What are user scripts?
User scripts put you in control of your browsing experience. Once installed, they automatically make the sites you visit better by adding features, making them easier to use, or taking out the annoying bits. The user scripts on Greasy Fork were written by other users and posted to share with the world. They're free to install and easy to use.
Step 1: install a user script manager

To use user scripts you need to first install a user script manager. Which user script manager you can use depends on which browser you use.
Desktop Mobile (Android) Mobile (iOS)
- Chrome: Tampermonkey or Violentmonkey
- Firefox: Greasemonkey, Tampermonkey, or Violentmonkey
- Safari: Tampermonkey or Userscripts
- Microsoft Edge: Tampermonkey or Violentmonkey
- Opera: Tampermonkey or Violentmonkey
- Maxthon: Violentmonkey
- AdGuard: (no additional software required)
- Firefox: Greasemonkey, Tampermonkey, or Violentmonkey
- Microsoft Edge: Tampermonkey
- Maxthon: Violentmonkey
- Dolphin: Tampermonkey
- UC: Tampermonkey
- XBrowser
- Safari: Tampermonkey or Userscripts
- Gear: (no additional software required)
Step 2: install a user script

Browse this site to find a user script you want to try. Here is a sample of the most popular scripts:
- Slither.io bot - Bot for Slither.io
- Diep.io Mod Menu - Loop upgrade custom builds, render aim line, render factory guide circle.
- Nexus Download Collection - Download every mods of a collection in a single click
- Happymod v7[Just saw is v7] - HappyMod Users are Pro. HappyMod creators are super Pro.
- SwordMasters.io Kill Multiplier via WS Duplication - 적 공격 메시지를 중복 전송하여 kill 데이터를 부풀리는 스크립트 (슬라이더로 1~50000 조정)
Once you've found a user script, click the green install button on the user script's page, and your user script manager will ask you to confirm the install.
Step 3: use the user script
Go to the site the user script affects. It should automatically do its thing. After trying out the user script for a while, go back to where you installed the user script and leave some feedback for the user script's author.