Dgrm.net - flowchart editor

Flowcharts

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Sequence Diagrams

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Activity Diagrams

Mind map

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Format scheme

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Highlights

• Works on desktop and mobile
• Has no dependency
• Pure JavaScript

Please note
Source code in this repo is different from https://dgrm.net/.
https://dgrm.net/ has pro features like "undo/redo".

Announcements / Articles

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• 2026-04-26 [Article] JavaScript: Handling Large Files in the Browser. Part 1/2: Reading Large Files
• 2026-04-23 Now flowcharts from a computer open 15 times faster.
• 2026-03-19 Blocks have become more compact. Previously, blocks were expanded by 2 cells, now by 1.
• 2026-01-31 You can now set text alignment. Useful for large blocks.
• 2026-01-07 Automatic position detection. Now the position of the figures is determined automatically. The small figures are always on top. No extra buttons.
• 2025-12-10 Flowchart editor DGRM.net has become even more productive. For diagrams with images, memory savings reach 10x.
• Speed up
  • Fixed errors when working with large (20,000 px x 20,000 px) diagrams.
  • Saving and opening diagrams with a large number of images has been significantly accelerated.

Announcement / Now you can recolor several figures at once
Announcement / Now text fits into shapes automatically
Announcement / Now the exported images files size is 3 times less
Announcement / Now there are tables
Announcement / DGRM Flowchart editor are now in Microsoft AppSource store
Announcement / Team Subsriptions
Announcement / Teamwork
Announcement / Recent
Announcement / ChatGPT plagin (RU article)
Announcement / Folders
UI. Nuances of marker implementation in the DGRM.net flowchart editor
Announcement / Marker
WebRTC. How to establish a p2p connection between browsers
Intro video 50 sec ru
Announcement / Images
Announcement / Rights for schemes
Announcement / DGRM cloud
Announcement / Quick save
JavaScript. WebRTC. Connecting browsers directly without a server, peer-to-peer
Announcement / Live collaboration
Announcement / Select with Shift key
UI. The interface should not be distracting
Announcement / Improved mobile support
Announcement / Action history
Announcement / Header, bold, forward / backward
Announcement / Stroke
Announcement / Resize
Announcement / Hotkeys
Announcement / Copy function
Announcement / Sequence diagrams support
Announcement / I halved the source code
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