Pokemon ROM Randomizer Online
Randomize Pokemon games Gen 1-5 instantly in your browser. No download required!
Works with Pokemon Red, Blue, Yellow, Gold, Silver, Crystal, Ruby, Sapphire, Emerald, and more!
Why Use Our Pokemon Randomizer?
Transform your Pokemon experience with infinite replayability
🎮 Randomize Everything
Wild Pokemon encounters, trainer battles, starter Pokemon, items, TMs, evolution methods, movesets, and Pokemon types – customize it all!
⚡ Instant Browser Tool
No software download needed! Upload your ROM, select randomization settings, and download your customized Pokemon game instantly.
🏆 Popular Modes
Nuzlocke mode, no trade evolutions, custom difficulty settings, race mode for speedrunners, and challenge runs!
How to Randomize Pokemon ROMs
Get started in 3 simple steps
1️⃣
Upload Your ROM
Select any Pokemon game ROM from Generation 1-5
2️⃣
Choose Settings
Pick what to randomize: starters, wild Pokemon, trainers, and more
3️⃣
Download & Play
Get your randomized ROM instantly and start your unique adventure
📸 See It In Action
Ready to Create Your Perfect Pokemon Game?
Join thousands of trainers enjoying completely unique Pokemon adventures!
Frequently Asked Questions
Which Pokemon games can I randomize?
Our randomizer supports all main series Pokemon games from Generation 1-5: Red, Blue, Yellow, Gold, Silver, Crystal, Ruby, Sapphire, Emerald, FireRed, LeafGreen, Diamond, Pearl, Platinum, HeartGold, SoulSilver, Black, White, Black 2, and White 2.
Is the Pokemon Randomizer free to use?
Yes! Our Pokemon ROM randomizer is completely free to use. No registration, no download, no hidden fees. Just upload your ROM and start randomizing!
Do I need to download any software?
No! Unlike the Universal Pokemon Randomizer, our tool works entirely in your browser. No Java, no downloads, no installation required. Works on Windows, Mac, and Linux!
What can I randomize in Pokemon games?
You can randomize: starter Pokemon, wild Pokemon encounters, trainer Pokemon, gym leaders, elite four, Pokemon types, movesets, TM/HM locations, item locations, evolution methods, and much more! Create completely unique Pokemon experiences every time.
Note: For best performance, use a desktop browser. Mobile users should enable desktop mode. Gen 4-5 uploads may take up to 60 seconds.