Michael and Maya at the laptop in their home office

Simple. Fast. Done.

AutoCAD tools that validate, calculate, and clean your drawings before they ship.

Smart tools that handle the tedious tasks so you can focus on design. Zero learning curve, no complex manuals, no nonsense.

Our tools

Every tool solves one specific frustration.

BasinCalc

Online calculator for dimensioning rainwater infiltration and retention basins. Calculate a simple rectangle or upload custom free-form geometry via DXF. Generates an instant calculation report as a PDF. Runs right in your browser, no AutoCAD needed.

Years AutoCAD experience
35+
Years AutoCAD experience
Professional tools
12
Professional tools
Made in Belgium
100%
Made in Belgium

Welcome to our island: where AutoCAD is actually fun

CompanionBits is run by my daughter Maya and me. Together, we build AutoCAD add-ons for architects, drafting technicians, and engineering firms — and whenever a project is truly close to our hearts, we gladly step outside our comfort zone.

Anyone who drafts every day knows the rusty mainland of AutoCAD: repetitive tasks, unlocked viewports, manual error hunting, and tinkering with loose scripts. Annual updates rarely solve these daily annoyances, and sometimes Autodesk even states plainly on its own support forum: “this isn’t possible.”

I refused to settle for that.

I’ve been an architect for over 30 years and have drafted with AutoCAD for 35 — and the itch never went away. I dreamed of an island where all those frustrations were resolved. An island where drafting is simply enjoyable again.

Together with my daughter Maya, a software engineer, I built the bridge to that island: CompanionBits. The ideas stem directly from my daily work at the computer, and together we bring them to life. The result is a suite of tools that tackle what AutoCAD leaves behind, reducing time-consuming tasks to a single click. No cluttered menus, ready to use out of the box. And your drawings remain clean, standard DWG files that anyone can open.

— Michael & Maya · About

Ready to move to our island, or rather drop by for a free 14-day visit first?

Simple. Fast. Done.

Questions? Just email us, Michael or Maya will answer personally.