Free DWG converter + AI-native 2D CAD

Someone sent you a DWG.
Now what?

Turn it into a PDF you can actually send — free, in your browser, in about fifteen seconds. No AutoCAD. No install. No account.

DWG to PDF, DXF, PNG or SVG. Then edit it with AI if you want to.

app.caddillo.com
An office suite floor plan drawn in CADdillo — open office, conference room, IT closet, and ADA restroom with dimensions and MEP piping.

Small commercial office suite — composed with the CADdillo engine + block library.


Why CADdillo

The occasional-CAD user was never the customer. Now they are.

Legacy CAD is built for people who live in it. CADdillo is built for everyone who just needs to change the vendor's drawing and get on with it.

AI-native

Dillo Bot drafts — and checks its own work

Describe the change in plain English; the engine draws it, renders a preview, sees the result, and corrects. Not AI bolted onto a drawing tool — AI is the drawing tool. (Engine live today; in-app chat rolling out.)

219 blocks free

219 professional blocks — free, forever

Doors, ADA fixtures, MEP piping with every orientation, P&ID symbols, appliances, office, site. The stuff others sell as $99 symbol packs ships free in every tier, including the free one.

Opens DWG

Opens the DWG your vendor actually sent

Reads DWG from r11 through r2018, plus DXF. Exports DXF/DWG that every copy of AutoCAD opens. No "please re-save it as an older format" email chain.

Private

Your files never leave your machine

Viewing and drawing parse in your browser — the file is not uploaded to a server. Confidential vendor drawings and NDA plans stay on your computer, unlike cloud viewers that render server-side.

Real drafting

Real drafting, minus the ceremony

Dynamic input with feet-and-inches (12'-6"), object snap, trim, fillet, array — the AutoCAD verbs you actually use, without the command-line liturgy to invoke them.

Runs anywhere

Runs anywhere there is a browser

Desktop, laptop, tablet. Nothing to install, nothing to license per-seat, no IT ticket. Open a tab and draw.

Works on your phone

Actually works on your phone

Full drafting on iPhone, iPad and Android — a floating tool button, swipe-away panels, and a feet-and-inches keypad that types exact dimensions. Not a read-only viewer. The competitors’ desktop ports stop at the office door.

CAD in your pocket

The drawing follows you onto the job site.

Site walks, vendor visits, warehouse markups — the moments where the measurement actually happens. CADdillo drafts right there in your phone browser. The legacy desktop ports can’t follow you out the door.

  • Full drafting on iPhone, iPad & Android — not a read-only viewer
  • Floating tool button + tool sheet; panels swipe away as bottom sheets
  • Feet-and-inches keypad — type 12'6" with dedicated ' " / keys, exact on iPhone & iPad
  • Fat-finger snap, pinch-zoom, two-finger pan, long-press menu, focus mode

Nothing to install — open app.caddillo.com and draw.

CADdillo running on an iPhone — a two-room floor plan on the drawing canvas with the touch tool sheet open (Hand, Line, Rect, Circle, Arc, Move…) and the floating pencil tool button.

Drafting on an iPhone — live tool sheet + floating tool button, no app install.

Real drafting tools

The AutoCAD verb set. None of the ceremony.

Click to draw, drag to edit. Dynamic input shows live length and angle at the cursor and accepts feet-and-inches. Object snap locks to endpoints, midpoints, centers and intersections — on your files and vendor files alike.

  • Dynamic input with ft-in notation (12'-6")
  • Object snap + grid, on parsed vendor files too
  • Command bar with AutoCAD-style aliases & autocomplete
  • Layers: create, color, hide, lock, per-entity reassign
  • Undo / redo history on everything you draw
  • Light / dark, touch pan & pinch on tablets
Modify verbs shipped in the editor
movecopyrotatescalemirrorstretcharraytrimextendbreakjoinoffsetfilletchamferexplodegroupungroup

Plus line, polyline, rectangle, circle, arc, ellipse, polygon, block builder and clipboard — all undoable, all snap-aware.
Block library

219 professional blocks. Free, forever.

In-house, render-verified, dimensioned to standard — including full ADA fixtures and MEP piping in every orientation. Others sell these as symbol packs. We ship them in every tier.

