Image Size Finder
Instantly check image dimensions, file size, and detailed metadata
Drop or click to upload your image. All processing happens in your browser - no files are uploaded to any server.
Upload Your Image
Drag & drop an image here
or
Supports: PNG, JPEG, WebP, GIF, SVG, BMP
How to Use
Upload Image
Click the upload area or drag and drop your image file.
View Information
Image Size Finder will instantly display all image details.
Privacy Guarantee
All processing happens locally in your browser - no files are sent to any server.
Key Features
100% Private & Secure
All image processing happens locally in your browser. Your images never leave your device and are never uploaded to any server.
Lightning Fast Analysis
Get instant results without waiting. No upload time means immediate detailed information about your images.
All Image Formats Supported
Works with PNG, JPEG, WebP, GIF, SVG, BMP and more. Simply drag and drop any image file.
Works Everywhere
Fully responsive design works perfectly on desktop, tablet, and mobile devices with any modern browser.
Frequently Asked Questions
Are my images uploaded to a server?
No. All image processing happens entirely in your browser using JavaScript. Your images never leave your device.
What image formats are supported?
We support all common image formats including PNG, JPEG, WebP, GIF, SVG, BMP, and more.
Is there a file size limit?
There is no strict limit. Image Size Finder can handle very large images, though extremely large files may take longer to process.
Can I use this on mobile devices?
Yes! This tool works perfectly on smartphones and tablets.
Image Size Explained: A Complete Guide to Pixels, Resolution, and File Size
You've used our Image Size Finder tool to get your image data, but what do these numbers actually mean? Whether you're trying to check image size for your website or find image dimensions online, understanding the difference between pixels and file size (KB/MB) is crucial for optimizing your website, improving load speed, and displaying the best images on social media. This guide breaks down everything you need to know about how to check image size and what those numbers mean.
How to Find Image Dimensions Online: Pixels vs. File Size Explained
When you need to check file size of a picture or find its dimensions, this is the most common confusion. Let's clarify the difference between pixels and file size:
- Dimensions (Width × Height): This represents the space an image occupies on screen, measured in pixels (e.g., 1920×1080 pixels). Think of it like the physical dimensions of a printed photo (e.g., 5×7 inches).
- File Size (KB/MB): This represents the storage space an image occupies on your hard drive (e.g., 250KB or 2MB). Think of it as the weight of that printed photo.
Key Insight: A 1920×1080 pixel image can be a highly compressed 150KB JPEG or an uncompressed 15MB PNG. Same dimensions, vastly different file sizes. Compression is the difference.
What is My Image Resolution? How to Check DPI and PPI for Web vs. Print
Many people ask "what is my image resolution?" when they really want to know how to check image quality. Let's demystify PPI, DPI, and why they matter differently for web and print:
- PPI (Pixels Per Inch): Pixel density used for screens and digital displays.
- DPI (Dots Per Inch): Dot density used for print media and physical output.
Myth Busted: For web browsers, an 800×600 pixel image at 72 PPI looks identical to an 800×600 pixel image at 300 PPI. On the web, pixel dimensions are king, not PPI metadata. The 72 vs 300 DPI debate is irrelevant for digital screens. DPI only matters when printing - 300 DPI is standard for high-quality print output.
Image Metadata Viewer: How Image Format (MIME Type) Affects File Size
Our image metadata viewer displays MIME types (like image/jpeg), which directly impact file size. When you check file size of a picture, the format makes a huge difference. Here's why:
- JPEG/JPG: Lossy compression, best for photographs. Creates small files but with slight quality loss. Ideal for web photos and backgrounds.
- PNG: Lossless compression, best for logos and icons needing transparency. Files are typically larger than JPEG but preserve perfect quality.
- WebP: Modern format by Google combining JPEG's small size with PNG's transparency. Best choice for web performance. Up to 30% smaller than JPEG.
- GIF: Only for simple animations. Limited to 256 colors. Not recommended for photos.
Why Image Size is Critical for SEO and User Experience
Image optimization directly impacts your website's search ranking and user satisfaction:
- Core Web Vitals: Large image files severely slow down LCP (Largest Contentful Paint), a key Google ranking factor. Pages that load slowly rank lower.
- Bounce Rate: Slow loading speeds cause users to leave, sending negative signals to Google. 53% of mobile users abandon sites that take over 3 seconds to load.
- Mobile-First Indexing: On mobile devices, oversized images consume user data and create poor experiences. Google prioritizes mobile performance in rankings.