CAD Reader

Overview

CAD Reader is a DWG and DXF viewer that also covers measurement, annotation, drawing comparison, data extraction, and editing. It is best suited to quantity surveyors, cost estimators, and site inspection engineers who need to review plans and carry field observations on Android, iOS, macOS, or Windows. The bottom line is a broad CAD review toolkit in one application, though mobile work is constrained to two simultaneously open drawings and the higher tiers require a pricing conversation.

Its scope makes it more than a read-only viewer. Users can inspect quantities, mark revisions, compare drawing versions, pull tables into Excel, and make changes to drawing content. That combination is useful when review and takeoff work are part of the same workflow; it is less compelling if you only need occasional browser-based viewing.

Browse our CAD Viewer Software directory for more options.

Key features

Measurement and comparison

CAD Reader measures length and area, arc length, perpendicular distance, and continuous runs, with separate radius, circular, and angle tools. That range suits estimating and inspection tasks where a single linear tool is not enough. Drawing comparison highlights differences between two drawings, making revision review more direct than checking sheets manually. On mobile, however, the simultaneous-opening limit is two drawings, so larger comparison sets require a more staged process.

Markup and editing

Freeform lines, text, revision clouds, and leader lines provide practical ways to flag work and communicate changes. Mobile users can attach photos and audio, which is particularly relevant to site inspections where a visual or spoken observation belongs with the plan. Editing goes beyond annotation: the listed tools can create and recover DWG files, edit text and layers, and modify drawing objects. Choose it when the same users need to correct or adapt drawings; choose a simpler viewer when editing is outside your remit.

Extraction and file handling

The software extracts drawing text and tables, and exports extracted tables, search results, and measurement data to Excel. This is a meaningful advantage for cost and quantity workflows because information can move into spreadsheet-based estimating or reporting. PDF export, CAD version conversion, external-reference management, and CRP import and export extend its usefulness across mixed-file projects.

Support and service considerations

Support options include an interactive Q&A forum, email and WhatsApp support, and one-on-one personal-support tiers. The privacy policy is intended to comply with GDPR principles for European customers. The user agreement does not guarantee security, uninterrupted or timely service, or error-free operation, so organizations with strict availability or assurance requirements should review that risk before standardizing on the service.

Pricing

CAD Reader uses a freemium model with a free trial.

The comparison page presents Free, Professional, and Enterprise tiers, but the individual feature allocation for each tier is not given. Professional has a Buy Now route without a published price or billing term, while Enterprise uses Contact Sales. That makes the free plan the only clearly priced entry point and leaves budgeting for paid adoption dependent on a quote. Confirm included features, seats, quotas, renewal terms, and support level before purchasing.

Platforms

CAD Reader runs on Android, iOS, macOS, and Windows. The cross-platform coverage supports teams that move between desktop drafting or review and mobile inspection. Mobile photo and audio attachments add field context, while the two-drawing simultaneous-opening cap can limit side-by-side review of more extensive revision packages.

Who it's for

Quantity surveyors and cost estimators get measurement tools plus Excel export for turning drawing information into working data. Site inspection engineers benefit from markup, revision clouds, leader lines, and mobile photo or audio attachments. Design and coordination teams can use comparison, layer and text editing, DWG recovery, and file conversion when drawings need active review rather than simple display.

It is a weaker fit for someone who only opens an occasional file, wants a browser-only tool, or needs a clearly published Professional or Enterprise price before evaluating procurement.

Pros and cons

Pros

• Broad DWG and DXF workflow: viewing, measurement, markup, comparison, extraction, conversion, and editing are covered in one product.
• Useful measurement depth: arc, perpendicular, continuous, radius, circular, and angle measurements go beyond basic length and area checks.
• Spreadsheet handoff: Excel export for measurements, tables, and search results supports estimating and reporting.
• Field-oriented markup: mobile photo and audio attachments connect observations to drawings.
• Free entry point: the Free plan costs nothing and a trial is offered.

Cons

• Mobile comparison limit: only two drawings can be opened simultaneously on mobile devices.
• Paid-plan budget uncertainty: Professional and Enterprise use custom pricing with no published billing term.
• Feature allocation is unclear: the tier comparison does not identify which individual capabilities belong to each plan.
• Service assurances are limited: the agreement disclaims guarantees for security, continuity, timeliness, and error-free operation.

Alternatives

Pick ShareCAD when browser opening without an account and support across web and Linux matter more than CAD Reader's editing and field tools; its free viewer shows a file-size limit of up to 50 MB, with a $49 per plan Standard tier.

ODA File Converter is the better choice when free CAD-file conversion is the priority and you do not need CAD Reader's review, markup, or measurement workflow.

Choose eDrawings Viewer for a free viewer on Android, iOS, macOS, and Windows; advanced collaboration requires eDrawings Professional and mobile pricing varies by region.

Autodesk Viewer fits free web or macOS/Windows viewing when an Autodesk Account is acceptable and uploaded designs expiring after 30 days is workable.

Consider CAD Pockets for Android, iOS, or web access with fundamental CAD features, third-party cloud storage, and 100MB of cloud space.

3D-Tool is a Windows-focused alternative for opening DDD, STL, and 3MF files; its free viewer cannot export CAD files.

CAD Viewer is a free browser CAD option for viewing, review, and editing through an open-source toolkit.

CADViewer suits teams seeking server or self-hosted deployment and a 10-day full-server trial, rather than a straightforward free desktop/mobile reader.

Verdict

Choose CAD Reader if your work combines DWG/DXF inspection with detailed measurement, markup, comparison, Excel extraction, and occasional editing across desktop and mobile. Its strongest case is a survey or inspection workflow that needs both plan intelligence and field evidence. Look elsewhere if you need many drawings open on mobile, a browser-first viewer, or transparent paid-plan pricing before committing.