Qiyas (قياس)

Desktop measurement CAD for quantity surveyors, by QS Mind. Open DWG and DXF drawings, measure and edit them, plot to PDF or a printer, run scripts headless, and let the AI assistant (Mizan) build and check bills of quantities against the drawing. English and Arabic.

Tauri 2, React, TypeScript and Rust. Apache-2.0 (LICENSE); the libraries we ship and their licences are listed in LICENSES/THIRD-PARTY.md. The DWG/DXF reader and the geometry kernel (opencadcodec, opencadkernel) are MPL-2.0.

Features

• DWG and DXF (AutoCAD 2000 to 2018) with xrefs, images and PDF underlays; saves back with a .bak.
• Take-off: lengths, areas and counts; import a BOQ from Excel, compare it with the drawing, export.
• Draw and edit: lines, polylines, arcs, hatches, text, dimensions, tables, blocks, layers, groups, parametric constraints; undo for everything.
• Plot to PDF or a printer with CTB/STB plot styles.
• Command scripts in the window, or headless with qiyas-cli (convert, run, take-off, batch).
• Mizan, the AI assistant (Claude or any OpenAI-compatible service), and an MCP server for Claude Desktop and Claude Code.
• Autosave and crash recovery, automatic updates, English and Arabic.

Screenshots

Coming with the next release.

Install

Qiyas is still in development and has no published release yet. The first one will appear on Releases as AppImage, deb or rpm on Linux, setup.exe or MSI on Windows and a .dmg on macOS (Apple silicon or Intel), built by the release workflow; installed copies will check that page for updates (About, Check for updates). Until then, build it yourself (below). The installers will not be code-signed at first, so Windows SmartScreen and macOS Gatekeeper warn on first open; on a Mac, if Qiyas is reported as "damaged", open it once from System Settings, Privacy & Security, Open Anyway (or run xattr -dr com.apple.quarantine /Applications/Qiyas.app).

Build

pnpm install
scripts/pdfium.sh                                             # PDF support (once per machine)
scripts/check.sh                                              # fmt, clippy, tests, tsc, vitest
pnpm tauri dev --config crates/qiyas-desktop/tauri.conf.json  # run the app
pnpm bundle                                                   # installers in target/release/bundle

Needs Rust stable, Node 24 and pnpm. The window's Arabic font is Thmanyah Sans, a licensed font that is not in the repo: scripts/fonts.sh copies it from the company's copy, and without it the system's Arabic font is used. Drawing text uses Noto Sans and Noto Sans Arabic (OFL, included).

CLAUDE.md describes every part of the app and how we work here; docs/ holds the specs, plans, check reports and the decisions carried forward.

Contribute

Issues and pull requests are welcome: see CONTRIBUTING.md and the code of conduct. Report security problems privately (SECURITY.md). Changes are listed in CHANGELOG.md.