Image DPI Changer
Free · Instant · PrivateChange Image DPI Online — Free & Instant
Convert images to 300 DPI for print, or reduce DPI for web. No uploads to servers — everything runs in your browser.
Drop your image here, or click to browse
Works entirely in your browser — files are never sent to any server
JPEG · PNG · WebP · BMP · GIFUpload Image
Drop or select any JPEG, PNG, or WebP image from your device.
Set Your DPI
Choose a preset (72 / 96 / 300 / 600) or drag the slider to any value.
Download
Click Convert, preview the result, and download the new image instantly.
What is Image DPI & Why Does It Matter?
DPI (Dots Per Inch) defines the resolution density of an image. Higher DPI means more detail packed per inch — essential for sharp printed materials like brochures, posters, and business cards. Lower DPI is ideal for web images that need fast load times without sacrificing on-screen clarity.
- 72 DPI — Standard screen resolution for web images
- 96 DPI — Windows screen default, great for web optimisation
- 300 DPI — Professional print standard for sharp, high-quality output
- 600 DPI — High-fidelity print for detailed graphics and fine art
Frequently Asked Questions
Does changing DPI affect image quality?
The metadata DPI tag is rewritten without resampling pixels, so visual clarity is preserved. If you scale up resolution, quality depends on the original image size.
What DPI should I use for printing?
300 DPI is the professional standard for most printed materials. Magazine covers and fine-art prints may require 600 DPI or higher.
Is this tool free and safe?
Yes — completely free. All processing happens inside your browser. Your images are never uploaded to any server.