Home › Vector tools › Topoliner
Topoliner QGIS 4 compatibility
QGIS 4 ready Active
Yes — Topoliner supports QGIS 4 (declared max version 4.99.0).
Topology check, cleanup and coverage model for polygon and line layers: snapping, missing nodes, dangles and overshoots, assembly check, topology-preserving simplification
About
Brings polygon coverages into order. Finds topology violations and separates certain debris from cases that may carry meaning: the first group is fixed silently, the second is only reported and never changed automatically. Snaps neighbouring borders to an exact match without moving any vertex further than the tolerance, inserts missing nodes without changing shape or area at all, checks whether groups of objects assemble into one body, and simplifies while keeping shared borders shared. Replaces the manual routine of snapping a layer to itself followed by a dissolve without attributes. All tools live in the Processing panel and work in models and in batch mode. Interface in English and Russian. Tested on QGIS 3.16 through 4.0. A companion to the Isoliner kriging and contouring toolset (plugins.qgis.org/plugins/grid_isolines) and to Isoliner3D, a standalone 3D viewer for geological surfaces and bodies (plugins.qgis.org/plugins/isoliner3d). Developed with the support of Inform++ LLC (www.informpp.ru).
| Author | ООО «Информ++» |
|---|---|
| Downloads | 1,775 |
| Latest version | 0.13.2 |
| Last updated | 2026-10-03 (12 days ago) |
| Min QGIS | 3.16.0 |
| Max QGIS | 4.99.0 |
| QGIS 4 ready | Yes |
| Maintenance | Active |
| Categories | Vector tools, Georeferencing & CAD |
| Tags | generalization, node, coverage, simplify, vertex, overlaps, slivers, cleaning, topology, validation, polygon, snap, gaps |
Homepage · Repository · Issue tracker · Official page
Alternatives in Vector tools
- HCMGISQGIS 4 ready
HCMGIS - Basemaps, Download OpenData, Batch Converter, VN-2000 Projections, and Field Calculation Utilities
- mmqgisQGIS 4 ready
A collection of QGIS vector layer operation plugins
- Shape ToolsQGIS 4 ready
Shape Tools is a collection of geodesic shapes and tools. Create circle, ellipse, line of bearing, points along a line of bearing, concentri
Related plugins
- TopoTidyNot QGIS 4 ready
Turn messy vector data into clean topology in QGIS: cleanup tools (snap, trim, extend, split, dissolve, fix geometry, simplify, remove dupli
- GeoVanguardQGIS 4 ready
Open-source tools for large, complex remote-sensing and GIS data in QGIS — including smoothing of polygon maps and classified rasters (e.g.
- Polygon validator EUDR 2Not QGIS 4 ready
EUDR-oriented polygon quality-control suite: geometry repair and overlap cleaning, interior centroids with Longitude/Latitude, self-intersec
- PolygonValidatorNot QGIS 4 ready
🔷 Polygon Validator: Detects and visualizes polygon geometry anomalies like slivers, overlaps, close or duplicate vertices, and sharp angles
- Align Features to PathQGIS 4 ready
Snap and align polygon/line features to a digitised alignment path with gap-free shared boundaries (Global Master Path Snapping).
- KAT Analyse - Overlap area (Multi-Types)Not QGIS 4 ready
Spatial analysis plugin that detects and classifies geometric anomalies for points, lines and polygons (duplicates, topology issues, overlap
Maintenance: Active = updated within 1 year, Quiet = 1–3 years, Likely abandoned = over 3 years.