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Base64 to Image Decoder

Decode Base64 strings to images instantly. Paste any Base64 encoded data and preview the decoded image. Download as PNG, JPG, GIF, or WebP. 100% free, works entirely in your browser - no uploads to servers.

Features

Decode Base64 to PNG, JPG, GIF, WebP images

Automatic image format detection

Preview decoded images with dimensions and file size

100% client-side - your data never leaves your browser

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How to Decode Base64 to Image

Paste Base64 String

Copy your Base64 string from HTML, CSS, database, or API and paste it into the text area. Works with or without the data:image/png;base64, prefix. The tool handles both formats automatically.

Preview Decoded Image

Click Decode to instantly convert the Base64 string back to an image. The tool automatically detects the image format (PNG, JPG, GIF, WebP) and displays the image with its dimensions and file size.

Download or Copy

Download the decoded image to your computer in its original format, or copy the Base64 string to use elsewhere. Perfect for extracting images from code, databases, or API responses.

Use Cases

Web Development

Extract images from HTML/CSS code where they're embedded as Base64. Perfect for debugging inline images, recovering images from old code, or converting Base64 data back to image files for optimization.

Database & API Work

Decode image data stored as Base64 in databases or received from APIs. Convert Base64 responses to viewable images for testing, debugging, or extracting images from JSON/XML responses.

Email & Document Recovery

Extract embedded images from HTML emails or documents where images are stored as Base64. Recover images from email templates, export images from rich text content, or extract visuals from archived communications.

Frequently Asked Questions

What Base64 formats are supported?

This tool accepts Base64 strings in two formats: (1) With data URL prefix like data:image/png;base64,iVBORw0K... or (2) Raw Base64 string without any prefix. Both formats work - the tool automatically detects and handles them.

What image formats can be decoded?

The tool automatically detects and decodes PNG, JPG/JPEG, GIF, and WebP images from Base64. The image format is determined from the Base64 header or data URL prefix. The decoded image maintains its original format when downloaded.

Is my Base64 data uploaded to a server?

No! This tool works 100% client-side in your browser using JavaScript. Your Base64 data never leaves your computer. The decoding happens locally for complete privacy and security. Nothing is uploaded to our servers.

Where do I find Base64 image data?

Base64 image data commonly appears in: HTML/CSS code (inline images), database records (stored image data), API responses (image transmission), email templates (embedded images), and JSON files (image data fields). Copy the Base64 string from any of these sources.

Can I decode multiple images at once?

This tool decodes one Base64 string at a time for simplicity and accuracy. If you have multiple Base64 strings, decode them one by one. Each decoding is instant, so processing multiple images only takes a few seconds.

What if my Base64 string is invalid?

The tool validates your Base64 string before decoding and provides clear error messages if the format is invalid. Common issues include: missing characters, incorrect characters (only A-Z, a-z, 0-9, +, /, = allowed), or corrupted data. Ensure you copied the complete Base64 string.