Flowblock: Notion Diagrams & Flowcharts

Tracking since Apr 25, 2026.

Changelog

• Jun 1, 2026
  short_description

  Edit AI-generated Mermaid flowcharts in Notion. Excalidraw and draw.io diagrams, as native Notion image blocks.

  Add Excalidraw and draw.io diagrams to Notion pages. Import Notion AI Mermaid flowcharts in one click. Native Notion blocks.

• Jun 1, 2026
  name

  Flowblock - AI Flowchart Editor for Notion

  Flowblock: Notion Diagrams & Flowcharts

• May 25, 2026
  description

  Turn AI-generated flowcharts into editable diagrams.
  
  Notion AI is great at sketching flowcharts - but it hands you a static Mermaid code block you can't really edit. Flowblock turns those AI-generated diagrams into real, editable drawings, right inside Notion. No new tab. No copy-paste. No external service.
  
  
  HOW IT WORKS
  
  1. Notion AI gives you a Mermaid block. Ask it to map a workflow, decision tree, or system diagram - it produces a mermaid code block.
  
  2. Click Import. Hover the Mermaid block in Notion. Flowblock adds an Import button. One click parses the source and opens a real, editable diagram in a modal.
  
  3. Edit, save, done. Drag a node, recolor, add a label. Save and the Notion block becomes a clean Excalidraw or draw.io drawing - yours forever, even if you uninstall Flowblock.
  
  
  TWO EDITORS, YOUR CHOICE
  
  – Excalidraw - the beloved hand-drawn style. Perfect for sketches, brainstorming, casual diagrams.
  – draw.io - rigorous, technical diagrams. UML, BPMN, network topology, system architecture.
  
  Pick the right tool per diagram. Both save as native Notion image blocks.
  
  
  BEYOND AI IMPORTS
  
  – Floating "Add drawing" button - open a blank canvas on any Notion page when you want to draw from scratch.
  – Hover-to-edit - every Flowblock drawing reopens with one click; your edits persist forever.
  – Native Notion blocks - drawings live as real image blocks. No iframes, no external links, no broken embeds. Your diagrams survive uninstalling.
  – Dark mode - matches Notion's theme automatically.
  
  
  PRO FEATURES
  
  – Unlimited drawings - free plan includes 5 drawings per month (AI / Mermaid imports count toward that bucket); Pro removes the cap entirely.
  – Version history with one-click rollback - every save snapshots the last 5 versions inside the drawing itself. Restore any of them with one click.
  – Multiple Notion workspaces - connect Flowblock to as many workspaces as you need (personal, team, client) and switch between them from the extension menu.
  – Priority support.
  
  
  PRICING
  
  – Free forever - 5 drawings per month, both editors, AI / Mermaid flowchart import, native Notion blocks.
  – Pro - $4.99/month or $44.99/year (3 months free). Unlimited drawings + version history + multi-workspace + priority support.
  
  
  PRIVACY
  
  Drawings are uploaded directly to your own Notion workspace using your Notion access token. We never store your drawing content on our servers. Authentication tokens stay in Chrome's local storage. Learn more: https://flowblock.app/privacy.html
  
  
  WORKS WITH
  
  Notion Free, Plus, Business, and Enterprise plans. Chrome on macOS, Windows, and Linux. Firefox and Edge support in progress.
  
  
  QUESTIONS OR FEEDBACK
  
  Email [email protected] or visit https://flowblock.app

  Real diagram editors, native inside Notion.
  
  Notion has no diagram block. You either screenshot from draw.io and paste (which breaks the moment anything changes), or you wrestle with Notion AI's Mermaid output in a code block. Flowblock fixes both.
  
  Click the floating button on any Notion page and a full Excalidraw or draw.io editor opens right over your doc. Draw, save, and the diagram lands as a native Notion image block. Hover any saved diagram, click Edit, and you're back in the editor exactly where you left off.
  
  
  TWO EDITORS, SWITCHABLE PER DIAGRAM
  
  - Excalidraw - hand-drawn style. Perfect for sketches, brainstorming, casual whiteboard moments.
  - draw.io - rigorous and technical. UML, BPMN, ER, sequence, class, network topology, the full shape libraries.
  
  Both save as native Notion image blocks that survive uninstalling Flowblock.
  
  
  IMPORT NOTION AI MERMAID CODE
  
  Ask Notion AI for a flowchart and you get a Mermaid code block. Useful, until you need to rename a node or fix an arrow and you're suddenly hand-editing Mermaid syntax in a text block.
  
