
Loadster
Loader.io
LoadForge
k6 Cloud
LoadUIWeb
LoadFocus
Loadium
LoadStorm
vscode.dev
replit
GitHub Codespaces
VS Code
StackBlitz
Cursor
CodeSandbox
CloudShell
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.
Loadster
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Lightweight: Designed for speed, it works everywhereโincluding vscode.devโwithout the bloat. - Source: dev.to / about 2 months ago
It's VSCode, so it's 90% similar to https://vscode.dev. - Source: Hacker News / 2 months ago
It is basically VS Code Web. Try https://vscode.dev/ to see how you feel. If you don't like it you won't like cider. - Source: Hacker News / 2 months ago
GitHub Codespaces provides 60 hours of free compute time every month, which is more than enough for scoped home assignments or interviews. Itโs a full VSCode in the browser at github.dev or vscode.dev. - Source: dev.to / 8 months ago
In VSCode extensions this is trivial, this is how you create the 'executable': https://github.com/floooh/vscode-kcide/blob/main/src/wasi.ts ...and this is how you run it: https://github.com/floooh/vscode-kcide/blob/2dfc621aade4a2be06b6a0e703bebb244f5e414c/src/assembler.ts#L33-L40 The asmx.wasm file is a vanilla POSIX cmdline tool (https://github.com/floooh/easmx) which loads and saves files, and the tool has been... - Source: Hacker News / 8 months ago
Loader.io - Loader.io is a simple cloud-based load testing service
replit - Code, create, andlearn together. Use our free, collaborative, in-browser IDE to code in 50+ languages โ without spending a second on setup.
LoadForge - Better, cheaper load testing for websites, APIs and servers
GitHub Codespaces - GItHub Codespaces is a hosted remote coding environment by GitHub based on Visual Studio Codespaces integrated directly for GitHub.
k6 Cloud - Managed load testing service built on top of the popular open-source project k6.
VS Code - Build and debug modern web and cloud applications, by Microsoft