Create a coordinates UTM grid on closed polylines. You can choose between a continuous grid or a cross grid. Set your preferences in the dialog box.

This app can be used to select entities based on the properties of the selected sample entity. All supported properties of the entity will be displayed in a DCL box.

The plug-in allows user to change the rotation, base point, scale and many other options while copying or moving objects.

Layout Manager allows users to create, copy, rename, delete, and sort layouts using a window interface.

Reinforced concrete detailing software.

Reinforced concrete detailing software and automatic bar bending schedules.

OCF検定に合格しているDWGとSXF形式（sfc/p21/SFZ/P2Z）への相互変換ツールです。 またCivil 3Dで出力したLandXMLに、日本独自の属性を付加し、「３次元設計データ交換標準（案）Ver.1.3」として出力します。

Draws precise slope patterns between two curves using a 2D projection algorithm. Prevents distortion on steep terrain. Supports Elastic, Perpendicular, and Hybrid distribution methods.

JSON Exporter For Autodesk® AutoCAD® exports the model to a JSON (.json) file.

Make use of AutoCAD® Architecture, AutoCAD® MEP, or AutoCAD Civil 3D in your BIM process. Property Set values can automatically be updated back and forth to one or many external databases.

Align text or other objects on lines, arcs, polylines, featuring many other "plus" commands.

App for Autodesk® AutoCAD® makes it easy to create or draw a catenary curve as a polyline by specifying the start and end point and the length/immediate point/sag and optionally a diameter(width).

Show the DWG and DXF version and properties and metadata in Explorer columns or in file dialog boxes within Autodesk® AutoCAD® or other applications.

DWG Columns freeware shows the DWG and DXF version in Explorer columns or in file dialog boxes within Autodesk® AutoCAD® or other applications.

Creates random flagstone patterns or layouts based on certain rules.

Drawing Windows Colors changer for OSNAPZ.

This app can be used with Autodesk® AutoCAD® to enable the OFFSET command to work with externally referenced drawings, blocks, and lines within associated arrays, dimensions, and tables.

Manage drawings with many layouts more easily in a palette

Quickly renumber and insert the total number to the sheet set to show them up in fields [Sheet number]/[Total Number] in your title block.

JTB Rebar is a BIM-like Rebar Callout - Automatic Rebar Table - Dynamic Beam Detailing app for Autodesk® AutoCAD®.

Convert all raster images in drawing(s) to OLE objects, it's like binding external image references.

JTB Quick Perspective for Autodesk® AutoCAD® will transform Points, Lines, straight Polylines, and "landscape" Blocks to perspective view drawing, all in 2D working space.

This tool is for surveying. From a selected polyline, the app will create a Pline Closure text report, shown in Autodesk® AutoCAD® Text Window, and/or saved to a text file.

JTB Spot Elevation is an app to insert surveying Spot Elevation blocks and manage them on an Edit Properties spreadsheet.