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Freehand Georeferencer QGIS 4 compatibility
QGIS 4 ready Active
Yes — Freehand Georeferencer supports QGIS 4 (declared max version 4.99.0).
An intuitive georeferencing (coordinate-correction) tool for vector and raster layers. Grab a point and release it at the new position to add control points, preview the Helmert/Affine transform in real time, and apply the result.
About
Align survey/CAD-derived vector data or scanned/old raster maps to known points with a direct, PowerPoint-like feel (move, rotate, scale). No numeric input is required: control points (GCPs) are added with the mouse only. For vector layers, press an old node and release at the new position; sources snap to vertices of any visible vector layer. For raster layers, press a recognizable point on the image and release at its correct map position (free-point source; the image itself has no vertices). When a raster has no GCPs yet, a one-click helper adds a first GCP from the raster center to the map canvas center to reduce long-distance panning. The transformed geometry/image is previewed in real time while dragging. Per-GCP X/Y error, overall RMS, standard deviation and scale factor are shown; residuals are colored green-to-red and the list is sortable. Transforms: Helmert (fixed scale or with scale) and Affine. Apply: vector -> new memory layer, add to current layer, or in-place edit (undoable); raster -> a new georeferenced layer written as a VRT with an updated geotransform (no resampling, lossless). Raster snapping now supports the full 3x3 frame grid on the source raster and on other visible raster layers, and nested VRT-to-VRT georeferencing keeps prior rotation/shear/scale edits aligned with the preview. GCPs can be saved/loaded as CSV. Same-CRS workflow only (no reprojection): keep the layer CRS and the project CRS identical; a warning is shown when they differ. Acknowledgment: the interactive UI (grab a point and move it to add control points) is inspired by the "Freehand Raster Georeferencer" plugin by Guilhem Vellut (https://github.com/gvellut/FreehandRasterGeoreferencer); licensed under GPL v2 or later, this plugin is distributed under GPL v3.
| Author | Sanda Takeru |
|---|---|
| Downloads | 17,776 |
| Latest version | 20261007.1 |
| Last updated | 2026-10-06 (9 days ago) |
| Min QGIS | 4.0.0 |
| Max QGIS | 4.99.0 |
| QGIS 4 ready | Yes |
| Maintenance | Active |
| Category | Georeferencing & CAD |
| Tags | vector, helmert, gcp, python, affine, transform, georeferencing, raster |
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Maintenance: Active = updated within 1 year, Quiet = 1–3 years, Likely abandoned = over 3 years.