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DPI Converter
Change image DPI instantly
DPI Converter is a free, browser-based tool that lets you change the DPI of your images instantly — no uploads, no sign-up, no watermarks. Everything runs locally using the HTML5 Canvas API, so your files never leave your device. Supports JPG, PNG, WebP, BMP, TIFF, and GIF, with real-time print-size previews and batch processing for up to 50 images at once. Perfect for photographers, designers, and anyone who's had a print job rejected for "wrong DPI
Hey Product Hunt! 👋
I built DPI Converter after getting tired of print shops and stock photo sites rejecting images because they were "72 DPI instead of 300." Most online DPI tools make you upload your file to a server — which felt unnecessary and a little risky for client photos or personal images.
So I built this to run entirely in your browser. Drop in an image, pick a target DPI, get a live preview of exactly how it'll print, and download — nothing ever touches a server.
A few things I'm proud of:
✅ 100% private — Canvas API processing, no uploads
✅ Batch convert up to 50 images at once
✅ Built-in DPI checker and DPI calculator
✅ Totally free, no account needed
Would love your feedback — especially if you're a photographer or designer who deals with DPI headaches regularly. What would make this more useful for your workflow?
About DPI Converter on Product Hunt
“Change image DPI instantly”
DPI Converter was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #144 on the daily leaderboard. DPI Converter is a free, browser-based tool that lets you change the DPI of your images instantly — no uploads, no sign-up, no watermarks. Everything runs locally using the HTML5 Canvas API, so your files never leave your device. Supports JPG, PNG, WebP, BMP, TIFF, and GIF, with real-time print-size previews and batch processing for up to 50 images at once. Perfect for photographers, designers, and anyone who's had a print job rejected for "wrong DPI
On the analytics side, DPI Converter competes within Design Tools, Productivity and Photography — topics that collectively have 1.1M followers on Product Hunt. The dashboard above tracks how DPI Converter performed against the three products that launched closest to it on the same day.
Who hunted DPI Converter?
DPI Converter was hunted by Manish Kumar Jain. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of DPI Converter including community comment highlights and product details, visit the product overview.
Manish Kumar Jain