Image Base64 Previewer & Extractor

Two-way Base64 image toolkit: decode any Base64 image string into a viewable preview, or encode an image file into Base64 text ready to paste into code. All processing happens locally.

Image Base64 Previewer & Extractor

Decode Base64 to image, or encode images to Base64 text.

Decode Base64 → ImageEncode Image → Base64

Paste Base64 image string

Preview ImageClear

⬇ Download Image

🔤

Drop image here or click to browse

Base64 output

📋 Copy Base64

How to Use

1. To decode: paste a Base64 image string and click "Preview Image". To encode: drop an image file.
2. Preview the decoded image or review the generated Base64 text.
3. Download the image or copy the Base64 text for your code.

Core Features

• Two-way conversion: Base64 to image and image to Base64.
• Auto-detects JPEG vs PNG when the data-URL prefix is missing.
• One-click copy and download.
• Fully client-side — your data never leaves the browser.

Frequently Asked Questions

My Base64 has no data:image prefix. Will it work?

Yes. The tool detects JPEG data (starts with /9j/) automatically and assumes PNG otherwise.

Is there a size limit for encoding?

Only your device memory. Base64 output is about 33% larger than the original file.