Process maps show design. Quodsi shows what happens next.
Quodsi turns a process diagram into a simulation, so you can test staffing, demand and process changes before anyone commits to building them. Start a new diagram or upload an existing one. No tool switching, no specialist software.
Quodsi opens in a new tab, in your browser, as a version of draw.io with Quodsi built in. Nothing to install.
You land in draw.io, with Quodsi built in.
It is the draw.io editor you already know, running in your browser, with Quodsi's simulation tools added. Here is what you can do right away, and what a free account adds.
Build it or bring it, then convert it.
You do not need to sign up to get your own process into Quodsi.
- Build a new draw.io diagram, or upload one you already have.
- Convert it into a simulation model.
- Explore as long as you like, with an AI helper to help you add data to your shapes.
Take the guided tour, then run your model.
Sign in with a free account to start a short onboarding tour built on a sample process:
- Convert a sample diagram into a simulation model.
- Run the simulation and read the results.
- Try what-if analysis and compare the outcomes.
Want a hand getting started? Request a walkthrough.
Quodsi turns your process map into a dynamic model.
Build once. Analyze instantly. Your diagram is the model — no rebuilding, no coding, no separate environment.
Open any existing flowchart. Quodsi reads your shapes automatically — no rebuilding required.
Set arrival rates, processing times, resource capacity, and variability directly on your shapes. Takes minutes.
Test changes side-by-side. Add staff, remove steps, increase demand — see what actually happens before you commit.
Throughput, wait times, utilization, bottlenecks, cost and service impacts — quantified side by side, scenario by scenario.
Recommendations backed by data, not assumption — ready to share with anyone who asks "how do you know?"
Watch a draw.io diagram become defensible evidence.
From a process map to real performance metrics — in minutes, without leaving draw.io.
Why spreadsheets can't answer the question clients actually ask.
Excel is great. But it was built for math, not for modeling dynamic systems. Here's where Quodsi goes further.
Built for people who actually improve processes.
Quodsi is for anyone who has to defend a process redesign before it gets built — proving how it will perform, not just how it was designed, before budget, headcount, or trust is on the line.
Process Improvement Consultants
"How do you know this will actually work?"
Win engagements by answering the hardest question before clients ask it. Simulate how your redesigned process performs, show where bottlenecks emerge, and walk into every presentation ready with proof — not just expertise.
Process Improvement Teams
"I know simulation exists — but it feels like overkill."
Test improvements before implementing them. Justify investments with quantified performance data, not gut feel. Right-sized power for real process work — without the specialist overhead.
Business Analysts
"I just want better numbers than what Excel gives me."
Go beyond current state / future state diagrams. Quantify the real difference between as-is and to-be — with confidence intervals, not just averages.
Which diagramming tool does your team use?
Quodsi is available now in draw.io, and Lucidchart is in early access. Visio and Miro are on the roadmap, and your answer helps us decide what to build first.
Draw.io is available now and free to try. Open it in your browser and bring a diagram with you.
Try Quodsi Free →Quodsi for Lucidchart is in early access. Send us a quick note and we will get you set up.
Request Lucidchart Access →Or try Quodsi free in draw.io while you wait.
Visio support is on our roadmap. We would like to hear how your team uses it, and whether draw.io could work for you in the meantime.
Tell Us About Your Visio Use →Or try Quodsi free in draw.io to see if it fits your process work.
Thanks, that helps. Tell us which tool your team uses and we will keep it in mind for the roadmap.
Tell Us Your Tool →Or try Quodsi free in draw.io today.
Ready to turn recommendations into proof?
Open Quodsi in your browser, build or upload a draw.io diagram and convert it into a simulation model. Create a free account to take the guided tour and run your first simulation.
Free to start. Questions, or want a walkthrough? Request one here.
No simulation expertise required. No enterprise pricing. No rebuilding your models.