VS Code
CodePen
GitHub
Node.js
RegExr
JSFiddle
CodeSandbox
Free ebook for the JS Beginners

Keyboard Tester Pro
Gamepad Tester
gamepadtest.tech
RigPolice
TestMyGamepad
HardwareTestingPro
Monkeytype
Test monitors, keyboards, mice, audio devices, controllers, and click speed. Fast, free, and no installation.

Which is more popular?
Based on our record, Eloquent JavaScript seems to be more popular. It has been mentioned 218 times since March 2021.
Website, pricing, platforms and company facts side by side.
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EJS
Eloquent JavaScript
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| Website | eloquentjavascript.net | hardwaretest.org |
| Pricing | ||
| Company | — | 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Eloquent JavaScript yet.
Hardware Test Pro is a privacy-first, browser-based hardware diagnostic suite designed to replace invasive driver software. Gamers and PC builders often have to install heavy "bloatware" (like Razer Synapse or Logitech G-Hub) just to check if their devices are working. Hardware Test Pro solves...
What each product offers, as listed by its team.

Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
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Walkthroughs and reviews on video.
Eloquent JavaScript A Modern Introduction to Programming 3rd Edition by Marijn Haverbeke review
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How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing Eloquent JavaScript and HardwareTest.org.
HardwareTest.org's answer:
Members of the r/pcmasterrace community
Competitive FPS Gamers (CS2, Valorant, Apex Legends players)
PC Hardware Reviewers and Tech Enthusiasts
IT Support Professionals
HardwareTest.org's answer:
The main competitors are native driver suites like Razer Synapse or Logitech G-Hub, which are often criticized for being "bloatware" (requiring 500MB+ storage, mandatory logins, and background processes). Hardware Test Pro offers a lightweight alternative: it loads instantly in your browser, requires no account, and collects no user telemetry. Compared to other web-based testers, it offers superior accuracy for high-performance gaming gear and includes a comprehensive suite of tools (Dead Pixel, Stick Drift) rather than just a single function.
HardwareTest.org's answer:
Our primary audience consists of competitive PC Gamers (FPS/MOBA), Esports enthusiasts, and PC Builders who need to verify their hardware performance. It is also widely used by IT professionals and hardware reviewers for quick troubleshooting (sanity checks) to diagnose if a mouse sensor is spinning out, if a controller has stick drift, or if a new monitor has dead pixels, without modifying the system software.
HardwareTest.org's answer:
Hardware Test Pro is the first privacy-first, browser-based diagnostic suite that solves the "1000Hz limitation" of web browsers. Unlike standard web tools that are capped by monitor refresh rates, we utilize advanced APIs (like getCoalescedEvents) to capture raw high-frequency input data. This allows users to accurately test 1000Hz, 4000Hz, and 8000Hz mouse polling rates and visualize sensor stability without installing a single byte of software. It combines Mouse, Gamepad (Stick Drift), and Screen diagnostics in one zero-install, zero-login package.
HardwareTest.org's answer:
The project started from a personal frustration: I bought a new gaming mouse and wanted to check its polling rate, but realized I had to install a 500MB driver suite just to see a single number. I decided to build a "No-Install" solution. After launching the MVP on the r/pcmasterrace subreddit, it went viral, resonating with thousands of gamers who were tired of invasive driver software. It has since evolved from a simple mouse tester into a complete hardware diagnostic hub driven by community feedback.
HardwareTest.org's answer:
Hardware Test Pro is built with a modern, performance-focused stack:
Frontend: React & Next.js for a fast, reactive UI.
Styling: Tailwind CSS for a clean, responsive design.
Core APIs: High Resolution Time API (performance.now) and Pointer Events API (getCoalescedEvents) to bypass the browser event loop for microsecond-precise input tracking.
Share your experience with using Eloquent JavaScript and HardwareTest.org. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.

We have no reviews of Eloquent JavaScript yet. Be the first one to post
Perfect for quickly testing peripherals. I buy and sell a lot of used controllers and mice, and this site saves me so much time. No login, no downloads, just plug and test. The gamepad tester instantly showed me the...
Recommendations tracked on public social media and blogs since March 2021.

If you haven’t read Eloquent JavaScript , go check it out. It’s one of my all-time favourite programming books — hands down. - Source: dev.to / 12 months ago
Videos, blogs, text-based teachings, YouTube project-based learning, books, and the like are all examples of various methods and mediums of acquiring skills, especially in the software engineering industry. As I continue to navigate... - Source: dev.to / almost 2 years ago
Seconded. I won't recommend it and no one I know has recommended it for a decade. It's hard for someone who doesn't know JS to know which parts has changed and is no longer the way to do things. https://github.com/getify/You-Dont-Know-JS... - Source: Hacker News / about 2 years ago
Tracking HardwareTest.org since Jan 2026.
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