Play your own copy of the 2000 PC game in this browser. The game files come from your GOG installer disc image and stay on this device. Use the mouse in the menus, press Esc for the pause menu (F1 shows the controls list).
Works in current desktop Chrome, Edge, Firefox and Safari, in a normal (not private) window. Needs about 1 GB of storage for this site. Unpacking the disc takes under a minute, once.
Choose a disc image (.iso) that holds the GOG installer of Hitman: Codename 47 (the file setup_hitman_codename_47_b192_(17919).exe). It is unpacked into this browser's private storage (about 310 MB).
.exe file, build 17919).genisoimage -o hitman.iso <the .exe>; on Windows a free tool such as AnyBurn (“Create image file from files/folders”); on Mac hdiutil makehybrid -iso -o hitman.iso folder/.The image never leaves your computer: this page reads it inside your browser.
Your progress is kept only in this browser (Hitman.sav and the Save folder of the install). Back it up to keep it safe or to carry it to another browser or computer. Restoring also accepts the Hitman.sav of a Windows installation.
The resolution is saved to the game's Hitman.ini as you change it and applies the next time you press Play.
Browsers keep Esc for leaving fullscreen and releasing the mouse (Chrome and Edge let the game have it in fullscreen). This key works as Esc in the game everywhere.