Nothing to install
Open a tab and go. No download, no setup, no updates to manage.
PosteRazor is a solid offline desktop app — but you have to download it, and it only runs on a computer. GridPrint does the same tiling in any browser, including your phone.
No install · works on phone & desktop · still works offline · free
PosteRazor is a dependable open-source poster-tiling app, and if you want a fully offline desktop program it is a fine choice. The catch: you have to download and install it, it only runs on Windows, Mac, or Linux computers (no phone or tablet), the interface hasn’t changed in years, and there is no built-in editing — you prepare the image elsewhere first. GridPrint runs in the browser with nothing to install, works on a phone, lets you crop and adjust before printing, and — once loaded — still works without internet.
| GridPrint | PosteRazor | |
|---|---|---|
| Install required | No — runs in the browser | Yes — download & install |
| Works on phone / tablet | Yes | No (desktop only) |
| In-app editing (crop, adjust, effects) | Yes | No |
| Exact-size / real-scale printing | Yes | Yes |
| Overlap & assembly guides | Yes | Yes |
| Languages | 10 | English (UI) |
| Works offline | Yes (installable PWA) | Yes (native app) |
| Price | Free, no watermark | Free, open source, no watermark |
Choose GridPrint if you’d rather not install anything, want to work from a phone, or want to crop and adjust the image in the same tool.
Choose PosteRazor if you want a traditional installed desktop application and don’t mind the setup.
Open a tab and go. No download, no setup, no updates to manage.
Desktop, laptop, tablet, or phone — the same tool, the same result.
Crop, rotate, adjust, and skip blank pages before exporting your PDF.
Your image never leaves your device, and the app keeps working without internet.