  Flowblock adds an Import button to every Mermaid block in Notion. One click parses the source and reopens the diagram in Excalidraw or draw.io as something you can actually edit visually.
  
  
  HOW IT WORKS
  
  1. Hit the floating Add Diagram button on any Notion page (or hover a Mermaid block and click Import).
  2. Draw, edit, or convert in Excalidraw or draw.io, right inside the modal.
  3. Save. The diagram lands in your Notion page as a real image block, yours forever.
  
  
  PRO FEATURES
  
  - Unlimited drawings - the free plan includes 5 drawings per month (Mermaid imports count toward that bucket); Pro removes the cap.
  - Version history with one-click rollback - every save snapshots the last versions inside the diagram. Restore any of them in one click.
  - Multiple Notion workspaces - connect personal, team, and client workspaces and switch between them from the extension menu.
  - Priority support.
  
  
  PRICING
  
  - Free forever - 5 drawings per month, both editors, Mermaid flowchart import, native Notion blocks.
  - Pro - $4.99/month or $44.99/year (3 months free). Unlimited drawings + version history + multi-workspace + priority support.
  
  
  PRIVACY
  
  Diagrams upload directly to your own Notion workspace using your Notion access token. We never store your diagram content on our servers. Authentication tokens stay in Chrome's local storage. Learn more: https://flowblock.app/privacy.html
  
  
  WORKS WITH
  
  Notion Free, Plus, Business, and Enterprise plans. Chrome on macOS, Windows, and Linux. Firefox and Edge support in progress.
  
  
  QUESTIONS OR FEEDBACK
  
  Email [email protected] or visit https://flowblock.app

• May 9, 2026
  description

  Turn AI-generated flowcharts into editable diagrams.
  
  Notion AI is great at sketching flowcharts — but it hands you a static Mermaid code block you can't really edit. Flowblock turns those AI-generated diagrams into real, editable drawings, right inside Notion. No new tab. No copy-paste. No external service.
  
  
  HOW IT WORKS
  
  1. Notion AI gives you a Mermaid block. Ask it to map a workflow, decision tree, or system diagram — it produces a mermaid code block.
  
  2. Click Import. Hover the Mermaid block in Notion. Flowblock adds an Import button. One click parses the source and opens a real, editable diagram in a modal.
  
  3. Edit, save, done. Drag a node, recolor, add a label. Save and the Notion block becomes a clean Excalidraw or draw.io drawing — yours forever, even if you uninstall Flowblock.
  
  
  TWO EDITORS, YOUR CHOICE
  
  – Excalidraw — the beloved hand-drawn style. Perfect for sketches, brainstorming, casual diagrams.
  – draw.io — rigorous, technical diagrams. UML, BPMN, network topology, system architecture.
  
  Pick the right tool per diagram. Both save as native Notion image blocks.
  
  
  BEYOND AI IMPORTS
  
  – Floating "Add drawing" button — open a blank canvas on any Notion page when you want to draw from scratch.
  – Hover-to-edit — every Flowblock drawing reopens with one click; your edits persist forever.
  – Native Notion blocks — drawings live as real image blocks. No iframes, no external links, no broken embeds. Your diagrams survive uninstalling.
  – Dark mode — matches Notion's theme automatically.
  
  
  PRO FEATURES
  
  – Unlimited drawings — free plan includes 5 drawings per month (AI / Mermaid imports count toward that bucket); Pro removes the cap entirely.
  – Version history with one-click rollback — every save snapshots the last 5 versions inside the drawing itself. Restore any of them with one click.
  – Multiple Notion workspaces — connect Flowblock to as many workspaces as you need (personal, team, client) and switch between them from the extension menu.
  – Priority support.
  
  
  PRICING
  
  – Free forever — 5 drawings per month, both editors, AI / Mermaid flowchart import, native Notion blocks.
  – Pro — $4.99/month or $44.99/year (3 months free). Unlimited drawings + version history + multi-workspace + priority support.
  
  
  PRIVACY
  
  Drawings are uploaded directly to your own Notion workspace using your Notion access token. We never store your drawing content on our servers. Authentication tokens stay in Chrome's local storage. Learn more: https://flowblock.app/privacy.html
  
  
  WORKS WITH
  
  Notion Free, Plus, Business, and Enterprise plans. Chrome on macOS, Windows, and Linux. Firefox and Edge support in progress.
  
