About
Welcome to the Survey Tools collection. This site provides a range of web applications designed to assist surveyors in their daily tasks.
Tools we currently offer:
- GSI Viewer: View, analyze, and convert Leica GSI files from both Levels and Total Stations.
- LSG Converter: Convert to and from London Survey Grid 2025.
- Rail Analysis Dashboard: Visualise and analyse rail data purely from LHR and RHR survey data.
- Resection Lab: Simulate the effect of geometry and instrument accuracies on resections.
- DXF to CSV Extractor (beta): Easily convert DXF files to CSV format for data analysis.
More tools are coming soon, so stay tuned!
If you have a specific idea, requirement or just want to get in touch:Email Us
Other applications available from this site's developer:
- CPD Logbook - a useful tool for logging, managing and reporting CPD activities.
- MyMileageLog - a useful tool for fleet managers needing a digital way to record vehicle mileage, safety checks and Co2 output (in development)
| Version | Date | Description |
|---|---|---|
| 1.6 | 10/02/2026 | Beta build of DXF to CSV Extractor tool. Enabling easy parsing of DXF points to a tabulated format. |
| 1.5 | 15/01/2026 | Update of LSG converter to version 2.1 with the addition of London Transport and satellite imagery layers. |
| 1.4 | 15/12/2025 | Update of LSG converter to include OSGM15 & LSGGM2025 Geoid Models for precise height transformations. |
| 1.3 | 12/12/2025 | Introduction of Resection Lab (Beta) for review & testing. |
| 1.2 | 07/12/2025 | Update to Coordinate Conversion tool. Improved CSV handling. Updated map views. |
| 1.1 | 27/08/2025 | Bug fixes, introduction of Rail Analysis Dashboard V1.0 (WIP) |
| 1.0 | 11/08/2025 | Initial release of the Survey Tools collection. GSI viewer V1.0, LSG Converter V1.0 (WIP) |