Reactime

A Chrome extension for time travel debugging and performance monitoring in React applications.

Reactime is an open-source Chrome extension designed for React developers to enhance debugging and performance monitoring. It offers time travel debugging by recording snapshots of application state and accessibility trees, allowing developers to jump between and inspect these snapshots easily. The extension features a provider/consumer panel to visualize useContext hook relationships and supports performance metrics such as component render time and frequency. Compatible with popular frameworks like Gatsby, Next.js, and Remix, Reactime also supports TypeScript and React Router.

The latest version introduces a modernized UI with dark mode, improved time travel controls, and restored accessibility tree features for better usability and workflow. Reactime integrates with React Developer Tools to access the Fiber tree, making it an essential utility for optimizing React applications. It includes tutorials and supports snapshot import/export, prop visualization, and snapshot series comparison, boosting both productivity and insight during development.

By:
Reactime
Users:
3,000+
Rating:
4.74
(35)
Version:
26.1 Last updated: 2025-01-08
Creation date:
2020-03-08
Risk:
Very high risk impact Moderate risk likelihood
Permissions:
  • contextMenus
  • tabs
  • activeTab
  • scripting
  • debugger
  • alarms
Host permissions:
  • <all_urls>
Size:
819.20K
Email:
re*****@gmail.com
Full description:
See detailed description
Source:
Chrome Web Store
Updated:
a day ago

User reviews

Pros
  • Time-travel debugging feature saves time troubleshooting React applications.
  • Helps greatly with debugging React apps, making debugging complex issues easier.
  • Data flow visualization is very useful and fast, including support for Recoil state management.
  • Easy to implement and integrates well with existing React projects.
  • Highly recommended and considered essential by React developers.
Cons
  • Latest update shows a random number on browser tabs which is annoying.
  • Spamming console logs in codebase; maintainers should add eslint rule to prevent logs.
  • Extension does not work well with large applications using various libraries and mixed component types.
Recent reviews
Very efficient dev tool!
by Hakase, 2025-01-08

Essential Tool for React Developers! Reactime is an absolute game-changer for React development. As someone working with React applications, the time-travel debugging feature has saved me countless hours of troubleshooting. You can literally move back and forth through your app's state changes and see exactly what happened at each step.
by Garrett Chow, 2025-01-07

This is a very useful tool to debug React applications! Looking forward to using this!
by Andrew Byun, 2023-10-26
View all user reviews ›

Extension safety

Risk impact

Reactime requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows for debugging of other web apps and extensions, which can intersect with sensitive information and security boundaries.
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Risk likelihood

Reactime is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this extension.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details

Promo images

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