Security design software

Design security systems you can defend.

MSD is design software for CCTV, access control, intruder detection and hostile-vehicle mitigation. Pixel density, coverage, cable runs and network loads are calculated with the working shown — then turned into reports, schedules and drawings.

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14-day trial, no cardProjects stored in the EUExport your data any time

Live · field of viewMove the pointer — the camera follows

5 MP · 1/2.8″ · 4.0 mmat pointer — m— px/m—

One tool, every discipline

From the first camera to the last cable.

Each module follows the same pattern: you enter the design, MSD calculates, flags what fails and explains why. Values from standards are labelled with their source — and marked where they still need checking against the standard itself.

CCTV design

Place cameras on a scaled plan and see pixel density zones, not guesses.

IEC 62676-4:2025 and legacy DORI profiles
Camera's-eye 3D preview and monitor wall
Walls, objects and terrain occlusion

Access control

Doors, hardware and controllers designed together.

Door hardware sets and door-area levels
Access-level and cause-and-effect matrices
Controller resilience checks

Intruder detection

Detector coverage and the panel maths behind it.

Coverage on the plan, by detector type
Grade checks against the stated basis
Bus loading and standby battery sizing

Hostile-vehicle mitigation

Indicative worst-case approach routes, speeds and energy.

Route search from every entry point
Bend-limited speed and impact energy
Clearly marked as indicative — specialist assessment required

Cables, network & storage

Runs, losses and loads checked before anything is ordered.

Cable routes, 100 m and voltage-drop checks
PoE budgets per switch
Bandwidth and recording storage per stream

Reports, schedules & drawings

The deliverables your client and installer actually need.

PDF design report with assumptions
XLSX schedules and layered DXF plans that open in AutoCAD (details)
Proposal and budget estimate (PDF/DOCX)

Real renders

What MSD actually draws.

Every image here is a screenshot of MSD rendering one of its synthetic demo projects. Nothing is mocked up.

2D floor plan of an office: each camera’s field of view shaded by image-detail level (DORI), with labelled cameras and pass/fail targets — 2D floor planCamera coverage by detail levelDORI: Detect, Observe, Recognise, Identify

2D site plan of a walled service yard: an indicative worst-case vehicle approach route in red along the L-shaped drive, past two cameras — 2D site planHostile vehicle route searchHVM: hostile vehicle mitigation · not a real site

Simulated 3D camera view of a synthetic test yard with a standing reference person (a simulation, not camera footage) — 3D camera viewWhat a camera seesSimulated view, not camera footage · synthetic test yard

3D site view of a synthetic distribution yard with lorries, a car, walls and barriers, and camera fields of view drawn as lines — 3D site viewVehicles, barriers and camera viewsSynthetic demo yard — not a real site

2D deck plan of a synthetic offshore platform: modules, legs, two cameras with coverage, a hazardous-area zone and a muster area — 2D deck planOffshore platform layoutSynthetic platform — not a real installation

Monitor wall of 26 simulated camera views, each tile labelled with the camera ID, pixel density and pass or fail — Monitor viewAll 26 cameras in the security design

Synthetic demo sites — not real installations. Simulated views are visual checks, not camera footage.

How it works

Four steps, one source of truth.

Everything — plan, devices, calculations and outputs — lives in one project file, saved to your workspace with version history.

Bring in the site

Import a floor plan (image or PDF) or a map background, then calibrate the scale.

Place the design

Cameras, doors, detectors, devices and cable routes, each with real specifications.

Check the results

Pixel density, coverage, cable limits and loads are calculated as you work, with failures flagged.

Issue the outputs

Export the report, schedules, drawings and proposal — all from the same data.

CAD hand-off

DXF drawings that open in AutoCAD and stay editable.

Export any floor as a DXF and keep working on it in AutoCAD or another CAD tool. It is real CAD geometry on named layers, not a flattened picture. Tested with AutoCAD 2027: our test exports passed AutoCAD's AUDIT with 0 errors.

Drawn 1:1 in metres. The drawing units are metres and the coordinates match your MSD plan, so the drawing lines up with CAD drawn on the same origin.
Organised on named layers. Every layer starts with MSD-: architecture (MSD-ARCH-*), CCTV cameras, fields of view, targets and coverage zones by detail level (MSD-CCTV-*), cables (MSD-CABLE-*), devices (MSD-DEVICE*), access control (MSD-AC-*), annotation (MSD-ANNO-*) and the title (MSD-SHEET-TITLE). You can switch each one off, freeze it or restyle it.
Cameras and devices are blocks with attributes. Move, copy or count them like any other block. Their IDs and data travel with them as attributes.
Coverage as hatches, labels as text. Coverage zones are hatches, field-of-view edges are lines, cable runs are polylines, and labels are editable text with leader lines.
DXF, not DWG. MSD exports DXF. AutoCAD can save it as DWG if you need one.
Professional plan and above. The Free plan exports PDF (watermarked) and the MSD project file.

