OmniGraffle API
No web or REST API and no cloud backend. The only programmatic surface is Omni Automation, JavaScript that runs inside the user's local desktop app, plus a Mac-only AppleScript dictionary. An external service cannot read or write OmniGraffle data over the wire.
Frequently asked questions
OmniGraffle scores F on the API Report Card. No web or REST API and no cloud backend. The only programmatic surface is Omni Automation, JavaScript that runs inside the user's local desktop app, plus a Mac-only AppleScript dictionary. An external service cannot read or write OmniGraffle data over the wire.
Without a usable official API, teams fall back on manual exports, file drops, or one-off vendor integrations. The other option is an unofficial API layer like Supergood that automates the authenticated web app directly.
OmniGraffle is a visual-communication, diagramming, and rapid-prototyping app for macOS, iPadOS, and iOS built by The Omni Group (Seattle; founded 1994), the same independent Apple-focused software company behind OmniFocus, OmniOutliner, and OmniPlan.
Vertical: misc, horizontal creative/productivity software. Not a vertical SaaS in any Supergood-named vertical. UX/UI wireframing and rapid prototyping: mid-fidelity wireframes, flow diagrams, click-throughs (a long-time staple before Sketch and Figma).
Medium within the Apple-only segment, niche overall.
Data that lives inside OmniGraffle on behalf of customer users (almost entirely on the user's device or in iCloud/OmniPresence, not in an Omni-hosted multi-tenant database): Diagram files (.graffle): documents, canvases, layers, shapes, lines/connectors, groups, text labels, magnets/connection points, vector paths.
First released in 2001 (25+ years old).
No public web/REST API at all, only on-device JavaScript automation; impossible for an external SaaS to read or write a customer's OmniGraffle data over the wire. No webhooks against an Omni-hosted service; integrations must poll the local filesystem or run user-side scripts. Full sourced list under Sources below.
Common alternatives include Microsoft Visio, Lucidchart (Lucid Software), Miro, FigJam (Figma), draw.io / diagrams.net, SmartDraw. Graded alternatives appear under "More from the report card" below.
Grades measure one thing: can a customer's engineering team get their own data out programmatically? We check six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and roll them into a letter grade. Grades get re-verified, and they only move on evidence.