  
  QUESTIONS OR FEEDBACK
  
  Email [email protected] or visit https://flowblock.app

  Turn AI-generated flowcharts into editable diagrams.
  
  Notion AI is great at sketching flowcharts - but it hands you a static Mermaid code block you can't really edit. Flowblock turns those AI-generated diagrams into real, editable drawings, right inside Notion. No new tab. No copy-paste. No external service.
  
  
  HOW IT WORKS
  
  1. Notion AI gives you a Mermaid block. Ask it to map a workflow, decision tree, or system diagram - it produces a mermaid code block.
  
  2. Click Import. Hover the Mermaid block in Notion. Flowblock adds an Import button. One click parses the source and opens a real, editable diagram in a modal.
  
  3. Edit, save, done. Drag a node, recolor, add a label. Save and the Notion block becomes a clean Excalidraw or draw.io drawing - yours forever, even if you uninstall Flowblock.
  
  
  TWO EDITORS, YOUR CHOICE
  
  – Excalidraw - the beloved hand-drawn style. Perfect for sketches, brainstorming, casual diagrams.
  – draw.io - rigorous, technical diagrams. UML, BPMN, network topology, system architecture.
  
  Pick the right tool per diagram. Both save as native Notion image blocks.
  
  
  BEYOND AI IMPORTS
  
  – Floating "Add drawing" button - open a blank canvas on any Notion page when you want to draw from scratch.
  – Hover-to-edit - every Flowblock drawing reopens with one click; your edits persist forever.
  – Native Notion blocks - drawings live as real image blocks. No iframes, no external links, no broken embeds. Your diagrams survive uninstalling.
  – Dark mode - matches Notion's theme automatically.
  
  
  PRO FEATURES
  
  – Unlimited drawings - free plan includes 5 drawings per month (AI / Mermaid imports count toward that bucket); Pro removes the cap entirely.
  – Version history with one-click rollback - every save snapshots the last 5 versions inside the drawing itself. Restore any of them with one click.
  – Multiple Notion workspaces - connect Flowblock to as many workspaces as you need (personal, team, client) and switch between them from the extension menu.
  – Priority support.
  
  
  PRICING
  
  – Free forever - 5 drawings per month, both editors, AI / Mermaid flowchart import, native Notion blocks.
  – Pro - $4.99/month or $44.99/year (3 months free). Unlimited drawings + version history + multi-workspace + priority support.
  
  
  PRIVACY
  
  Drawings are uploaded directly to your own Notion workspace using your Notion access token. We never store your drawing content on our servers. Authentication tokens stay in Chrome's local storage. Learn more: https://flowblock.app/privacy.html
  
  
  WORKS WITH
  
  Notion Free, Plus, Business, and Enterprise plans. Chrome on macOS, Windows, and Linux. Firefox and Edge support in progress.
  
  
  QUESTIONS OR FEEDBACK
  
  Email [email protected] or visit https://flowblock.app

• May 9, 2026
  name

  Flowblock — AI Flowchart Editor for Notion

  Flowblock - AI Flowchart Editor for Notion

• May 2, 2026
  description

  The drawing tool built for Notion.
  -----
  Flowblock lets you create, edit, and store hand-drawn diagrams, wireframes, and sketches as native Notion image blocks — without leaving your workspace. No embeds, no external links, no dead iframes. Your drawings live inside Notion and travel with your pages.
  
  How it works
  -----
  1. Click "Add drawing" — a floating button appears at the bottom-right of any Notion page. Click to open the editor in a modal.
  2. Draw anything — use the full Excalidraw editor (or draw.io for technical diagrams): freehand, shapes, arrows, text, and hand-drawn style that looks great in any doc.
  3. Save to Notion — your drawing appears instantly as an inline image block. Hover over it any time to re-edit — content loads back exactly as you left it.
  
  What you can draw
  -----
  - Flowcharts and decision trees
  - System architecture and service diagrams
  - UI wireframes and mockups
  - Mind maps and org charts
  - Freehand sketches and whiteboard-style notes
  - Technical diagrams (draw.io)
  
  Features
  -----
  - Full Excalidraw editor — the beloved hand-drawn style, embedded directly in your browser.
  - Native Notion blocks — drawings live as real Notion image blocks, not external embeds. They survive uninstalling. We never store your content on our servers.
  - [COMING SOON] draw.io editor — pick the right tool: Excalidraw for sketches, draw.io for rigorous technical diagrams.
  - Edit any time — hover over any drawing in Notion to reopen it in its original editor.
  - Dark mode — match Notion's dark theme automatically.
  
