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Three.js DevTools

Chrome extension by Mr.doob · Productivity · Developer

  • Established publisher

A Chrome extension in Productivity · Developer with 20 000 users, an established extension. Audience over the last 30 days: unchanged.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 1 screenshot

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
20 000
Rating
4.0 (18 ratings)
Users, last 30 days
Unchanged (the store rounds this count to 10 000, so it moves only between steps)
Rating, last 30 days
Steady over 30 days
Version
1.19
Updated in the store
2026-10-26
Published
2025-04-06
Manifest
V3
Browser access
1 permission

How it has moved

Users
unchanged since 01.10
20k · 1 reading
2026-10-26: released 1.19
  1. 2026-10-3120k
Rating
unchanged since 01.10
reviewsrating 4.00 · 1 reading
2026-10-26: released 1.19
  1. 2026-10-31reviews18rating4.00
Users
unchanged since 31.08
20k · 2 readings
2026-10-26: released 1.19
  1. 2026-08-3120k
  2. 2026-10-3120k
Rating
unchanged since 31.08
reviewsrating 4.00 · 2 readings
2026-10-26: released 1.19
  1. 2026-08-31reviews18rating4.00
  2. 2026-10-31reviews18rating4.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

No site access is declared in the manifest, so it cannot read the pages you open on its own.

The full permission history for this extension

Version history

  1. Version 1.19

What changed recently

  1. Package size changed
  2. Released version 1.19 (was 1.18)

The publisher

Mr.doob publishes 4 listings we track, 21k users between them. Listed website: threejs.org.

  1. 3D File Viewer Mr.doob · published 2019-10-31 1k users ★ 4.0
  2. Image File Viewer Mr.doob · published 2020-03-01 44 users
  3. Bandcamp Cast Mr.doob · Make Chrome Yours · Functionality · published 2026-05-22 22 users

Like this one

Listings the catalog judges closest in what they say they do.

  1. Needle Inspector — DevTools & MCP for three.js Describes nearly the same job, smaller audience 5k users ★ 5.0
  2. React Three DOM Describes nearly the same job, smaller audience 25 users
  3. 3D Viewer Describes nearly the same job, smaller audience 668 users ★ 5.0
  4. CanvaSpy Describes nearly the same job, smaller audience 135 users
  5. Grid Engine DevTools Describes nearly the same job, smaller audience 77 users ★ 5.0

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

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HTML

<a href="https://extops.dev/extensions/jechbjkglifdaldbdbigibihfaclnkbo"><img src="https://extops.dev/extensions/jechbjkglifdaldbdbigibihfaclnkbo/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store has not changed these figures since 2026-08-31, when we first saw this listing. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built