sysdraw
sysdraw is a browser-based editor for system design and architecture diagrams, built around an infinite canvas.
What sysdraw is
sysdraw is a browser-based editor for system design and architecture diagrams, built around an infinite canvas. Users can describe a system in plain language to create an editable diagram, then refine it through chat or by prompting changes to a selected area. It supports flowchart, sequence, class, ER, and state diagrams, alongside a BPMN 2.0 palette. A searchable icon library covers services, queues, databases, caches, and gateways, while connectors attach to anchors and route around obstacles. Mermaid import is available for eight diagram types, including flowchart, sequence, class, state, ER, gantt, pie, and gitGraph. Collaboration includes live cursors and selections, comment threads, mentions, and email invitations with view, comment, or edit roles. Users can share view-only links or embed diagrams in Notion, blogs, and READMEs. Local-first auto-save works offline without signup; signing in enables cross-device sync. The free plan offers 10 scenes, five AI generations monthly, and PNG export. Pro costs $6/month; Ultra costs $20/month. Export formats include PNG, SVG, PDF, and JSON, with availability varying by tier.
Good
- Offline auto-save works without signup.
- AI-created diagrams remain editable.
- Collaboration includes comments, mentions, and role-based invitations.
- Free tier includes PNG export.
Watch out
- Free tier is limited to 10 scenes.
- Free tier includes five AI generations monthly.
- Service has no uptime or error-free guarantee.
- Export formats vary by plan.
Who it suits
sysdraw is aimed at engineers and other people who design systems visually. It may suit users who want diagram creation, Mermaid import, or shared editing in a browser.
Verdict
sysdraw combines system diagramming, AI-assisted editing, Mermaid import, and collaboration. Its terms advise exporting important work for backup, and plan limits affect scene, generation, and export access.
Plans and prices
From sysdraw's own pricing page, checked 30 Sep 2001.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | 10 scenes · 5 AI generations/mo · PNG export · $0 forever |
| Pro | $6 a month | 500 scenes · 300 AI generations/mo · watermark-free exports · PDF & SVG export · Mermaid import · $6/month |
| Ultra | $20 a month | Unlimited scenes · 2000 AI generations/mo · traffic simulator · voice rooms · noise suppression · $20/month |
The facts
Each one read from sysdraw's own pages, with the date it was checked.
What it does
- AI diagramming
- Users can describe a system in plain English and receive an editable diagram that they can refine in chat or by prompting changes to a canvas selection.checked 30 Sep 2001
- Audience
- The homepage describes Sysdraw as built for engineers who draw systems and everyday system designers.checked 30 Sep 2001
- Collaboration
- The canvas supports live cursors, selections, comment threads, @mentions, and email invitations with view, comment, or edit roles.checked 30 Sep 2001
- Diagram modes
- The site lists flowchart, sequence, class, ER, and state diagrams, plus a BPMN 2.0 palette.checked 30 Sep 2001
- Exports
- The site lists PNG, SVG, PDF, and JSON exports, with plan availability varying by tier.checked 30 Sep 2001
- Integrations
- The site specifically describes embedding diagrams in Notion, blogs, and READMEs, and importing Mermaid diagrams on Pro.checked 30 Sep 2001
- Mermaid
- Sysdraw imports Mermaid diagrams in eight listed types: flowchart, sequence, class, state, ER, gantt, pie, and gitGraph.checked 30 Sep 2001
- Offline and accounts
- Local-first auto-save works offline without signup; signing in enables cross-device sync.checked 30 Sep 2001
- Purpose
- Sysdraw is a browser-based editor for system design and architecture diagrams, with an infinite canvas.checked 30 Sep 2001
- Security and availability
- The terms say the service is provided as is, without an uptime or error-free guarantee, and advise users to back up important work by exporting it.checked 30 Sep 2001
- Sharing and embeds
- Users can publish view-only links and embed live diagrams in Notion, blogs, or READMEs using an iframe.checked 30 Sep 2001
- System design tools
- The editor includes a searchable icon library for services, queues, databases, caches, and gateways, along with connectors that snap to anchors and route around obstacles.checked 30 Sep 2001
Money
- Billing and refunds
- The terms state that Paddle processes payments and that new subscriptions and upgrades have a 14-day money-back guarantee.checked 30 Sep 2001
The company
- Data ownership
- The terms state that users retain ownership of the diagrams and other content they create or upload.checked 30 Sep 2001
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