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Updates

2026-10-08 NijiCAD v1.6.1 Released

The performance of loading large drawings and the responsiveness of Object Snap have been further improved.

The process of opening a drawing has been divided into several stages, and adjustments have been made to address areas where the workload tends to vary depending on the data. This time, we improved a performance issue that occurred when a drawing contained a large amount of data related to display order, which could slow down the loading process.

In addition, the progress of opening a file is now displayed in the command line. This makes it easier to see that the loading process is progressing, especially when opening large drawings.

We will continue to improve the waiting time and responsiveness before you can start working with large drawings.

2026-10-02 NijiCAD v1.6.0 Released

We have significantly improved drawing data loading. We have confirmed that NijiCAD can now open several drawings with large blocks and deep block nesting. As a result, the responsiveness of object snaps has also been improved. Until now, we had avoided complex caching mechanisms because we had focused on implementing the fundamental behavior of a CAD system. The fundamental structure of NijiCAD as a CAD system is now taking shape, but there are still many areas that need further improvement. We will continue working to make NijiCAD a more comfortable CAD system to use.

2026-09-29 NijiCAD v1.5.8 Released

NijiCAD now supports diameter and radius dimensions.

Based on dimension behavior commonly used in AutoCAD and DWG-compatible CAD applications, NijiCAD has redefined these behaviors to make them easier to work with. The settings are also preserved when exporting to DXF.

The behavior of dimensions is ultimately determined by the CAD application. When editing existing drawings, you may find yourself wrestling with property palettes, dimension styles, and other settings.

We have also fixed several issues discovered after implementing DWG import.

At the same time, we found that DWG import performance still has some room for improvement.

In particular, processing can become significantly slower with drawings where external references have been bound, resulting in extremely large blocks, a very large number of blocks, or deeply nested block structures.

NijiCAD was not originally designed with such enormous datasets in mind. However, working with actual DWG files has shown us that there is still plenty of room for improvement.

We will continue working to improve the DWG import process.

2026-09-21 NijiCAD v1.5.6 Released

DWG file import is now supported.

DWG files are read-only. To reuse the data, you can save it in NijiCAD format or DXF format and continue using it as before.

Other Improvements

  • Switch between relative and absolute coordinates when specifying coordinates with DYNPICORDS
  • TrueColor support

2026-09-08 NijiCAD v1.5.4 Released

Imperial units are now supported.

The display scale of linetypes and hatch patterns is controlled by the drawing’s unit system. The MEASUREMENT command has also been added.

Length dimension formatting now supports imperial units. These settings can be configured in the Drawing Management Palette.

The format used when creating length dimensions is controlled by DIMLUNIT. For dimensions already placed in the drawing, the format can be changed from the Properties.

Two dimension arrowhead types, Closed filled and Arch tick, have been added.

For print paper sizes, ANSI and ARCH are now available as imperial paper size standards.

You can try these features immediately by opening the ISO, ANSI, and ARCH template drawings from the Sample Palette.

DXF Saving

When saving to DXF, linetypes are assigned to unit-system-specific linetype names.

For example, Center is replaced with either Center_Metric_NijiCAD or Center_Imperial_NijiCAD, depending on the drawing’s unit system.

For hatch patterns, the predefined pattern names are already available in DXF, so they are not separated by unit system. Instead, the pattern definitions are converted according to the unit system.

Improvements

  • Added a “Select All” option to TRIM / EXTEND

2026-08-25 — NijiCAD v1.5.3 Released

Added Nearest, Tangent, and Perpendicular object snaps for ellipses. Also improved intersection detection between ellipses.

2026-08-21 — NijiCAD v1.5.2 Released

Improved ellipses and elliptical arcs.

  • Grip editing for quadrant points and extensions from endpoints
  • Intersection object snap
  • Trim and Extend support

2026-08-09 — Launched on Product Hunt

NijiCAD was launched on Product Hunt.

Previous Updates

For updates prior to v1.5.0, please see the NijiCAD Blog.