FixImageFormat
← Back to FixImageFormat
Your files stay on your device

Image Developer Tools

Convert images to Base64, Data URI and Blob formats while inspecting MIME types, file signatures, metadata, dimensions, colors and file statistics directly in your browser.

Choose an image
JPG, JPEG, PNG, WEBP, AVIF, GIF, BMP, SVG, HEIC, HEIF and TIFF
No image selected
Filename
—
Dimensions
—
Format
—
MIME
—
File Size
—
Image to Base64
Convert an image file into a Base64 string for APIs, JavaScript, JSON and application development.
Original
—
Base64 Size
—
Encoding
Base64
Processing
Local
Image to Data URI
Generate a complete Data URI containing the MIME type and Base64 image data.
Image to Blob
Inspect the selected image as a browser Blob and generate JavaScript for creating an object URL.
MIME
—
Size
—
Object
Blob
URL
Object URL
Image MIME & File Signature Detector
Detect the actual binary image format using file signatures instead of trusting the filename extension.
Filename
—
Extension
—
Detected Type
—
MIME
—
Image Metadata → JSON
Extract available EXIF and image information into structured developer-friendly JSON.
Developer Code Generator
Generate ready-to-use HTML, Markdown and CSS using the selected image.
Image Color JSON
Analyze the selected image and return dominant sampled colors as JSON.
Image Compression & Dimension Stats
Inspect file size, dimensions, aspect ratio, pixel count, estimated raw pixel size and compression ratio.
Width
—
Height
—
Aspect Ratio
—
File Size
—
Raw RGBA
—
Compression Ratio
—
MIME
—
Pixels
—

Image Developer Toolkit

FixImageFormat's Image Developer Toolkit provides useful browser-based utilities for developers working with image files. Convert images to Base64 and Data URI formats, inspect binary file signatures, extract metadata, generate code snippets and analyze image properties without sending the selected file to a server.

Image to Base64

Convert JPG, PNG, WEBP, GIF, SVG and other supported image files into Base64 strings for APIs, JSON payloads, JavaScript applications and frontend development.

Image to Data URI

Generate a complete Data URI containing the image MIME type and Base64-encoded image data. Data URIs can be used directly in HTML, CSS and JavaScript.

Image MIME Type and File Signature Detection

File extensions can be changed or misleading. The developer detector examines the beginning of the binary file and identifies recognized image signatures and MIME types where supported.

Image Metadata JSON

Inspect useful image information in structured JSON including filename, file size, MIME type, detected format, dimensions and available EXIF metadata.

HTML, Markdown and CSS Generators

Generate ready-to-use HTML image tags, Markdown image syntax and CSS background-image declarations using the selected image.

Image Statistics

View image dimensions, pixel count, aspect ratio, file size, estimated raw RGBA memory requirements and an estimated compression ratio.

Privacy First

The developer tools process the selected image directly inside your browser. Your image is not intentionally uploaded to FixImageFormat's servers for these local developer utilities.

Frequently Asked Questions

What is Base64 image encoding?

Base64 represents binary image data as text characters. It can be useful when image data needs to be embedded into JSON, APIs, source code or other text-based formats.

What is an image Data URI?

A Data URI combines the MIME type and encoded data into a single string such as data:image/png;base64,...

What is a file signature?

A file signature, also called magic bytes, is a sequence of bytes near the beginning of a file that can help identify its actual format.

Can I use the generated Base64 in JavaScript?

Yes. The Base64 output can be placed into JavaScript strings, JSON structures, API requests or converted into a Data URI.

Are my images uploaded?

The core developer tools process the selected files locally in your browser.