Play Super
Mario Bros
Online. Free.
The ultimate browser destination for Super Mario fans. Classic NES + Switch 2 — no download, no account, no cost.
Active Players
12,857
Daily Sessions
45,922
Uptime
99.9%
Version
2.0.4 Pro
Explore
Play Instantly
No downloads required — start playing immediately in your browser.
100% Free
Completely free to play with no hidden costs or subscriptions.
Mobile Friendly
Optimized for desktop, tablet, and mobile devices.
High Scores
Compete with players worldwide and track your progress.
All 8 Worlds
32 levels across 8 unique worlds
Enemies
Every enemy in Super Mario Bros
How to Defeat Every Enemy
Which methods work — and which don't
Goomba
Defeat guide →
Koopa Troopa
Defeat guide →
Koopa Paratroopa
Defeat guide →
Piranha Plant
Defeat guide →
Buzzy Beetle
Defeat guide →
Hammer Bro
Defeat guide →
Lakitu
Defeat guide →
Spiny
Defeat guide →
Blooper
Defeat guide →
Cheep-Cheep
Defeat guide →
Bullet Bill
Defeat guide →
Boo
Defeat guide →
Firebar
Defeat guide →
Bowser
Defeat guide →
Trending Titles
All systems →
Level Index
All 32 levels — click any to explore
Frequently Asked
Is this official Nintendo software?
No — this is an unofficial web-based emulator for browser gaming. We're independent fans, not affiliated with Nintendo.
What do I need to play?
Any modern browser works. Chrome, Safari, or Firefox recommended. No install, no account.
Can I save my progress?
Yes. Game state is automatically cached to your browser's local storage.
Ready to play?
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Free in your browser. No download. No account. Just Mario.
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