Base64 to Image Converter

Decode Base64 strings and convert them to downloadable images

Base64 to Image Converter

Base64 Input Supports both raw Base64 and data URI format (data:image/png;base64,...)

Drop a text file containing Base64 data

Drag & drop .txt or .b64 files here, or click to browse

All processing happens in your browser. No data is sent to any server.

Usage Examples

Database Images

Convert Base64 encoded images stored in databases back to viewable image files.

API Responses

Decode Base64 image data received from API responses into downloadable files.

Debug & Testing

Quickly preview and verify Base64 encoded images during development and debugging.

Features

Auto Format Detection

Automatically detects image format from Base64 data including PNG, JPEG, GIF, WebP and SVG.

Instant Preview

See the decoded image immediately with file size and dimension information.

Easy Download

Download the decoded image in its original format with a single click.

Private & Secure

All decoding is done locally in your browser. Data never leaves your device.

How to Use

Paste Base64

Paste your Base64 string into the text area or drop a text file containing the data.

Convert

Click Convert to decode the Base64 string and preview the resulting image.

Download

Download the image or copy the data URI for use in your project.

Frequently Asked Questions

Base64 is a way to represent binary data (like image files) as plain ASCII text. It converts every 3 bytes of binary into 4 printable characters using A-Z, a-z, 0-9, + and /. A Base64-encoded image can be embedded directly in HTML, CSS, JSON, or XML without needing a separate file or URL.

PNG, JPEG, GIF, WebP, SVG, and BMP. The format is automatically detected from the Base64 data URI header (data:image/png;base64,... or data:image/jpeg;base64,...). For raw Base64 without a header, the tool attempts format detection from the binary signature.

No. You can paste raw Base64 (just the encoded string) or a full data URI (data:image/png;base64,iVBORw0KGgo...). Both work. The data URI prefix, if present, is used for format detection. If absent, the tool detects the format from the binary content.

Common sources: HTML files with inline images, CSS with background-image: url("data:image/..."), JSON API responses that return image data as strings, database blobs stored as Base64 text, email attachments encoded in MIME, and dev tools that let you copy an image's src attribute.

Use the companion Image to Base64 tool on this site. It converts any image file (PNG, JPEG, WebP, GIF, SVG) to a Base64 string or data URI, ready to embed inline or use in API payloads.

It copies the full data URI format (data:image/png;base64,...) to your clipboard. This is the format used directly in HTML src attributes (img src="data:image/png;base64,...") and CSS background-image properties, so you can paste it immediately without needing the file.

After decoding, the tool shows the image preview, detected format (PNG/JPEG/etc.), decoded file size in KB/MB, and image dimensions (width × height in pixels). This is useful for verifying the decoded image before downloading.

No. All decoding runs locally in your browser using JavaScript. Your Base64 string — which may represent sensitive images like screenshots, documents, or photos — never leaves your device.

What is Base64 to Image Converter?

A free browser tool that turns Base64-encoded strings into viewable, downloadable images. It auto-detects the image format from the data header and runs entirely client-side, so your encoded data never leaves your device.

Common Use Cases

Developers hit Base64 images constantly -- in database blobs, API payloads, and inline CSS. This tool lets you paste the string, see what it actually looks like, and grab the file in its original format without writing a single line of code.

Drag-and-Drop Support

Got the Base64 data in a text file? Just drag it onto the drop zone. The tool reads .txt and .b64 files automatically, decodes the content, and shows you the image with full metadata.

Privacy First

Base64 strings can contain sensitive images. Because everything happens in your browser, there is zero risk of data leaking to a third-party server. Decode, inspect, and download with confidence.

Security and Privacy

Your data security is our priority

Local Processing

All processing happens in your browser

No Data Transfer

Your data is not sent to our servers

No Data Storage

No data is stored or shared

SSL Encryption

SSL encryption for secure connection

Next Step

Image to Base64 Converter

Convert images to Base64 strings with drag and drop support

Image Format Converter

Convert images between PNG, JPEG, WebP, GIF, and BMP formats

Was this tool useful?

Base64 to Image Converter