Nestopia 1.48 is considered one of the best NES/Famicom emulators that allows you to run games on your computer created for the Nintendo console. It does not require installation (portable version) and is available for Windows, Linux, and Mac OS.
The Emulator supports ROMs in most popular formats (for example, NES or FDS), perfectly coping with image and sound emulation. Supports NTSC and PAL systems, and supports a variety of controllers, such as gamepads, keyboards, etc. Nestopia provides the ability to play 2nd or even 4th, while also allowing tournaments to be played over the Internet.
The advantage of Nestopia is a large number of available configuration options. With their help, for example, you can conveniently configure your gamepad for games, manage the main parameters of the image (brightness, contrast or saturation) and sound. Not without useful features: the so-called saves, cheats and AutoSave game progress.
The latest version 1.48 of the emulator is available in English.