Open DWG & DXF Online Free CAD Viewer in Your Browser
CadPeek lets AEC teams, contractors, and reviewers peek inside CAD drawings without AutoCAD. View layers, search text labels, measure distances, convert formats, and share view-only links — architectural, MEP, and life-safety drawings included.
Local parsing by default. No install, no license seat for every laptop — just upload a DWG or DXF and start reviewing.
Local parsing by default · No account · DWG R12–2024
Drop your DWG / DXF here
Architectural, MEP, and shop drawings — opens in the viewer right after you choose a file
12+
Free online tools
DWG/DXF
Formats supported
$0
To get started
90 days
Share link hosting
The problem with CAD files in the field
Every week, contractors email DWG shop drawings to clients who can't open them. Building owners receive MEP layout files from engineers and have no way to review them. Reviewers show up on site with PDF printouts that are already out of date.
AutoCAD costs over $250/monthper seat. Free viewers require desktop installs and IT approval. Generic online viewers don't understand discipline layer naming or drawing conventions.
CadPeek solves this with purpose-built free tools that run in any browser — architectural plans, MEP layouts, shop drawings, and life-safety sheets included.
Instant access
Upload DWG/DXF view in seconds. No install, no IT ticket.
Find any label
Search SD-1, NFPA 13, hydrant tags across the entire drawing instantly.
Layer focus
Auto-detect key MEP and discipline layers. Hide the rest.
Share with anyone
One link. Client or inspector opens in browser. No account.
12 Free Online CAD Tools
Each tool targets one keyword, one job. Every tool has its own landing page and runs free inside our viewer.
DWG to DXF Converter
Convert DWG to DXF online free download
Use freeDXF to DWG Converter
DXF AutoCAD DWG export workflow
Use freeBatch CAD Layer Rename
Batch find/replace layer names
Use freePDF & CAD Overlay Compare
Overlay PDF on CAD for comparison
Use freeCAD Drawing Analyzer & Layer Audit
Analyze & audit CAD layers online
Use freeCAD File Inspector & DXF Validator
Inspect & validate DWG/DXF before import
Use freeCAD Block / Symbol Statistics
Count device blocks & symbols in CAD
Use freeCAD Text Extractor & BOM Export
Export CAD text & BOM inventory to Excel
Use freeCAD Symbol Legend Builder
Auto symbol legend from your drawing
Use freePDF Drawing Analyzer
Analyze PDF drawings & export report
Use freeMeasure CAD Drawing Online
Measure distance on CAD drawing
Use freeShare CAD Drawing Online
Share CAD drawing link with client
Use freeEverything you need to review CAD drawings
DWG & DXF Viewer
Open AutoCAD files R12024 in browser. No plugin, no desktop app.
CAD Text Extractor
List every TEXT/MTEXT with X/Y coordinates. Search NFPA, device tags, room numbers.
Layer Preview
Highlight discipline layers (MEP, fire, security). Toggle ON/OFF.
Measure Tool
Measure real distances on drawing. Verify spacing and runs in the field.
Share Link
90-day hosted view-only links. Send to client, inspector, or sub.
Excel Export
Export full text inventory with layer, type, and coordinates for audits.
Built for your role
Contractors & engineers
Review shop drawings on site. Measure distances, search labels, export layer stats, and share links with GC and clients without emailing DWG files.
Building owners & facilities
Open architect and MEP plans without buying AutoCAD. Verify layouts, equipment locations, and revisions before sign-off.
Inspectors & reviewers
Search text across sheets, filter key layers, export inventories for documentation, and view submittals via share link.
CadPeek vs AutoCAD for viewing
From the blog
Part of our Resource Center
How to Convert DWG to DXF Without AutoCAD
Walk through upload, preview, and DXF download — plus what to verify before you send the file downstream.
DXF to DWG Workflow — Save As Step-by-Step Guide
Open DXF locally, confirm layers and text, export for desktop Save As — without guessing whether the exchange file is intact.
How to Batch Rename CAD Layers Before Submittal
Standardize FP-, FIRE-, and discipline prefixes in bulk, then export a cleaned DXF for the owner or AHJ package.
FAQ
- What file formats does CadPeek support?
- AutoCAD DWG (R12 through 2024) and DXF (ASCII and binary). Both 2D plans and 3D model space drawings are supported.
- Is it really free?
- Yes. View, search text, toggle layers, measure, convert, and share are free in your browser no AutoCAD license required.
- Are my drawings uploaded to your server?
- By default, files are parsed locally in your browser. Upload only happens when you explicitly click Share to create a link.
- Who is this built for?
- Contractors, engineers, building owners, inspectors, procurement teams, and anyone who receives CAD files but does not have AutoCAD. Fire and MEP workflows are supported along with general architectural drawings.
- Does it work for Chinese-labeled drawings?
- Yes. CadPeek detects non-English layer names and renders common Chinese CAD fonts via our CDN font library — useful for imported architectural and MEP drawings.
- How many free CAD tools are included?
- All 12 browser tools convert, analyze, extract, audit, PDF, measure, and share are free with a 15MB file limit per upload.
Start reviewing CAD drawings today
Free. Instant. No AutoCAD. 12 tools, one platform.