Free Geology Tools
Free structural-geology tools that run entirely in your browser — no sign-up, no install. Built by the team behind the GeoKit field app.
Stereonet Plotter
Plot strike & dip as poles or great circles on an equal-area net, with a strike rose and stats.
Strike & Dip Converter
Convert between right-hand rule, dip direction, and quadrant (N45E) notation instantly.
Apparent Dip Calculator
Convert true dip to the apparent dip seen in any cross-section or cliff-face direction.
Rose Diagram Maker
Plot strike or directional data as a rose diagram, bidirectional or 0–360°, with PNG download.
Take these tools to the field
The free GeoKit app captures strike & dip in one step and builds your stereonet automatically — offline, on iOS & Android.
Download Free