CADdillo
A free AI CAD tool that runs in your browser: describe your building needs to generate floor plans, or draw by hand, and export as DWG, DXF, or PDF.
About CADdillo
CADdillo is a free CAD tool that runs in your browser. You can draw and edit drawings by hand, or let Dillo Bot ask you a few questions and generate a real floor plan — walls, doors, windows, plumbing fixtures, and dimensions all on named CAD layers — then export it as DWG, DXF, or PDF after editing. Sign-up requires only an email, the editor is free, and manual drawing doesn't consume credits; AI drawing is billed by credits, and you can buy credit packs one-off when they run out — no subscription needed.
Best for
Best use cases
Quickly generate a residential floor plan draft from a few sentences of description, then edit it in the browser and export as DWG, DXF, or PDF
Draw parking lot plans with ADA accessible spaces, access aisles, signage, and dimensions for permit submission
Open DXF files sent by clients or engineers to review, or convert DWG via the free converter
Compare before choosing
According to the official comparison page: CADdillo's CAD editor, viewer, and converter are free, plus 50 free AI credits, with more AI credits available on demand (starting at $10), no subscription; AutoCAD LT costs about 60 USD per month (about 500 USD per year billed annually).
According to the official comparison page: CADdillo runs in any browser (desktop, tablet, phone) with no installation; AutoCAD LT must be installed on Windows/Mac and is licensed per seat.
According to the official comparison page: CADdillo offers AI drafting powered by the Dillo Bot engine and all 458 professional blocks are permanently free on every tier; AutoCAD LT has no native generative drafting, and many industries need to buy symbol packs costing 99 USD or more beyond the core symbols — but its DWG support is natively mature, since the format belongs to Autodesk.
Features
Free CAD editor
Open in your browser and start drawing and editing — manual drawing and editing don't consume credits, and sign-up only requires an email.
Descriptive AI floor plans
After answering optional questions about building type, area, number of floors, bedrooms and bathrooms, garage, gas or electric, accessibility needs, and more, it generates a floor plan with walls, doors, windows, plumbing fixtures, and dimensions, all placed on named layers.
Parking lot plans
Describe your parking lot and it generates a dimensioned plan with parking spaces, drive lanes, van-accessible spaces with access aisles, accessible routes, and signage; accessibility block downloads are free and unlimited.
DWG/DXF/PDF export
Natively open and export DXF in the browser; DWG is imported via the free converter, the free plan includes 3 DWG exports, and DWG is written in r2000 format.
458 professional blocks
All 458 professional blocks are free to use on every tier.
Pros
- CAD editor, viewer, and converter are free, manual drawing doesn't consume credits, and sign-up only needs an email
- Built-in AI drafting: describe your building needs to generate floor plans on named layers
- Runs directly in the browser with no installation
- All 458 professional blocks are free
- Natively opens and exports DXF, and DWG exports are written in r2000
Cons
- The free plan only includes 3 DWG exports; native DWG reading in the browser is still on the roadmap, so for now you need to convert via the free converter first.
- It's just a drawing tool: determining how many accessible spaces the site legally requires, whether slopes comply, and whether your jurisdiction has additional requirements beyond federal minimums are regulatory judgments you must make yourself.
Pricing Plans
AI credit pack
- Pay-as-you-go AI credits, from $10
- No subscription, no commitment
* Pricing information is for reference only. Please refer to the latest announcement on CADdillo's official website.