A ground-floor DXF exported by MSD, rendered from the file: walls, cameras, fields of view and coverage on separate layers — **An exported DXF**The demo ground floor, rendered straight from the DXF file

Why it's different

Less re-typing. More checking.

A common way to design security systems is a drawing package, a few spreadsheets and a word processor. MSD keeps it in one place.

Task	Typical spreadsheet-and-CAD workflow	With MSD
Camera pixel density	Calculated by hand or a separate calculator, per camera	Calculated for every camera, shown as zones on the plan
Schedules	Typed again from the drawing; drift creeps in	Generated from the design — always match the plan
Cable and power checks	Separate spreadsheets, often skipped under time pressure	Run automatically, failures flagged before issue
Assumptions	Scattered across files and emails	Stated in the report, next to the result they affect
Revisions	"final_v7_REAL.dwg"	Version history with restore, per project

Pricing

Simple plans. Start free.

Every plan includes every design module. Paid plans add exports, storage, history and teams. Compare plans in detail.

No contract — cancel anytime in your account. Your plan stays active until the end of the period you’ve paid for.

Free

Try MSD on real work

£0

Free for ever · no card

2 cloud projects, 250 MB
Every design module
PDF reports (watermarked)
7-day version history
Help centre support

Start free

Professional

For the independent designer

£35 / month

Billed monthly · no contract, cancel anytime

Unlimited projects, 10 GB
PDF, DOCX, XLSX and DXF exports
Company branding on outputs
90-day version history
Email support, reply within 12 hours

Start 14-day trial

Team

For design teams and integrators

£95 / month

3 designers included · extra designer £29/mo

Everything in Professional
10 free viewer seats
Roles: owner, admin, designer, viewer
50 GB + 10 GB per extra designer
1-year version history
Priority email support, reply within 12 hours

Start 14-day trial

Enterprise

For organisations with procurement needs

Custom pricing

Tailored to your team size, security and procurement requirements. Annual agreement, invoice or purchase order.

Custom seats and limits
Signed, custom data processing agreement
Guided setup and training for your team, with a dedicated account manager
Help completing your security and supplier due-diligence forms
Single sign-on with Microsoft and Google Workspace

Contact sales

Prices in GBP. No VAT is charged — Mastermind Security Solutions Ltd is not VAT registered.All plans include our standard Data Processing Agreement.Trials need no card. When a trial ends without a plan, the workspace moves to Free — projects are kept.

Who we are

Mastermind Security Design (MSD), a product of Mastermind Security Solutions Ltd.

MSD is built and operated by Mastermind Security Solutions Ltd, a UK security company registered in England and Wales (company number 13344765). It exists because security designs should be checkable: every number in an MSD output can be traced back to an input and a stated method.

About MSD and company details

Built to be trusted

Your projects stay yours. Download any project as an open .msdz file, or export everything, at any time.
No silent access. Our staff cannot open your projects unless you grant time-limited support access — and every access is logged for you to see.
Honest about standards. Threshold values are labelled with their source, and flagged where they still need checking against the standard.
Secure by design. Two-factor sign-in, encrypted connections, EU data location and regular backups.

FAQ

Questions designers ask.

Does MSD replace a site survey?

No. MSD produces design estimates from the information you give it. Every output is marked as a preliminary design that needs on-site verification, and the assumptions are listed in the report.

Which standards does it use?

Pixel-density profiles include IEC 62676-4:2025 image-detail levels and the legacy EN 62676-4:2015 DORI values. Where values come from secondary sources, MSD says so on screen and in the report, so you can check them against your copy of the standard.

Can I work with existing project files?

Yes. Import any .msdz project into your workspace, and download it again at any time. The file format is documented and versioned.

Where is my data stored?

Project files and account data are stored with our hosting provider in the European Union. See the Privacy Notice and the sub-processor list.

What happens when my trial ends?

Nothing is deleted. If you don't choose a plan, the workspace moves to the Free plan: you keep your projects and can open and export them; Free limits apply to new work.

Can we use single sign-on?

Yes. Everyone can sign in with Microsoft (Entra ID work or school accounts, and personal Microsoft accounts) or with Google, including Google Workspace accounts. On the Enterprise plan we also help you roll it out across your organisation; contact sales. See Help → Single sign-on.

Do you charge VAT?

No VAT is charged — Mastermind Security Solutions Ltd is not VAT registered. The price you see is the price you pay.

Can my whole team use it?

Yes — the Team plan includes three designer seats, ten free viewer seats, roles and shared folders. Extra designers can be added at any time.

Your next design, with the working shown.

Start on the Free plan — no card, no time limit. Upgrade when the work needs it.

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