XState Ninja

Name: XState Ninja
Rating: 4 (1 reviews)
Author: rlaffers

A powerful devtool for XState state machines

As of May 2026, XState Ninja has 444 users and a 4.00/5 rating from 1 reviews in the Developer Tools category.

rlaffers Developer Tools

Chrome Web Store ↗.crx

Users−4.5%

444

Rating0%

4.00

1 reviews

Reviews0%

Version

1.7.2

Manifest V3

History

3 snapshots

Tracking since Apr 1, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 1, 2026	465	4.00	1	1.7.2
Apr 29, 2026	447	4.00	1	1.7.2
May 27, 2026	460	4.00	1	1.7.2
Now	444	4.00	1	1.7.2

Permissions & access

Permissions: storage
Host access: None declared

Screenshots

About

XState Ninja is a devtool panel for tracking state machines implemented with the XState library. It provides a better developer experience than the widely used Redux devtools extension for  monitoring state machines. XState Ninja is more ergonomic and removes common pain points experienced with Redux devtools:

👉 more than one machine can be tracked at once in multiple swimlanes
👉 machine state is clearly visible (including parallel states)
👉 no events are missed regardless of when the devtool was opened
👉 side effects (invoked services and actions) are clearly visible
👉 all invoked or spawned actors are monitored, including invoked/spawned callbacks and promises
👉 dead actors are clearly marked (💀) so there is no confusion if multiple machines of the same ID are started