Free Base64 to Image Converter — Decode Base64 Online
This free tool decodes a Base64 string (or full data URI) back into a real image you can preview and download. It's instant, secure, and runs entirely in your browser — nothing is uploaded.
What does decoding Base64 do?
Base64 stores an image as text. Decoding reverses that, turning the text back into the original image file (PNG, JPG, and more) so you can view it, save it, or use it like any normal image.
How to convert Base64 to an image
- Paste your Base64. A raw string or a full
data:image/…URI both work. - Convert. Click to decode it back into an image.
- Download. Preview and save the image to your device.
Do I need the data URI prefix?
No. If you paste a full data URI, the tool reads the image type from it. If you paste only the raw Base64, it defaults to PNG. Either way, the decoding happens locally in your browser.
Privacy & Security
Everything happens on your device. Your Base64 is decoded in the browser and is never uploaded to a server, so your data stays private.
Frequently Asked Questions
How do I convert Base64 to an image?
Paste your Base64 string or data URI, click Convert, then preview and download the decoded image.
Do I need the data URI prefix?
No. You can paste a full data URI (data:image/png;base64,…) or just the raw Base64 — the tool handles both.
Is it free and private?
Yes. It's free with no signup, and decoding happens in your browser — nothing is uploaded.
What image formats are supported?
Any format encoded in the Base64 — the tool detects the type, defaulting to PNG when it isn't specified.
Does it work on mobile?
Yes, it works on phones, tablets, and desktops.
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ToolBox Team
We build fast, privacy-minded utilities for everyday file work — image, PDF, and text tools you can trust in the browser.