About Image DPI Checker
Our Mission
We created Image DPI Checker to provide a fast, free, and privacy-focused tool for checking image resolution and DPI information. Whether you're a designer preparing files for print, a photographer managing image quality, or someone curious about their image specifications, our tool makes it simple.
Why We Built This
Many online image tools require uploading your files to remote servers, raising privacy concerns. We believe your images should stay private. That's why Image DPI Checker processes everything directly in your browser - your images never leave your device.
Key Features
- 100% Client-Side Processing: Your images are analyzed entirely in your browser
- No Upload Required: Images never leave your device
- Instant Results: Get image dimensions, DPI, and file size immediately
- Free Forever: No registration, no hidden fees
- All Formats Supported: Works with JPG, PNG, GIF, BMP, WebP, and more
What is DPI?
DPI (Dots Per Inch) is a measure of image resolution for printing. It determines how many dots of ink are placed per inch when an image is printed. Higher DPI values result in sharper, more detailed prints but also larger file sizes.
Common Use Cases:
- Web Graphics: 72-96 DPI is standard
- Home Printing: 150-200 DPI works well
- Professional Printing: 300 DPI is industry standard
- Large Format Prints: Can use lower DPI due to viewing distance
Technology
Image DPI Checker is built with:
- Pure JavaScript for image processing
- HTML5 File API for secure local file handling
- EXIF and metadata parsing for accurate DPI extraction
- Responsive CSS for mobile and desktop compatibility
Privacy Commitment
Your privacy is our top priority. We never collect, store, or transmit your images. All processing happens locally in your browser. See our Privacy Policy for full details.
Feedback and Support
We're constantly improving Image DPI Checker based on user feedback. If you have suggestions, encounter issues, or just want to say hello, please visit our contact page.