Load Testing
Provider 
Founded 2011
Sells To Enterprise
Pricing Model Recurring, Software, Usage-based
Ownership Private, Venture-backed

Artillery is an open-source cloud-scale load testing platform for engineering teams.
Artillery is a modern, powerful, and easy-to-use load testing platform for teams shipping high-performance backends. It supports HTTP, WebSocket, Socket.io, and gRPC, with scenarios defined as YAML or JavaScript.
Tests can be run locally or in the cloud at scale, providing real-time metrics and detailed performance reports to help engineering teams identify bottlenecks and ensure reliability.
Apache Software Foundation

Apache JMeter
apache.org
Grafana Labs

Grafana k6
grafana.com
Speedscale

Speedscale Platform
speedscale.com
| Attribute | Load Testing | Apache JMeter | Grafana k6 | Speedscale Platform | |
|---|---|---|---|---|---|
| Provider | |||||
| Founded | 2011 | 1999 | 2014 | 2020 | |
| Sells To | Enterprise | — | B2B, Small Business | Enterprise | |
| Pricing Model | Recurring, Software, Usage-based | — | Licensing, Recurring, Software, Subscription | Recurring, Software | |
| Ownership | Private, Venture-backed | Nonprofit | Venture-backed | Private equity-backed, Venture-backed |
Provider 
Founded 2011
Sells To Enterprise
Pricing Model Recurring, Software, Usage-based
Ownership Private, Venture-backed
Provider 
Founded 1999
Sells To —
Pricing Model —
Ownership Nonprofit
Provider 
Founded 2014
Sells To B2B, Small Business
Pricing Model Licensing, Recurring, Software, Subscription
Ownership Venture-backed
Provider 
Founded 2020
Sells To Enterprise
Pricing Model Recurring, Software
Ownership Private equity-backed, Venture-backed


Postman API Platform is a collaborative API development and testing platform with built-in mock server, collection runner, and documentation tools.


Machine-learning test selection platform shipping quality software faster with less waiting.

Managed cloud mocking of third-party APIs with stateful scenarios for developer testing.



StableBrowse Agent Experience Platform helps devtool, infrastructure, and SaaS companies make their products usable by AI agents.


TesterArmy tests apps in plain language on every pull request across web, iOS, and Android.


Ito builds each pull request from source, runs real user flows sandboxed, and posts evidence-backed findings in the PR.


Momentic writes, runs, and self-heals plain-English end-to-end tests on every pull request.



Stateful API sandboxes for testing AI agents without hitting live third party services.


Stateful twins of APIs, CLIs, and MCP servers for testing agents with seeded scenarios.


Open-source observability platform combining metrics, logs, and traces with Grafana dashboards for cloud-native monitoring.
Postman API Platform is a collaborative API development and testing platform with built-in mock server, collection runner, and documentation tools.

Machine-learning test selection platform shipping quality software faster with less waiting.

Managed cloud mocking of third-party APIs with stateful scenarios for developer testing.
Buildkite is a continuous integration and delivery platform with pipelines, test optimization, package registries, and hosted agents.

StableBrowse Agent Experience Platform helps devtool, infrastructure, and SaaS companies make their products usable by AI agents.

TesterArmy tests apps in plain language on every pull request across web, iOS, and Android.

Ito builds each pull request from source, runs real user flows sandboxed, and posts evidence-backed findings in the PR.

Momentic writes, runs, and self-heals plain-English end-to-end tests on every pull request.

An AI-driven Java unit testing and static analysis tool from Parasoft.

Stateful API sandboxes for testing AI agents without hitting live third party services.

Stateful twins of APIs, CLIs, and MCP servers for testing agents with seeded scenarios.

Open-source observability platform combining metrics, logs, and traces with Grafana dashboards for cloud-native monitoring.