219
total blocks
125
main library, 15 categories
94
MEP piping, 4 systems
$0
what you pay for them
Built for the trades

Residential

Doors, windows, appliances, fixtures, furniture, breaker boxes and HVAC — a whole house of blocks, dimensioned right.

Commercial

NSF kitchen sinks, ADA restrooms with real clearances, exit signs, fire cabinets, office layouts, parking + ramp templates.

Industrial

Tanks, rack bays, conveyors, IBCs, floor and trench drains, compressors, chillers, mezzanine stairs.

MEP

4 piping systems — plumbing, conduit, HVAC duct, sprinkler — with straights, elbows, tees and crosses in every turn orientation.

Browse the full library →

Popular free blocks

See all 219 →
Pricing

Start free. Upgrade when you outgrow it.

Free
$0

For occasional drawings and viewing.

  • Full editor & all drafting tools
  • All 219 professional blocks
  • 3 drawings
  • Open DXF natively in your browser
  • 3 AI credits included (one-time)
Launch free
Dillo Bot AI credit packs

One-time top-ups. No subscription — buy credits as you need them.

One-time
How the pre-order works: accounts and AI credits go live this week. Your purchase is tied to your checkout email and unlocks automatically at launch — founding price locked, cancel anytime.

For comparison: AutoCAD LT runs about $500/yr, and full AutoCAD about $2,030/yr.

Coming soon

3D is coming to CADdillo.

Simple 3D — the drawing you already made, standing up. Walls get heights, and you orbit your plan in a real 3D view. Honest scope: this is not AutoCAD 3D — no parametric solids, no NURBS. It's the SketchUp-simple 3D most people actually need.

  • Extrude your 2D plan — walls become 3D at real heights
  • Orbit, pan and zoom the model in your browser
  • Push/pull volumes; cabinets and boxes as simple solids
  • 2D stays the core — 3D is an optional upgrade tier

Want it first? Request early access below.

Request early access to 3D

Add your email to the 3D interest list. Early requesters get a free month of 3D when it launches.

No spam. We email you once, when 3D goes live.

Answers

Straight answers to the questions people search

Can I open a DWG file without AutoCAD?

Yes. Drop a DWG (r11 through r2018) into CADdillo and it converts to DXF, which opens natively in your browser — no AutoCAD, no install, no account. Pan, zoom, and inspect layers. You can export back to DXF or DWG that any copy of AutoCAD opens.

Is there a free AutoCAD alternative in the browser?

CADdillo is one. The free tier gives you the full editor, all 219 professional blocks, and 3 drawings — running entirely in your browser on any operating system. Pro is $20/mo for unlimited drawings, DWG import/export, and AI credits, versus roughly $60/mo for AutoCAD LT.

Can AI draw a floor plan?

CADdillo's engine can. You describe what you want — "array three flower rooms at 30 by 40", "mirror the packaging line across the corridor" — and the engine drafts it, renders a preview, checks its own work, and corrects. The engine is live today; the in-app Dillo Bot chat is rolling out.

Do my files get uploaded?

DXF files never leave your machine — viewing and drawing happen entirely in your browser. DWG is the one exception: DWG is a closed binary format, so it is converted server-side, and the uploaded file is deleted immediately after conversion. Full detail in the privacy policy.

What file formats does CADdillo support?

It reads DWG (r11–r2018) and DXF, and exports DXF/DWG that every version of AutoCAD opens, plus PNG for quick shares. Full server-side round-trip export is part of the Pro workflow.

Is there a CADdillo mobile app?

CADdillo runs fully in your mobile browser today — iPhone, iPad, and Android. It is real drafting, not a viewer: a floating tool button opens the tool sheet, panels slide up as bottom sheets, and a feet-and-inches keypad lets you type exact dimensions like 12'6". Just open app.caddillo.com in Safari or Chrome. Native iOS and Android apps are on the roadmap; the web app is the mobile story today.

I pre-ordered — when do I get access?

Accounts and AI credits go live this week. Your purchase is tied to the email you check out with and unlocks automatically the moment login opens — nothing else to do. Your founding price is locked in, and you can cancel anytime.

Free tools

Start without an account

Open a drawing, convert a DWG, or let the AI draft one — the free tools need nothing installed.

Open the drawing. Change what you need. Move on.