New CAD software · Draw. Design. Build.

Professional CAD, without changing your habits.

ARCYNDRA CAD opens your DWG drawings, keeps the commands, shortcuts and layout you know, and runs on your own computer, offline. A new application designed for engineering firms, architects and independents who want to draw, not relearn.

Support the project · from €10 → Join the pilot programme (free) See the roadmap
DWG and DXF filesWindows, then macOS and LinuxWorks offlineNo account required
ARCYNDRA CAD: ground-floor plan of a villa, with ribbon, Properties palette, command line and status bar

Mock-up of the target interface. The software is under development. See the five design views →

DWGYour DWG filesOpened and displayed faithfully: layers, dimensions, blocks, layouts.
Your reflexesL, PL, F8, Ctrl+1: the same keys do the same thing.
On your computerNo account, no sign-in required: your drawings stay with you.
Extensible.NET plugins and scripts to automate your repetitive tasks.
Funded by the people who draw

No investors. Just you.

ARCYNDRA CAD is developed independently. Every contribution directly funds development, and every milestone reached brings version 1.0 forward. In return, you test before everyone else, you vote on priorities, and the Founder tier includes your first two years of licence.

0 €Be the first supporter

Next milestone: €5,000, professional distribution (installation without security warnings, possible Mac version).

Backer

10 €one-off

Monthly development newsletter and your name in the credits.

Choose Backer

Supporter

39 €one-off

Closed beta from 31 May 2027, three weeks before the public, and a vote on the roadmap.

Choose Supporter
Recommended

Founder

149 €one-off

First two years of 1.0 licence included, Viewer from January 2027 and −30% for life on renewal.

Become a Founder

Engineering firm

990 €one-off

10 seats: first two years of licence included, −30% for life, partner logo and onboarding.

Equip my firm
One-off payment, no subscription. All the details, milestones and feature sponsorship →
What you will be able to do

Everything a draughtsman uses every day, first.

We have catalogued 179 features of professional CAD and started with the most used. The labels show which version delivers them.

Drawing and editing

Line, polyline, circle, arc, rectangle; move, copy, offset, trim, extend, fillet, with object snaps and ortho mode.

Public beta
4200

Dimensions and text

Linear, aligned, angular, radius and diameter dimensions; dimension styles; single-line and multiline text.

Public beta

Layers and properties

Layer manager, colours, linetypes, Properties palette: your drawing is organised the way you are used to.

Public beta

Scaled PDF printing

Choose the area, paper size and scale (1:50, 1:100…): you get a vector PDF, ready to send or print.

Public beta

Hatches, blocks and attributes

Hatching by clicking inside, block libraries, attributes and block editor for your symbols and title blocks.

Version 1.0

Layouts and page setups

Paper space, scaled viewports, CTB plot styles, page setups: your drawing sets just as in your current software.

Version 1.0
See the 173 features and development progress →
Coming from AutoCAD?

You are up and running from day one.

The ribbon, the command line at the bottom of the screen, the Properties palette, the Model and Layout tabs: everything is where you expect it. Commands respond to their French name, their English name and their short aliases.

  • Import your acad.pgp alias file, your plot styles, linetypes, hatch patterns and templates.
  • Your scripts written with English commands (_LINE, _ZOOM) remain valid.
  • Window or crossing selection, grips, snaps: same gestures, same behaviour.
LLine
PLPolyline
F3Object snaps
F8Ortho
Ctrl+1Properties
EspaceRepeat
Under the bonnet

Modern, fast, built to last.

ARCYNDRA CAD is written in C# on .NET 10, with GPU-accelerated display. The core of the software is independent of the interface: it is tested automatically on every change, against a corpus of real drawings.

60fps

Smooth display targeted with 500,000 segments on screen.

< 3s

Target opening time for a 20 MB DWG.

< 2s

Target cold start time for the application.

200+

Real drawings re-read and re-written with every release to guarantee compatibility.

These figures are design targets. They will be measured and published with each release.

.NET 10Avalonia UISkiaSharp (GPU)ACadSharp · DWG/DXF.NET pluginsC# scriptsInstaller and automatic updates
Public roadmap

Three releases to discover ARCYNDRA CAD.

Each stage is a release you can install and use. Timescales are counted from the start of development.

Month 1.5

ARCYNDRA Viewer

Preview · DWG/DXF viewer
  • Open your DWG and DXF drawings
  • Faithful display: layers, dimensions, blocks, hatches
  • Smooth navigation, even on large drawings

Who it's for: anyone curious, and for checking compatibility with your own files.

Months 6 to 7

Public beta

First line · Windows
  • Drawing, editing, snaps
  • Layers, properties, text, dimensions
  • Simple blocks, scaled PDF printing
  • DXF saving
  • Ribbon and shortcuts as in AutoCAD

Who it's for: draughtsmen ready to use it on real projects and give us their feedback.

Months 13 to 15

ARCYNDRA CAD 1.0

Production release
  • DWG saving
  • Hatches, attributes, block editor
  • Layouts, plot styles
  • External references, images
  • macOS and Linux, plugins and scripts

Who it's for: engineering firms and practices equipping their workstations.

After 1.0

And then

Based on your feedback
  • AI assistant that queries your drawing
  • Comparing two versions of a drawing
  • Parametric constraints
  • LISP compatibility
  • 3D

Who it's for: priorities will be set with pilot programme members.

Provisional timeline, drawn up for a team of two to three developers. It will be refined and dated at the end of the first stage. Follow development progress → · See the detailed schedule → · Speed up this timeline by supporting the project →

Pilot programme

Let's build it with the people who draw.

We are looking for users who will test each version on their own drawings. In return, they will get early access and a direct say in priorities.

  • Access to ARCYNDRA Viewer, then the beta, before everyone else.
  • Your DWG files added, anonymised and with your consent, to our compatibility test corpus.
  • Regular discussions with the team to decide what comes after 1.0.
Sign me up →Support the project

Profiles we are looking for

Engineering firmsTechnical drawings, dimensioning, drawing sets.
ArchitectsPlans, sections, elevations, layouts.
IndependentsDraughtsmen and surveyors working on a single workstation.
Schools and trainersCAD teaching.
Frequently asked questions

What we are asked most often.

Can I open my AutoCAD files?

Yes. ARCYNDRA CAD reads DWG files (versions R13 to 2018) and DXF. Recent versions of AutoCAD still save in DWG 2018 format, so their files are covered. Saving to DWG arrives with version 1.0; the beta saves to DXF.

Do I need an internet connection or an account?

No. ARCYNDRA CAD installs and runs entirely on your computer. Your drawings never leave your machine.

Which systems?

Windows 10 and 11 from the public beta. macOS (Apple Silicon) and Linux with version 1.0.

How much will it cost?

Our current estimate: around €149 excl. VAT per year per user, with your version yours to keep after 12 months, plus a free Viewer and a free education version. See the estimated pricing. The final price will be announced before the public beta, after consulting the members of the pilot programme.

How can I support the project?

With a one-off payment, from €10. Depending on the tier you choose, you get early access to the beta, votes on the roadmap and, from the Founder tier upwards, your first two years of licence. See the support tiers.

Will my LISP routines work?

Not at first. LISP compatibility is planned after 1.0. In the meantime, .NET plugins and C# scripts let you automate your tasks.

What about 3D?

ARCYNDRA CAD focuses first on 2D drawing, which makes up most day-to-day work. 3D is part of the stages after 1.0.