Simple tools to visualize your data
Datavisly is a free, browser-based toolkit for working with your data. No sign-up, no upload — your files stay on your device.
Application
Terrain Grid
AppA full bathymetry & terrain grid studio. Convert GEBCO Esri ASCII (.asc) to Surfer 6 (.grd), resample, view contours, and digitize gauge points — handling multi-GB grids entirely in your browser.
Launch Terrain GridTools
CSV Viewer
Open any CSV file and view it as a clean, sortable table. Parsed in your browser — nothing is uploaded.
Chart Builder
Coming soonTurn your data into bar, line, and pie charts you can download and share.
JSON Viewer
Coming soonExplore and format JSON data in a collapsible tree view.