What is nehelper on a Mac? The Network Extension helper
What the nehelper process does in macOS, why it can use CPU or memory, and whether you can stop it.
What is nehelper?
nehelper supports Network Extensions: VPN apps, content filters and some security tools that inspect traffic.
Why is nehelper using CPU or memory?
Its activity follows your VPN or filter app; a misbehaving VPN can keep it busy.
Can I stop nehelper?
Disconnect or remove the VPN or filter app to stop its work. Check System Settings, General, Login Items & Extensions, Network Extensions.
Block an app from the internet covers what the firewall does and does not filter.
Common questions
Is nehelper safe on a Mac?
Yes. It is part of macOS. nehelper supports Network Extensions: VPN apps, content filters and some security tools that inspect traffic..
Can I quit nehelper?
Disconnect or remove the VPN or filter app to stop its work.