Free, browser-native well log viewer — load one or several wells and visualise, stack, overlay and correlate them instantly. Compute Vshale, porosity, water saturation and elastic properties. No upload, no account — everything stays on your machine.
LAS 2.0 · wrapped & unwrapped · multi-well · petrophysical toolbox · well tops · map view
Coordinates stay local — only background tiles come from OpenStreetMap.
No well coordinates yet. Add latitude / longitude in a well's Settings.
Crossplot
No matching curves. Load wells with common curves, then pick axes in the sidebar.
Toolboxcomputed curves & QC
Well previewscroll = zoom · drag = pan
Load wells first, then use the tools to compute new curves.
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Members Only
Sign in to access the Toolbox — computed curves, petrophysical workflows, and QC tools.
Load a SEG-Y file to begin.
Drop a SEG-Y file here — 2D lines or 3D volumes. Wheel = zoom time · Shift+wheel = zoom traces · Alt+wheel = gain · drag = pan.
Load seismic data and pick horizons to populate the scene.
No 3D content yet — load a SEG-Y line in the Seismic tab.
LogToolbox
v1.0
Browser-native LAS well log viewer & petrophysical toolkit
Display theme
Switch between dark and light mode
About Logtoolbox
✏ Fill in your description above — double-click to edit in VS Code, or edit index.html directly.
Capabilities
Multi-well LAS 2.0 viewer — stacked & overlay modes
Petrophysical toolbox: Vshale, porosity (density, sonic, neutron-density), water saturation (Archie)
Elastic properties: Vp, acoustic impedance, full moduli suite (K, G, E, ν, λρ, μρ)
Data QC — Hampel despike filter
Well top manager with cross-well correlation picks
Interactive map view with shapefile & GeoJSON export
Crossplot builder with color-by-curve
100 % browser-native — nothing is uploaded, no server required
Contact & Links
✏ Add your contact details above.
Release Notes
✏ Add your changelog above.
Licence & Data Privacy
All processing runs entirely in your browser. No well data, file contents, or coordinates are sent to any server. Map tile images are fetched from OpenStreetMap; everything else stays local.