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Enterprise level performance testing solution based on The Grinder

We, Naver, uses nGrinder to test the our all products having 100 million users

nGrinder is a platform for stress tests that enables you to execute script creation, test execution, monitoring, and result report generator simultaneously. The open-source nGrinder offers easy ways to conduct stress tests by eliminating inconveniences and providing integrated environments.

nGrinder consists of two major components.



You can download latest version in the following link/

Quick start

You can start nGrinder by executing following command.

java -jar ngrinder-controller-{version}.war

And then access it by using a browser. http://localhost:8080


You can find the installation guide at the following link.

You can find the user guide at the following link.

Road Map

The explicit roadmap of nGrinder enables it to be a most effective and efficient performance test tool.

Check out our roadmap :


nGrinder welcomes all contributions from users. Please make all pull requests against master branches.

You can find general developer documents at the following link.


For transparency and insight into our release cycle, and to strive to maintain backward compatibility, nGrinder will be maintained under the Semantic Versioning guidelines to the greatest extent possible.

Releases will be numbered in the following format:


Releases will be constructed based on the following guidelines:

Q/A and Bug tracker

Found a bug? Got an idea for an enhancement? Please create an issue here on GitHub so you can notify us!

You can join the our mailing list.

Copyright and license

Copyright 2012-present NAVER Corp.

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at

     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License. 

nGrinder includes the following software and libraries. See the LICENSE folder for thes license and copyright details for each.