React Performance Tool

Nominated for the Productivity Booster award at React Open Source Awards 2020

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Track, Revert,
and Visualize your State

ReacTime Demo


State Snapshot Text Display

See your application state in stylized, interactive JSON format.

Time Travel Live Render

Simulate any state change from history in the DOM with a click of a button.

Save Snapshot Series

Save a series of recorded state snapshots for analysis later on.

Web Metrics

Improve user experience with insight into Web Metrics such as LCP, FCP, FID, TTFB.

Snapshot History Display

Monitor history as you time travel or make new changes to state.

Components Map Display

Visualize relationships between components in a collapsible tree for a given snapshot.

Atom and Selector Relationships

Visualize the mapping of Atoms and Selectors to components in Recoil Apps

Components Performance Display

Visualize the relative latency trends introduced by re-rendering each component on state change.

Download, Upload, and Persist

Save your state history for future tests.
Keep your state changes on app reload.

Re-render Optimization

Improve performance by preventing unnecessary render cycles.

Gatsby support

Reactime offers full support for Gatsby applications.

Next.js support

Reactime offers debugging and performance tools for Next.js apps.

* Some features not available with every state managment solution.


Interested in contributing? Reactime is open-source. Help make React state debugging easier!

Abaas Khorrami


Alexander Landeros


Ali Rahman




Becca Viner


Bryan Lee


Caitlyn Chan


Caner Demir


Carlos Perez


Chris Flannery


Chris Guizzetti


Cole Styron


David Bernstein


David Chai


Dennis Lopez


Edwin Menendez


Ergi Shehu


Gabriela Aquino


Greg Panciera


Haejin Jo


Hien Nguyen


Jack Crish


Jason Victor


Joshua Howard


Joseph Stern


Josh Kim


Kevin Fey


Kevin Ngo


Kim Mai Nguyen


Nate Wa Mwenze


Nathan Richardson


Prasanna Malla


Rajeeb Banstola


Raymond Kwan


Rocky Lin


Ruth Anam


Ryan Dang


Sanjay Lavingia


Sierra Swaby


Tania Lind


Vincent Nguyen


Yujin Kang