Universal image decoder

Base64 to Image

Convert Base64 string to image PNG, JPEG, JPG, SVG, BMP, TIFF format with this free and simple online tool. Just insert Base64 code and Download image. All conversions happen locally in your browser. Files never leave your device.

Input

Paste Base64

Auto detect

Paste any supported format. The converter automatically extracts and previews the image. Maximum Base64 text input: 10 MB.

Drop a .txt or .json file here. Your image data stays in this browser.

Up to 10 MB
Output

Generated Image

Waiting for input
Generated Image will appear here

Paste and convert a Base64 string to generate image output.

Auto-detect format10 image formatsLocal preview
100% Private

All conversions happen locally in your browser.

Super Fast

Instant conversion with zero waiting time.

Secure

Your data never leaves your device.

Developer Friendly

Perfect for developers, designers and testers.

Files stay on your device No account No daily limits
Browser-side decoding

How Base64 to image works in the browser

Base64 is text that represents binary bytes. This converter decodes those bytes locally, checks common image signatures such as PNG 89 50 4E 47 and JPEG FF D8 FF, then creates a browser preview without sending the payload to a server. A full data URL such as data:image/png;base64,... also provides a MIME hint, but the decoded bytes remain the important signal when identifying the image.

Decoder guide

Decode Base64 image data online

This Base64 decoder turns encoded image data into a visible preview. It is useful for API responses, HTML data URLs, CSS background images, JSON payloads, email templates and copied byte arrays.

Paste a Base64 string, full data URL, or compatible byte array and the tool will detect the image type, show a preview, and allow you to download the decoded file.

How to convert Base64 to image

  1. Paste your Base64 string or data URL into the input field.
  2. Click “Convert String to Image”.
  3. Preview the generated image and download the result.

Common use cases

  • Debug Base64 images from APIs.
  • Test HTML image data URLs.
  • Extract images from JSON payloads.
  • Validate embedded CSS background images.

Base64 decoder vs image converter

This page focuses on decoding and validating pasted Base64, data URLs and byte-array text. Use it to inspect image payloads, confirm the detected MIME type and download the decoded result after previewing it.

Specific image formats

Need a specific output format?

Base64 to PNG

Decode Base64 PNG data for transparent graphics, screenshots, icons and UI assets.

Base64 to JPG

Decode JPG image data for photos, compressed web images and API payloads.

Base64 to JPEG

Decode JPEG data URLs and image payloads while preserving the standard image/jpeg MIME type.

Common questions

Base64 Image FAQ

Is my image uploaded to a server?

No. The conversion runs locally in your browser, so the image data stays on your device.

Can I paste a full data URL?

Yes. You can paste either a plain Base64 string or a value like data:image/png;base64,...

Why does the tool show an error?

The most common reasons are invalid Base64 text, unsupported image data, or a string that was copied only partially.

Which image formats are supported?

JPG, JPEG, PNG, GIF, BMP, TIFF, SVG, WEBP, AVIF, and ICO are supported.

Should I use Base64 images on production websites?

Small icons can be fine, but large images are usually better served as separate optimized files for better caching and page speed.