  Pro features
  -----
  - Version history — every save snapshots the last 5 versions inside the drawing itself. Restore with one click.
  - [COMING SOON] Mermaid import — detect Mermaid code blocks on your page (including ones from Notion AI) and open them as editable drawings.
  - Unlimited drawings — free plan includes 5 drawings per month; Pro removes the cap.
  
  Pricing
  -----
  - **Free forever** — 5 drawings per month, both editors, native Notion blocks.
  - **Pro** — $4.99/month or $49.99/year (2 months free). Unlimited drawings, version history, Mermaid import, priority support.
  
  Privacy
  -----
  Drawings are uploaded directly to your own Notion workspace using your Notion access token. We never store your drawing content on our servers. Authentication tokens stay in Chrome's local storage. Learn more: https://flowblock.app/privacy.html
  
  Works with
  -----
  Notion Free, Plus, Business, and Enterprise plans.
  
  Questions or feedback
  -----
  Email [email protected] or visit https://flowblock.app

  Turn AI-generated flowcharts into editable diagrams.
  
  Notion AI is great at sketching flowcharts — but it hands you a static Mermaid code block you can't really edit. Flowblock turns those AI-generated diagrams into real, editable drawings, right inside Notion. No new tab. No copy-paste. No external service.
  
  
  HOW IT WORKS
  
  1. Notion AI gives you a Mermaid block. Ask it to map a workflow, decision tree, or system diagram — it produces a mermaid code block.
  
  2. Click Import. Hover the Mermaid block in Notion. Flowblock adds an Import button. One click parses the source and opens a real, editable diagram in a modal.
  
  3. Edit, save, done. Drag a node, recolor, add a label. Save and the Notion block becomes a clean Excalidraw or draw.io drawing — yours forever, even if you uninstall Flowblock.
  
  
  TWO EDITORS, YOUR CHOICE
  
  – Excalidraw — the beloved hand-drawn style. Perfect for sketches, brainstorming, casual diagrams.
  – draw.io — rigorous, technical diagrams. UML, BPMN, network topology, system architecture.
  
  Pick the right tool per diagram. Both save as native Notion image blocks.
  
  
  BEYOND AI IMPORTS
  
  – Floating "Add drawing" button — open a blank canvas on any Notion page when you want to draw from scratch.
  – Hover-to-edit — every Flowblock drawing reopens with one click; your edits persist forever.
  – Native Notion blocks — drawings live as real image blocks. No iframes, no external links, no broken embeds. Your diagrams survive uninstalling.
  – Dark mode — matches Notion's theme automatically.
  
  
  PRO FEATURES
  
  – Unlimited drawings — free plan includes 5 drawings per month (AI / Mermaid imports count toward that bucket); Pro removes the cap entirely.
  – Version history with one-click rollback — every save snapshots the last 5 versions inside the drawing itself. Restore any of them with one click.
  – Multiple Notion workspaces — connect Flowblock to as many workspaces as you need (personal, team, client) and switch between them from the extension menu.
  – Priority support.
  
  
  PRICING
  
  – Free forever — 5 drawings per month, both editors, AI / Mermaid flowchart import, native Notion blocks.
  – Pro — $4.99/month or $44.99/year (3 months free). Unlimited drawings + version history + multi-workspace + priority support.
  
  
  PRIVACY
  
  Drawings are uploaded directly to your own Notion workspace using your Notion access token. We never store your drawing content on our servers. Authentication tokens stay in Chrome's local storage. Learn more: https://flowblock.app/privacy.html
  
  
  WORKS WITH
  
  Notion Free, Plus, Business, and Enterprise plans. Chrome on macOS, Windows, and Linux. Firefox and Edge support in progress.
  
  
  QUESTIONS OR FEEDBACK
  
  Email [email protected] or visit https://flowblock.app

• May 2, 2026
  short_description

  Create, edit, and store drawings and diagrams as native Notion blocks.

  Edit AI-generated Mermaid flowcharts in Notion. Excalidraw and draw.io diagrams, as native Notion image blocks.

• May 2, 2026
  name

  Flowblock - Draw in Notion

  Flowblock — AI Flowchart Editor for Notion

Permissions & access

Permissions

storageidentityalarms

Host access

https://api.notion.com/*, https://prod-files-secure.s3.us-west-2.amazonaws.com/*, https://*.notionusercontent.com/*

Screenshots