In the browser
Looking for Mathcad online? It doesn't exist — this does.
PTC Mathcad is Windows desktop software with no web version. Calcanvas brings the same idea — worksheets where math computes live, with units — to the browser, and adds an infinite canvas, sketching, and real-time collaboration.
Why calculation worksheets belong in the browser
Desktop math software means installers, license servers, Windows-only support, and worksheets that live on one machine. The moment a colleague on a Mac needs to check your numbers, you are exporting PDFs. A browser-based worksheet removes all of that: open a link, see the live calculation, edit it together. Your work follows your account, not your hard drive.
Calcanvas computes server-side with full dimensional analysis, so the browser is just the surface — you get real unit-aware calculation (try it live on that page), Mathcad-style variable definitions shared across cells, and an infinite collaborative whiteboard to think on. Sketch the free-body diagram next to the formulas; drop in a site photo; share the link.
Weighing it against the desktop incumbents? See the full Mathcad alternative comparison — including SMath Studio, Maple Flow, CalcTree, Blockpad, and EngineeringPaper.xyz.
What you get, with zero install
- Live math cells. Formulas evaluate as you type, with units carried through every operation.
- Unit checking. Dimensional mistakes raise clear errors instead of silently wrong numbers.
- Infinite canvas. Pan and zoom forever — group calculations spatially, not in a rigid document.
- Sketching and images. Freehand drawing, shapes, and image upload right next to the math.
- Real-time collaboration. Multiplayer worksheets with live presence cursors.
- Any OS. macOS, Linux, Windows, Chromebook — anything with a modern browser.
FAQ
Frequently asked questions
Is there an official online version of Mathcad?
No. PTC Mathcad Prime is desktop software for Windows; PTC does not offer a browser-based Mathcad. If you searched for 'Mathcad online', what you likely want is a web app that does the same job — live worksheets where formulas compute with units. That is what Calcanvas is.
Does Calcanvas work on Mac and Linux?
Yes. Calcanvas runs in any modern browser on macOS, Linux, Windows, or a Chromebook — no installer, no license server, no virtual machine.
Are my worksheets saved online?
Yes. With a free account, worksheets are saved as projects in the cloud, so you can open them from any machine and share them with collaborators in real time.
Does it handle units like Mathcad does?
Yes. Formulas compute with full dimensional analysis — 5 km + 300 m gives 5.3 km, and incompatible units raise a clear error. Unit intelligence is the core of the product.