SheepShaver.js is a PowerPC emulator now running (slowly) in modern web browsers. See Mihai Parparita's Infinite Mac Project.
As opposed to other web emulators, you CAN import/export files with this! Just drag a disk image or any file on it :)
Web emulators are experimental and slow. Install an emulator on your computer to get much better performance.

Also try... Architecture: SheepShaver.js - Fake G3 (PowerPC) BasiliskII.js 2022 - Quadra 650 (68040) BasiliskII.js 2017 - Quadra 650 (68040) BasiliskII.js - Fake MacII (68020) Mini vMac - MacII (68020) PCE.js - Mac Plus (68000) Mini vMac - Mac Plus (68000) OS: ----- PowerPC ----- Mac OS 9.0.4 Mac OS 8.6 ----- 68040 ----- Mac OS 8.1 Mac OS 8.1 [FRENCH] System 7.5.3 System 7.5.3 + HyperCard 2.1 System 7.5.3 [JAPANESE] ----- 68020 ----- System 7.1 (HDD) System 6.0.7 (800K) ----- 68000 ----- System 7.1 (1.4MB) System 6.0.8 (800K) System 1.1 (400K) System 0.85 (Guided Tour) Software: --- Civilization v1.0.7 Crystal Crazy v1.0.6 Crystal Quest v2.2c Dark Castle Color v3.0.4 Dome Wars v1.5.1 Maelstrom v1.4 Monkey Island 1 v1.0 Monkey Island 2 v1.5.1 Mortal Pongbat v1.1 Prince of Persia v1.0 Prince of Persia 2 v1.0 Shufflepuck Café v1.0 SimCity 2000 v1.0 SimCity Classic v1.5 SimTower v1.2 Stunt Copter 1.x/2.0 (More coming soon)