Free Online CAD Tools
View, convert, and process DWG, DXF, STL, SVG, and PDF files directly in your browser. No upload. No registration. 100% private.
Explore Tools →All Tools
Everything you need for CAD files — free, fast, and secure.
DWG to PDF
Convert DWG drawings to PDF documents.
DXF to PDF
Convert DXF files to PDF format.
SVG to PDF
Convert SVG vector files to PDF.
STL Viewer
View STL 3D models in your browser.
DXF Viewer
View DXF CAD files online for free.
DWG to DXF
Convert DWG to DXF format.
STL to OBJ
Convert STL 3D models to OBJ format.
DXF to DWG
Convert DXF files to DWG format.
SVG to DXF (CNC)
Convert SVG to DXF for CNC & laser cutting.
PDF to SVG
Convert PDF pages to SVG vector files.
DXF to Image
Convert DXF drawings to PNG/JPG images.
DWG to Image
Convert DWG files to PNG/JPG images.
PDF to DWG
Convert PDF drawings back to DWG.
DXF to SVG
Convert DXF CAD files to SVG vectors.
DWG Version Converter
Convert between DWG versions.
Image to DXF
Convert images to DXF paths for CNC.
OBJ Viewer
View OBJ 3D models online.
STEP Viewer
View STEP CAD files in 3D.
Frequently Asked Questions
Everything you need to know about SmartCAD.
🔒 Are my files safe with SmartCAD?
Yes. All processing happens in your browser. Files never leave your device. Nothing is uploaded to our servers.
📝 Do I need to register?
No. SmartCAD is completely free and anonymous. No account, no email, no payment.
📐 What's the difference between DWG and DXF?
DWG is Autodesk's proprietary format. DXF is an open exchange format. For browser-based use, we strongly recommend DXF due to better support.
📡 Can I use SmartCAD offline?
After the first load, most tools work offline as a Progressive Web App (PWA).
📦 Is there a file size limit?
SmartCAD supports files up to 100 MB. Processing time depends on your device's performance.
🌐 Which browsers are supported?
Chrome, Firefox, Safari, Edge — any modern browser from the last 3 years.
💾 Does SmartCAD store my files?
No. Nothing is ever uploaded to our servers. All processing is 100% client-side.