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Web Serial Online

Chrome extension by pangmengchen · Productivity · Developer

  • Established publisher

A Chrome extension in Productivity · Developer with 635 users, barely installed.

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

What the developer says, and 3 screenshots

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

Users
635
Rating
5.0 (1 ratings)
Users, last 17 days
+26
Rating, last 30 days
Not watched long enough to say
Version
0.3
Updated in the store
2024-08-07
Published
2024-07-17
Manifest
V3
Browser access
2 permissions

How it has moved

Users
+26 since 31.08
602-635 · 12 readings
2026-09-02: no longer featured2026-09-02: gained the good publisher record badge
  1. 2026-08-31609
  2. 2026-09-02610no longer featuredgained the good publisher record badge
  3. 2026-09-03616
  4. 2026-09-04613
  5. 2026-09-06602
  6. 2026-09-07609
  7. 2026-09-08612
  8. 2026-09-09604
  9. 2026-09-10623
  10. 2026-09-13631
  11. 2026-09-15635
  12. 2026-09-16635
Rating
unchanged since 31.08
reviewsrating 5.00 · 12 readings
2026-09-02: no longer featured2026-09-02: gained the good publisher record badge
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-02reviews1rating5.00no longer featuredgained the good publisher record badge
  3. 2026-09-03reviews1rating5.00
  4. 2026-09-04reviews1rating5.00
  5. 2026-09-06reviews1rating5.00
  6. 2026-09-07reviews1rating5.00
  7. 2026-09-08reviews1rating5.00
  8. 2026-09-09reviews1rating5.00
  9. 2026-09-10reviews1rating5.00
  10. 2026-09-13reviews1rating5.00
  11. 2026-09-15reviews1rating5.00
  12. 2026-09-16reviews1rating5.00
Users
+26 since 31.08
602-635 · 12 readings
2026-09-02: no longer featured2026-09-02: gained the good publisher record badge
  1. 2026-08-31609
  2. 2026-09-02610no longer featuredgained the good publisher record badge
  3. 2026-09-03616
  4. 2026-09-04613
  5. 2026-09-06602
  6. 2026-09-07609
  7. 2026-09-08612
  8. 2026-09-09604
  9. 2026-09-10623
  10. 2026-09-13631
  11. 2026-09-15635
  12. 2026-09-16635
Rating
unchanged since 31.08
reviewsrating 5.00 · 12 readings
2026-09-02: no longer featured2026-09-02: gained the good publisher record badge
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-02reviews1rating5.00no longer featuredgained the good publisher record badge
  3. 2026-09-03reviews1rating5.00
  4. 2026-09-04reviews1rating5.00
  5. 2026-09-06reviews1rating5.00
  6. 2026-09-07reviews1rating5.00
  7. 2026-09-08reviews1rating5.00
  8. 2026-09-09reviews1rating5.00
  9. 2026-09-10reviews1rating5.00
  10. 2026-09-13reviews1rating5.00
  11. 2026-09-15reviews1rating5.00
  12. 2026-09-16reviews1rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once 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.

  • Act on the current tab, but only after you click it activeTab
  • Declares serial

The full permission history for this extension

What changed recently

  1. Store badges changed

The publisher

pangmengchen publishes 5 listings we track, 2k users between them.

  1. ESP Tool pangmengchen · Productivity · Developer · published 2024-08-15 996 users ★ 5.0
  2. TOOCAA Connect pangmengchen · Productivity · Tools · published 2025-07-25 589 users
  3. Image to GCode Tool pangmengchen · Productivity · Tools · published 2026-03-11 45 users
Show 1 more from this publisher
  1. DXF2GCode pangmengchen · Productivity · Tools · published 2026-03-14 16 users

Like this one

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

  1. Serial Monitor Describes nearly the same job, smaller audience 3k users ★ 3.6
  2. Serial Communication Tool - Web Serial Describes nearly the same job, smaller audience 285 users ★ 5.0
  3. Serial Debug Terminal Describes nearly the same job, smaller audience 55 users ★ 5.0
  4. Nuwa Serial Port Debug Tool Describes nearly the same job, smaller audience 55 users ★ 5.0
  5. UARTLab Describes nearly the same job, smaller audience 7 users

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.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.