Download DuckyTools
Every tool on this site, in one desktop app, working entirely offline. It is the same code you are using right now, wrapped in a window of its own.
Windows
Windows 10 and 11, 64-bit. The portable file runs straight from your Downloads folder; the installer adds a Start menu entry.
Linux
64-bit. The AppImage runs anywhere once you mark it executable; the deb is for Debian and Ubuntu.
Do I need it?
No. Every tool works in your browser, and the site already keeps working offline after your first visit. The app is worth it if you want DuckyTools in the dock or Start menu, an application window without browser tabs and address bar, or a copy on a machine that never goes online at all: the whole site, all 312 tools and the on-device engines for PDFs, ZIPs, OCR and background removal, are inside the download.
What it does not do
It does not check for updates, phone home, collect analytics or open a network connection of any kind. There is no account and no licence key. Files you open stay on your machine, exactly as they do on the website, because it is the same code with no server behind it.
Installing on Windows
Builds are not signed with a paid certificate, so SmartScreen may show a blue "Windows protected your PC" panel the first time. Choose More info, then Run anyway. If you would rather not, the website does the same job with no install at all.
Installing on macOS
The disk image is not notarized, so macOS will say it cannot check the app for malicious software. Right-click (or Control-click) DuckyTools in Applications, choose Open, then Open again in the dialog. You only have to do that once.
Installing on Linux
For the AppImage: chmod +x DuckyTools.AppImage and run it. For the deb: sudo apt install ./DuckyTools.deb.
Where the files come from
Each release is built from this repository by a GitHub Actions workflow and published on the releases page, so you can read the workflow, the app source and every line of the tools before you run them. If a link above returns "Not found", no release has been tagged yet; the browser version is always current.
One tool at a time
You do not need the whole app for a single job. Paint, Notepad, Binary Notepad, the image converter and the spreadsheet tools each have a Save as HTML button that writes that one tool to a single self-contained file you can keep anywhere.