PlugCheck — Verify Minecraft plugin compatibility

PlugCheck is a free web tool that tells you whether your plugins are compatible with a target Minecraft version before you commit to the update. No server downtime. No trial-and-error. No account required. How it works: 1. Drop your .jar files onto the page (or type the plugin name) 2. Select your target MC version and platform (Paper, Spigot, Fabric, Forge) 3. Hit Check — results appear in seconds PlugCheck queries Hangar and Spiget in parallel to get real compatibility data, then runs a conflict detector against known plugin pairs that break together. Your .jar files are parsed locally in the browser — they never leave your machine. Results are cached for 6 hours so repeat checks are instant. Supports: Paper, Spigot, Fabric, Forge Source: Hangar + Spiget APIs Built for server admins who update carefully.