
Loadster
Loader.io
k6 Cloud
LoadForge
LoadUIWeb
LoadFocus
Loadium
OctoPerf
Pingy CLI
Superplate
Fireshell
Astrel
Webpack
Grunt
Parcel
Webiny
Loadster is a cloud-based load testing and synthetic monitoring platform for engineers who want to know how their applications behave under real traffic.
Tests run with three types of bots: Protocol Bots for HTTP testing, headless Browser Bots that render full pages and execute JavaScript in real Chrome browsers, and Playwright bots for when you want to use Playwright JS directly.
Loadster scripts can be recorded from Chrome or Firefox with the Loadster Recorder extension, edited in a built-in editor with variables, datasets, and shared includes, and then replayed from multiple cloud regions.
Each test run returns detailed page timings (TTFB, FCP, LCP, CLS, etc) alongside resource waterfalls, screenshots, and full traces you can step through in a self-hosted trace viewer. Tests scale from a handful of virtual users (bots) to hundreds of thousands across distributed cloud engines without you provisioning anything.
The same scripts can be set up as monitors that run on a schedule from chosen regions. Notification policies route incidents to email, SMS, voice, or integrations like Slack and PagerDuty. Projects, roles, and shared test history keep teams aligned on what passed, what failed, and what changed.
Pricing is usage-based via Loadster Fuel, with 50 free units on sign-up and no credit card to start.
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Loader.io - Loader.io is a simple cloud-based load testing service
Superplate - The frontend boilerplate with superpowers
k6 Cloud - Managed load testing service built on top of the popular open-source project k6.
Fireshell - Fiercely quick front-end boilerplate and workflows
LoadForge - Better, cheaper load testing for websites, APIs and servers
Astrel - Astrel is a web app that allows you to manage any aspects of your application, remotely, in real-time.Check out the message below to unlock a lifetime access to our paid plan for free when Astrel comes out of beta!