GearDXF is a free, browser-based gear generator used by engineers and makers to design custom involute spur gears and export them as DXF or SVG files for CNC and laser cutting. Unlike older gear generators, our tool provides native SVG and DXF exports with clean closed-loop paths, requires absolutely no installation or flash plugins, and is 100% free with no ads or paywalls. This free online gear generator uses the standard involute curve equation to calculate precision tooth profiles, ensuring smooth meshing and efficient power transmission.
Adjust parameters such as the number of teeth, module (or diametral pitch), pressure angle, and mounting hole diameter using the sidebar controls. The real-time preview matches your exact specifications, ensuring what you see is what you get. Design individual gears or complex multi-gear sets with multiple axles.
Download your designs in industry-standard formats. Use DXF export for compatibility with AutoCAD, SolidWorks, and Fusion 360. Use SVG export for vector graphic editors like Inkscape and Adobe Illustrator. Both formats produce clean, closed-loop paths optimized for CNC machining, laser cutting, and waterjet cutting.
This generator calculates tooth geometry using the standard involute curve equation. Supports standard pressure angles (14.5°, 20°, 25°) and custom values. The resulting profiles ensure smooth meshing for real-world mechanical applications.
No signup required. No cloud processing. All gear geometry is calculated locally in your browser for maximum privacy and speed. 100% free with no ads or paywalls.