Crisp renders Mermaid in Confluence as true SVG: full page width, live preview, readable at any zoom. No account to create, and nothing ever leaves your Atlassian site.
Features
Built around what reviews of other diagram apps complain about: blurry images, size limits, forced accounts and broken pages.
Diagrams are drawn as vectors on the page. Zoom to 400% and every label is still text.
No size ceiling. Big architecture maps use the whole page, with zoom, pan and full screen.
Source on the left, diagram on the right, redrawn as you type. Start from 20 ready-made templates.
The exact line and character of a syntax error, not "something went wrong".
Follows your Confluence theme instead of pasting a white box onto a dark page.
High-resolution exports with labels intact, for slides, tickets and docs.
Sharp at any zoom
Other Mermaid apps store a picture of your diagram. Crisp stores the diagram, so zooming in shows more detail, not more blur.
Live editor
A side-by-side editor with instant preview, ready-made templates for every diagram type and precise error messages.
Every diagram type
Flowchart, sequence, class, state, ER, Gantt, C4, mindmap, timeline, Sankey, architecture and more, checked against every release.
Security & privacy
Crisp is designed to have nothing to hand over: no data stored outside Confluence, no egress, no accounts.
Hosted on Atlassian's Forge platform. No servers of ours ever see your content.
The rendering engine is bundled into the app. No CDN, no analytics, no outbound calls.
Report issues privately to security@decisionscalc.com. Acknowledged within 2 business days.
Security posture · Privacy policy · End user terms · Third-party notices
FAQ
No. Crisp runs on Atlassian's Forge platform with the Mermaid engine bundled inside the app. It makes no external requests and requests no API scopes, so diagram source never leaves your Confluence site. See Security.
No. Install it from the Atlassian Marketplace and everyone on the site can use it straight away. There is no sign-up, no login and no separate service.
They keep rendering. Only editing and saving need an active licence, so your pages never break. Viewing is never gated.
Free for teams of up to 10 users, and billed by Atlassian with your other Marketplace apps above that. Every plan starts with Atlassian's free trial.
DecisionsCalc, a small independent software publisher run by Akash Randive. Support comes from the developer directly at support@decisionscalc.com, with a first reply within 2 business days.
Install in one click from the Atlassian Marketplace. Free for teams up to 10.
