Data URI Decoder
Decode any data: URI back into the original file — preview images and download the asset.
About Data URI Decoder
Data URI Decoder turns any data: URI back into the original file — previewing images, showing embedded text and letting you download the decoded asset. It handles both base64 and URL encoding.
How to use Data URI Decoder
- 1Paste or type your data into the input box above (a sample is pre-filled so you can try it instantly).
- 2Adjust any options on offer — delimiter, columns, formatting and so on — to match what you need.
- 3Decoding happens instantly as you type; review the result in the output panel.
- 4Click Copy to grab the output or Download to save it as a file — Data URI Decoder keeps everything on your device.
Why use Data URI Decoder?
- ✓Recovering an image embedded in CSS or HTML as a data URI
- ✓Inspecting what a base64 data: URI actually contains
- ✓Downloading a file that was inlined into code
- ✓100% free with no sign-up, no watermark and no usage limits
- ✓Runs entirely in your browser — your data is never uploaded or stored
- ✓Works offline once loaded, with instant results and one-click copy or download
Frequently asked questions
What encodings are supported?+
Both base64 data URIs and URL-encoded (percent-encoded) data URIs are decoded automatically based on the URI's own header.
Can I see images?+
Yes — image data URIs are previewed inline, and any decoded file can be downloaded with the correct extension.
Is it free to use?+
Yes — it is completely free with no sign-up, no account and no usage limits. There is no watermark and no paywall, so you can process as many files as you like.
Is my data private and secure?+
Yes. This tool runs entirely in your browser using client-side JavaScript — your data is never uploaded to a server, stored or logged. Once the page has loaded you can even use it offline, which makes it safe for confidential or proprietary files.
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