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Flowblock: Notion Diagrams & Flowcharts

Chrome extension by Kagoshima Software · Productivity · Tools

A Chrome extension in Productivity · Tools with 44 users, barely installed.

Specific sites only: 3 match patterns.

What the developer says, and 5 screenshots

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

Users
44
Rating
not rated yet
Users, last 17 days
+2
Version
1.0.11
Updated in the store
2026-06-12
Published
2026-04-24
Manifest
V3
Browser access
3 permissions, 3 site patterns

How it has moved

Users
+2 since 31.08
42-44 · 8 readings
  1. 2026-08-3142
  2. 2026-09-0343
  3. 2026-09-0442
  4. 2026-09-0742
  5. 2026-09-0843
  6. 2026-09-1342
  7. 2026-09-1544
  8. 2026-09-1644
Users
+2 since 31.08
42-44 · 8 readings
  1. 2026-08-3142
  2. 2026-09-0343
  3. 2026-09-0442
  4. 2026-09-0742
  5. 2026-09-0843
  6. 2026-09-1342
  7. 2026-09-1544
  8. 2026-09-1644

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

Specific sites only: 3 match patterns.

  • https://api.notion.com/*
  • https://prod-files-secure.s3.us-west-2.amazonaws.com/*
  • https://*.notionusercontent.com/*
  • Sign you in with a Google account identity
  • Schedule work to run later alarms
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

Kagoshima Software publishes 4 listings we track, 415 users between them. Listed website: flowblock.app.

  1. Trello Attachment Downloader Kagoshima Software · Productivity · Tools · published 2026-03-04 369 users ★ 5.0
  2. Airtable Attachment Downloader Kagoshima Software · Productivity · Workflow · published 2026-09-11 1 users (last published figure)
  3. Notion PDF Export - Print and save Notion pages as PDF Kagoshima Software · Productivity · Tools · published 2026-09-12 1 user

Like this one

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

  1. Notion Charts Describes nearly the same job, smaller audience 265 users
  2. Notion x Excalidraw Helper Describes nearly the same job, smaller audience 849 users ★ 4.6
  3. draw.io for Notion Describes nearly the same job, with an established audience 50k users ★ 3.0
  4. JotLayer - Draw on Notion & Handwrite Notes Describes nearly the same job, smaller audience 131 users ★ 5.0
  5. Flow2Chat Describes nearly the same job, smaller audience 17 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.

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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.