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GPJamImage Tools

DPI & Quality Tools

Set the right DPI for print (300 is standard), check an image’s resolution, and size by physical units. DPI only matters for print — these tools make it simple.

12 free, in-browser tools in this category.

Convert DPIChange the DPI metadata and print size of an image. Free.
Increase Image DPIIncrease the DPI of an image for printing. Free.
Check Image DPICheck the DPI / resolution stored in an image. Free.
600 DPI PhotoCreate a 600 DPI photo for high-quality printing. Free.
Increase Image QualityIncrease image quality online and free — sharpen, denoise and enhance detail in your browser. Optionally upscale 2× or 4×. No upload.
Super ResolutionEnlarge an image up to 4× with high-quality resampling plus sharpening and denoise — in your browser, free.
Upscale ImageUpscale an image 2× or 4× online and free, with sharpening to keep it crisp. Runs in your browser — no upload.
Unblur ImageReduce blur and sharpen a soft photo online and free, in your browser. No upload, no signup.
Unblur FaceSharpen a soft or slightly blurry face photo in your browser, free. No upload.
300 DPI PhotoCreate a 300 DPI photo for printing. Free, in-browser.
4X Image UpscalerUpscale images 4× with high-quality resampling and sharpening. Free, in-browser, no upload.
2X Image UpscalerUpscale images 2× keeping them crisp. Free, in-browser, no upload.

Guides for dpi & quality tools

DPI vs PPI: What You Actually Need for Print and Web

What DPI and PPI mean, why 300 DPI matters for printing, and why screens only care about pixels — with tools to set DPI and check it.

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