Convert Base64 to Image Online
Got a long Base64 string from an API response, a database or an email template? Paste it (with or without the data:image prefix) and the image appears immediately.
- Never uploaded
- Instant, no sign-up
- Works offline
About this tool
The tool checks the actual bytes to identify the real file type, shows its dimensions and size, and lets you download it with the right extension. Bad input gets a clear explanation instead of a broken image.
How it works
- 1
Paste the Base64 text or data URI.
- 2
Check the preview, type and dimensions.
- 3
Download the image.
Features
- Prefix optionalWorks with full data URIs and bare Base64, including line breaks and URL-safe characters.
- Detects the real typePNG, JPG, GIF, WebP, BMP, AVIF and SVG are recognised from the data itself.
- Clear errorsInvalid characters or non-image data are reported in plain language.
- Also encodesSwitch tabs to turn an image into Base64.
Supported formats
Input: Base64 or data URI text. Output: the decoded image file (PNG, JPG, GIF, WebP, BMP, AVIF or SVG).
Frequently asked questions
Do I need the data:image/png;base64, prefix?
No. Paste either the full data URI or just the Base64 characters.
Why does it say the data isn't an image?
The decoded bytes must start like a real image file. Truncated strings or other kinds of data (like PDFs) can't be shown here.
Is the text sent anywhere?
No. Decoding happens in your browser.
Are my images uploaded to a server?
No. Files are decoded, processed and re-encoded by your browser using the canvas API and Web Workers. Nothing is sent to any server, and there is no account or storage. Closing the tab discards everything.
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