OctaBit CAD is precise 2D drafting for Windows: floor plans, parts, sheets and schedules in one fast app, entirely offline, with a full Arabic interface. DRAFT PRECISELY Lines, polylines, rectangles, circles, arcs, ellipses and splines, all in millimetres. Object snaps, ortho and polar tracking, geometric constraints and driving parameters: edit a value and watch the part resize. A command line with the aliases your fingers already know. ARCHITECTURE BUILT IN Walls that clean up their own joins, doors and windows that belong to them, named rooms, tags, keynotes and revision clouds. Door, window and room schedules refresh from the plan. Bills of materials and attribute schedules included. DIMENSION AND ANNOTATE Linear, aligned, angular, radial, diameter and ordinate dimensions, leaders, text and tables. Auto-dimension a selection in one command. Dimension styles with annotative scaling. PLAYS WELL WITH OTHERS Opens and saves DXF and DWG (R12 through R2018). PDF and image underlays: calibrate to a known distance, then trace a scan into a real drawing. Exports SVG, PNG, PDF and DXF with plot styles. Layouts, viewports and printing to scale. FROM DRAWING TO WORKSHOP Extract closed profiles, nest parts onto stock sheets with a stated yield, and generate G-code with tool checks. Heal imported geometry: close gaps, join fragments. BATCH IT FROM THE TERMINAL The same app is a command line: convert, export, publish, heal, nest and cam in bulk, with real exit codes. Print whole folders of drawings to PDF in one command. PRIVATE BY DESIGN No sign-in, no cloud, no telemetry. Every feature works completely offline, so your drawings never leave your computer. A one-time purchase: no subscription, no account, and every feature unlocked from the moment you install it.