In the end, the "serial key" quest is a relic of the past. Modern developers generally find that the peace of mind and automatic updates of a legitimate JetBrains Account are worth far more than the risks of a shady download. License Key issues after ReSharper 10/2016.x upgrade
: You can download a 30-day free trial of the latest ReSharper version to test all its features without a key. Troubleshooting License Issues