CanvasKeep
A free diagramming tool with workspaces, folders, version history, and end-to-end encryption.
1 person waiting for launch day
About
CanvasKeep is a free diagramming tool built on the open-source Excalidraw canvas, offering an infinite space to sketch ideas, draw shapes, and create visual designs directly in your browser. It enhances the standard drawing experience by adding organized workspaces, nested folders, and full version history, allowing you to save named checkpoints, preview past versions, and restore them with a single click.
Designed for anyone who needs to capture and revisit visual ideas—from developers to designers—the platform keeps your growing library of diagrams neatly structured and easy to find over time. Your diagrams are securely encrypted before they ever leave your browser, ensuring that only you hold the decryption key.
What sets CanvasKeep apart is its focus on privacy and practical organization without unnecessary friction. There are no ads, no tracking cookies, no trials, and no credit card required to get started with workspaces, folders, and cloud saving.
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FounderPlaybooks.
What other founders did to grow.
2722 dispatches from hundreds of founders, pulled from the week's best podcasts.
Our expense number one is Meta and TikTok, then maybe a little bit of Google, maybe a little bit of Apple search. I'd say a third is somehow accurate — a third of our revenue, that is.
Paid ads cost roughly one third of revenue — track CAC as a share, not a number
Paid acquisition runs at roughly one third of revenue, with Apple's 15% cut and a small infrastructure plus AI bill on top. A bootstrapped consumer app can stay highly profitable when CAC is tracked as a fixed share of top-line rather than an absolute number.
As an engineer whenever you start a new product you kind of build the login screen first. One of the nice things about being in Apple and Google's walls is you actually don't really need to create an account to make a purchase because you're already signed into your Apple or Google account. The biggest win that we had was moving login to after the paywall. We were seeing 10% drop off by having login being the very first screen.
Move login AFTER the paywall — recovered 10% of the funnel
Engineers reflexively build the login screen first because they need it for dev, and then it stays in onboarding forever. Brett moved auth to AFTER the paywall (relying on Apple/Google identity to take the payment first), recovering the ~10% who otherwise bounced at a forced account-creation wall.
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