Data-Loss-Free Local Excalidraw For Apple Platforms
ExcalidrawZ is a native SwiftUI Excalidraw client for Mac that keeps files locally, reaching 1,196 GitHub stars from people who love Excalidraw but want a real Apple app, yet its issues hit the one thing a local drawing app must never do: a recurring 'the data couldn't be read because it is missing' error blocks saving, connecting shapes with a plain line throws the same error, and a version migration failed with an archive error. People want Excalidraw natively without losing diagrams. The wedge is a native Apple Excalidraw client whose local storage and migrations are provably safe.
Problem Statement
A designer or engineer uses a native Excalidraw client to keep diagrams locally, then hits 'the data couldn't be read because it is missing' when saving, gets the same error simply connecting two shapes with a line, and loses access to files after a version migration fails. A drawing app that can corrupt or fail to read its own files cannot be trusted, so they retreat to the web app and give up the native experience.
The Idea
A native, local-first Excalidraw client for Apple platforms whose file storage and version migrations never lose or corrupt a diagram.
Why Now
Excalidraw became a default whiteboarding tool by 2026 and Apple users want a real native app over the web version, and ExcalidrawZ's traction proves the demand, but its data-read and migration-failure issues show that storage reliability, not features, is what determines whether people trust it with their diagrams.
Target User
Mac and Apple-platform users who rely on Excalidraw for diagrams and want a native local app
Target Market
Diagramming and whiteboarding software for Apple platforms
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