- Paste a Base64 string or full data: URI
- Image preview appears once decoded
- Click Download to save as PNG/JPG/etc. (format auto-detected from signature)
- Use to extract images from CSS, HTML emails, or JSON payloads
Examples
Extract a CSS-inlined icon
Copy the base64 string from a stylesheet, paste here, download the original PNG for editing.
View a JSON-embedded image
API response includes a base64 thumbnail? Paste to preview without writing a single line of code.
Common use cases
- Extracting images inlined in CSS/HTML
- Previewing base64 images returned by APIs
- Recovering icons embedded in old documents
- Quick visual verification of base64 payloads
Troubleshooting
- "Invalid image" error.
- Make sure the input is valid Base64 and the decoded bytes start with a known image signature. Strip wrapping quotes or HTML attributes before pasting.
Frequently Asked Questions
Paste your Base64 encoded string (with or without the data URI prefix) into the tool, and it will automatically decode and display the image. You can then download it as a standard image file.
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