Mesh Rhino is a lightweight, in-browser flowchart builder. For those minds that need to think in diagrams. Always free, no installs or lock-in BS.
Our approach
Most diagramming tools bury simple tasks under menus and subscriptions. Mesh Rhino strips that away: open the page and you already have a working canvas and every tool one tap away.
Who it's for
Engineers mapping a system, founders sketching a process, students diagramming logic, or anyone who needs to turn a sequence of steps into something visual - fast, without a learning curve.
What's inside
Twelve shape types, nine connector styles, a ten-color palette, undo/redo history, pan and zoom, search across your diagram, and a light/dark canvas - all running client-side in your browser.
Your data, exportable
Diagrams autosave locally in your browser and can be exported as JSON, SVG, or PNG at any time. your work is portable and never trapped behind a proprietary format.
Built to last
Mesh Rhino is under active development. We keep the interface calm and the feature set focused, adding capability only where it genuinely speeds up building a flowchart.
Privacy notice
Mesh Rhino is designed around one principle: your diagrams belong to you and to your browser alone. Here's exactly what happens and doesn't happen to your data.
What we store
Your in-progress diagram (shapes, connectors, labels) is saved to your browser's session storage on your device only, so it survives a page reload within the same tab but is cleared when you close the browser. If you choose to sign in and save a diagram to your account, that diagram and your email address are stored securely on our servers so you can access them later, and only you can see them.
Accounts are optional
You can use Mesh Rhino fully without ever signing up. Creating an account is optional and only needed if you want to save a diagram to your profile so it's there when you come back. An account stores just your email address and the flowcharts you choose to save, nothing more.
Cookies and advertising
Mesh Rhino uses cookies and similar technologies for analytics and advertising. We use Google Analytics to understand how the site is used, and we display ads through Google AdSense. Google and its partners may use cookies to serve ads based on your visits to this and other websites and to measure ad performance. You can opt out of personalised ads at Google Ads Settings, opt out of Google Analytics with the opt-out browser add-on, and manage cookies in your browser settings. See our privacy policy for full details.
Exports are yours
Files you export (JSON, SVG, or PNG) are generated entirely in your browser and saved directly to your device. We never see, store, or have access to exported files.
Questions
This notice reflects the app's current design, including optional accounts and the cookies described above. If Mesh Rhino ever changes how it handles your data, our privacy policy will be updated to explain exactly what changes and why.
This is a BETA version. For any enquiries, bug reports or improvements please feel free contact us at admin@meshrhino.com