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

CodeAnt AI
CodeRabbit
DeepSource
GitLab Duo
CodeReviewBot AI
CodeReviewr
GitHub Copilot
AI-Powered Code Reviews for GitLab, GitHub & Azure DevOps&Bitbucket - Instant Analysis, Security Detection & Conversational Copilot& Review agents. Zero Setup Required. Open Source.

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 | thinkreview.dev |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from the United Kingdom · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Eloquent JavaScript yet.
ThinkReview is a browser extension for AI-assisted code reviews on GitHub, GitLab, Azure DevOps, and Bitbucket. It combines fast review summaries, security and best-practice findings, and structured code suggestions with a practical reviewer workflow: reviewers keep control, can copy/edit...
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
Recommended for
Walkthroughs and reviews on video.
Eloquent JavaScript A Modern Introduction to Programming 3rd Edition by Marijn Haverbeke review
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ThinkReview Gitlab MR Copilot
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing Eloquent JavaScript and ThinkReview.
ThinkReview's answer:
Its biggest differentiator is the zero-configuration setup. Unlike many competitors, ThinkReview works instantly as a browser extension without needing complex CI/CD integration, setup tokens, or granting access to your entire GitLab/GitHub project. It enhances the developer's existing workflow directly in the browser.
ThinkReview's answer:
You should choose ThinkReview for its simplicity and speed. It's the fastest way to start with AI code reviews—install the extension, and you're done. It empowers individual developers to improve their reviews immediately, without the overhead and enterprise-level pricing of deeply integrated tools.
ThinkReview's answer:
Our primary audience consists of individual developers and small to medium-sized teams using GitLab. It's perfect for developers and team leads who want to improve code quality and efficiency without a complex, top-down implementation process.
ThinkReview's answer:
The story is simple: it was born from the founder's frustration with code reviews being a slow, repetitive bottleneck. The goal was to create a tool that was easy to install, worked out of the box, and acted as a true AI copilot to assist the human reviewer, not just an automated bot.
ThinkReview's answer:
The core of the product is a browser extension built with JavaScript, HTML, and CSS. It communicates securely with major AI and Large Language Model (LLM) APIs to provide its intelligent feedback.
ThinkReview's answer:
As a recently launched tool, our primary user base consists of individual developers and growing teams who have adopted ThinkReview to streamline their personal and team workflows. We are focused on building this grassroots support before targeting large enterprise customers.
Share your experience with using Eloquent JavaScript and ThinkReview. For example, how are they different and which one is better?
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 / about 1 year 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 ThinkReview since Oct 2025.
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