Decode Base64 strings to images — preview, inspect metadata, and download
Base64 String or Data URL
Drop an image to generate its Base64, or click to select
Paste any Base64 string or Data URL and instantly see the decoded image. Supports PNG, JPEG, GIF, WebP, SVG, and more. Inspect dimensions and estimated file size, then download with one click — all in your browser, nothing uploaded.
How to Use
- 1Paste a Base64 string (with or without the 'data:image/...;base64,' prefix) into the input box
- 2Or drop an image file onto the drop zone to generate its Base64 representation
- 3The image preview appears immediately with format, dimensions, and size
- 4Click 'Copy Data URL' to copy the full data URI to your clipboard
- 5Click 'Download' to save the decoded image to your device
Frequently Asked Questions
What is a Base64 image?
A Base64 image is a binary image file encoded as ASCII text. It is often embedded directly in HTML, CSS, or JSON as a Data URL (e.g. data:image/png;base64,...) to avoid separate file requests. This tool decodes it back to a viewable image.
Do I need the 'data:image/...;base64,' prefix?
No. This tool accepts both raw Base64 strings and full Data URLs. If you paste a raw string, the format is auto-detected from the binary signature (JPEG, PNG, GIF, WebP, etc.).
What image formats are supported?
PNG, JPEG, GIF, WebP, SVG, BMP, and ICO. The format is auto-detected from the Base64 header bytes so you do not need to specify it manually.