Short answer: The best PS2 emulator in 2026 is PCSX2 for PC and NetherSX2 for Android. PCSX2 is the most accurate, best supported, and longest running PS2 emulator, with native Windows, Linux, and Mac builds. NetherSX2 is the actively maintained Android fork of AetherSX2 and the best choice for phones. AetherSX2 itself is discontinued, so new users should not start with it.
This comparison breaks down all three emulators: what each does best, where each falls short, and which one you should pick for your device.
Quick Comparison Table
| Feature | PCSX2 | NetherSX2 | AetherSX2 |
|---|---|---|---|
| Platform | Windows, Linux, Mac | Android | Android |
| Actively developed | Yes | Yes | No (discontinued) |
| Price | Free | Free | Free |
| Best for | PC gaming, upscaling to 4K | Android gaming | Legacy installs only |
| Controller support | Excellent | Excellent | Excellent |
| Game compatibility | Highest (most games playable) | Very high | High, but no new fixes |
PCSX2: The Best PS2 Emulator for PC
PCSX2 has been in development for over 20 years and is the reference PS2 emulator. It supports upscaling to 4K, widescreen patches, texture filtering, save states, and per-game settings. Compatibility is the highest of any PS2 emulator, with the vast majority of the PS2 library rated playable.
Pros: best compatibility, active development, 4K upscaling, huge community, regular bug fixes, works on Windows, Linux, and Mac.
Cons: requires a real PC, setup takes a few more steps than mobile, some demanding games still need a strong CPU.
PC users should start with our PCSX2 BIOS setup guide and our beginner guide to playing PS2 games on PC.
NetherSX2: The Best PS2 Emulator for Android
NetherSX2 continues the work of AetherSX2 on Android, with ongoing fixes and improvements. It offers the same strong compatibility on phones, touch controls, Bluetooth controller support, and per-game settings. For Android users in 2026, this is the clear pick.
Pros: actively maintained, best Android performance, free, good controller support, regular updates.
Cons: needs a strong phone chip for 3D games, touch controls are awkward for some genres, no iOS version.
Android users should follow our PS2 BIOS for Android setup guide.
AetherSX2: Discontinued, Do Not Start With It
AetherSX2 was excellent in its time and brought full PS2 emulation to Android. However, its developer stopped development, and it receives no new fixes. Existing installs still work, but new users get a better experience with NetherSX2, which continues the same codebase.
Pros: stable for older installs, same core as NetherSX2.
Cons: no updates, no new bug fixes, falling behind on newer Android versions.
If you still use AetherSX2, our AetherSX2 BIOS setup guide remains available.
Which Emulator Should You Choose?
- Playing on a PC, laptop, or Mac: choose PCSX2. Nothing else matches its compatibility and upscaling.
- Playing on an Android phone or tablet: choose NetherSX2 from its official GitHub page.
- Playing on an iPhone: there is no good native option right now. See our PS2 emulator for iOS guide for the honest state of things and safer alternatives.
- Already using AetherSX2: it still works, but consider moving to NetherSX2 for continued fixes.
What About Other Emulators?
Play! is an open source PS2 emulator that runs on many platforms but has much lower compatibility than PCSX2 and struggles with many 3D games. DamonPS2 is a paid Android emulator with ads and a history of controversy in the emulation community; it offers no advantage over the free NetherSX2. For serious PS2 gaming, PCSX2 and NetherSX2 are the only recommendations that hold up.
How Emulator Compatibility Is Measured
When people say an emulator has high compatibility, they usually mean the percentage of the PS2 library that reaches a playable state. PCSX2 maintains a public compatibility list where each tested game is rated: Playable, Ingame, Menus, Intro, or Nothing. Playable means the game can be finished from start to end, though minor glitches may remain. Ingame means it runs but crashes or blocks progress somewhere. Before judging an emulator by a single game, check that game’s rating — a title rated Ingame on every emulator is a game problem, not an emulator problem.
Compatibility also depends on your hardware. A game rated Playable was tested on capable hardware, and a weak phone or old laptop may still struggle with it. Conversely, a powerful PC can brute-force through some issues that appear on weaker systems. This is why two users can report opposite experiences with the same game and emulator: the difference is usually hardware, settings, or BIOS version, not the emulator itself.
Another factor is game-specific fixes. PCSX2 includes a game database with per-title patches and settings applied automatically when a game loads. These game fixes handle quirks like broken shadows, missing effects, or crashes that only affect one title. When a new fix lands, that game jumps from Ingame to Playable without any user action. This database is a major reason PCSX2 compatibility keeps improving year after year, and it is something smaller emulators cannot match.
RetroArch, Frontends, and Other Ways to Play
Some players run PS2 games through RetroArch, a multi-system frontend. RetroArch on PC can use a PCSX2 core, which is essentially PCSX2 inside a unified interface with RetroArch shaders and controller profiles. The advantage is one interface for many consoles and access to RetroArch visual shaders. The disadvantage is added complexity: settings live in two layers, troubleshooting gets harder, and updates lag behind standalone PCSX2. Beginners should start with standalone PCSX2 and only move to RetroArch if they specifically want its shader and frontend features.
Cloud gaming services sometimes advertise PS2 titles, but these are re-releases or remasters, not emulation of your own discs, and they depend on subscriptions and internet quality. They do not replace owning your games and running them locally. For players who want their own library, their own saves, and no monthly fee, local emulation with PCSX2 or NetherSX2 remains the best route.
A Note on Paid Emulators and Clones
A final warning for shoppers: several paid apps and websites repackage the free PCSX2 or NetherSX2 code and sell it under a different name, sometimes with ads added or features removed. These clones offer nothing the free originals lack, and buying them does not support the developers who actually built the emulators. Worse, some clones bundle outdated versions with known bugs, so buyers get a worse experience than the free download. If an app store listing or website charges for a PS2 emulator, or demands a subscription to unlock basic features, treat it as a red flag. The legitimate emulators are free, open source, and available only from their official sites: pcsx2.net for PCSX2 and the official NetherSX2 GitHub page for Android. Getting your emulator from the official source also protects you from malware, which is a real risk with repackaged builds from unknown sites.
Frequently Asked Questions
What is the best PS2 emulator for PC?
PCSX2. It has the highest game compatibility, the best graphics upscaling, and active development across Windows, Linux, and Mac.
What is the best PS2 emulator for Android?
NetherSX2. It is the actively maintained successor to AetherSX2 and the best-performing free PS2 emulator on Android.
Is AetherSX2 still good?
It still works for existing users, but development has stopped. New users should choose NetherSX2 for ongoing fixes and better support on newer phones.
Do all PS2 emulators need a BIOS?
Yes. Every accurate PS2 emulator needs a BIOS dumped from a real PS2 console to boot games. No legitimate emulator includes one.
Are PS2 emulators free?
PCSX2 and NetherSX2 are both free and open source. Avoid any site charging for them.
Legal note: This site does not host BIOS files. Dump BIOS from your own PS2 console. See our PS2 BIOS dump guide for the legal method.