Base64 to Image Decoder
Decode Base64 back into an image online. Paste a data URI or raw Base64, preview the result and download — decoded locally in your browser.
Both forms work — with or without the data:image/…;base64, prefix. The image is decoded locally in your browser.
Your images are processed directly in your browser. They are not uploaded to our servers.
How to use
Four steps from pasted data to a downloaded image file.
- Paste Base64Drop the string into the input — data URI or raw payload both work.
- Decode itThe payload is decoded locally the moment you paste.
- Preview the imageSee the picture with its detected format and dimensions.
- Download itSave the decoded file with the correct extension.
- Every step runs locally in your browser.
Key Features
Decoding and previewing happen entirely in your browser.
- Data URI and raw inputBoth forms are accepted — the prefix is optional.
- Format detectionThe image type is identified from the data itself.
- Instant previewThe decoded picture appears as you paste.
- Downloadable outputSave the file locally with the correct extension.
Frequently asked questions
PNG, JPEG, GIF, BMP, WebP, AVIF and SVG — anything your browser can display. With raw input the format is detected from the file's signature bytes.
Yes. A full data URI (data:image/png;base64,…) or the raw Base64 payload both work — the prefix is optional.
Yes — the Download button saves the decoded bytes as a file with the correct extension for its detected format.
The string is usually truncated or altered during copying. Make sure the entire payload — from start to the final padding = signs — was pasted.
No. Decoding and previewing happen entirely in your browser; the payload never leaves your device.