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Marcus T.
★★★★★· 8 days ago
Used this to audit a component library I inherited—caught 12 unnecessary re-renders in a form wizard that were tanking performance. The auto-fix suggestions saved me hours of manual refactoring.
Hand it your React code and get back a quality report: performance traps, anti-patterns, and likely bugs, each with a fix you can apply. ## What it does - **Performance diagnosis:** unnecessary re-renders, unstable references, and expensive work in render, traced to the component and line - **Anti-pattern flags:** effect misuse, derived-state-in-state, prop drilling, and key misuse, called out with why they bite - **Bug-risk review:** stale closures, missing dependencies, and races in async effects surfaced before they ship - **Fix suggestions:** every finding paired with a concrete code change, not just a warning - **Rule-based checks:** a configurable rule set (`inspect`, `why`, `rules`) you can run in CI or on demand ## Where it fits - **A front-end engineer in code review:** "Review this PR's components for re-render traps and stale effects." A prioritized report with line-level fixes before you approve. - **A lead onboarding a codebase:** "Audit src/ for React anti-patterns and rank by impact." A triaged list to work through. - **An engineer chasing a slow page:** "Why does this list re-render on every keystroke?" The offending reference traced, with the memo or split that fixes it. ## How it works 1. **Point it at your code:** a file, a component, a PR diff, or a directory. 2. **It runs the diagnosis:** rules and analysis flag performance traps, anti-patterns, and bug risks. 3. **You get a report back:** findings ranked by impact, each with an explanation and a suggested fix to review and apply. Built for front-end engineers and teams running React code review. Every finding is a suggestion for you to review; no code changes without your approval.
39 ratings · showing the 12 most relevant
Marcus T.
Used this to audit a component library I inherited—caught 12 unnecessary re-renders in a form wizard that were tanking performance. The auto-fix suggestions saved me hours of manual refactoring.
李梅 L.
找到了我们产品中多个 useEffect 的依赖数组问题。建议很实用，特别是关于闭包陷阱的解释，团队现在用它做标准 code review。
Jessica H.
Great at spotting anti-patterns and performance issues in generated code. Wish it had more granular control over which rules to enforce, but the defaults caught real bugs in our checkout flow.
Raj P.
Integrated this into our CI pipeline for frontend PRs. It flagged a memory leak in a custom hook that our manual review missed. Solid tool.
Sophie D.
Useful for catching obvious issues like missing keys in lists, but sometimes it's overly strict about memoization. Not every component needs React.memo. Still helpful as a second opinion though.
王浩 W.
我们用 Claude 生成了一批 React 组件，然后丢给 React Doctor 检查。发现了三个严重的状态管理 bug 和一堆性能问题。节省了好多 QA 时间。
Carlos M.
Works well for identifying performance traps and outdated patterns. The report is clear, though I'd appreciate better explanation for why certain patterns are actually problematic in our specific use case.
Priya S.
Been using it to review code from junior devs' AI-assisted coding. Catches things I'd normally miss in 1:1 review—infinite loops, stale closures, prop drilling nightmares. Total lifesaver.
Yuki T.
It works but sometimes the suggestions contradict each other (wanted memo in one place, no memo in another). Might need to tune the rule set for my team's style, but the core detection is solid.
Aisha K.
Reviewed my entire component folder (40+ files) for latent bugs. Found 8 issues I'd never have caught manually, especially around event listener cleanup in useEffect. Worth every minute.
Fernando O.
Good at spotting real problems in auto-generated React code. Sometimes gives false positives on newer patterns, but I just ignore those and trust the rest of the analysis.
Mei Z.
用来检查 GPT 生成的 React 代码真的非常有用。自动修复建议质量高，我们少了一堆线上 bug。现在是我们审查流程的标准部分。