AGS 4.x & DIGGS 2.x validator
Drop your geotechnical data file. We'll parse and validate it against 27 documented schema and integrity rules, render every borehole as an interactive soil-log strip, pin coordinates on a map, and let you convert to AGS · DIGGS · GeoJSON. Nothing ever leaves your browser.
Drop a file to begin
Your soil log, group breakdown, coordinate map, and validation findings will appear here. We never upload your data — every byte is parsed inside this tab.
GROUP/HEADING structure, required fields, USCS symbols, foreign keys (GEOL→LOCA, SAMP→LOCA), depth monotonicity, coordinate sanity, TYPE token whitelist, depth-unit conventions, and more.
Normalised AGS 4.x · DIGGS 2.6 XML · GeoJSON FeatureCollection. Plus a printable validation report you can attach to a hand-off email.
A replacement for the official AGS registry editor — we don't write back to the AGS database registry. Use this for inbound QA, conversions, and quick sanity checks before billing your client.
Why this exists
AGS 4.x is the dominant geotechnical data format in the UK, Hong Kong, Singapore, and Australia. DIGGS 2.x is the US and OGC-blessed global standard. Most tools that “support” these formats round-trip lossily, charge per-seat, or require installing a Windows-only app. TerraBrains is built DIGGS-native and AGS-native, and we ship this validator as a free public service so anyone can verify their files before sending them on. If your firm cares about defensible data interchange, this is your tool.
How we compare to the paid tools
Everything you used to pay for, free in a browser tab.
| Feature | TerraBrains | Legacy desktop tool | Other AGS editor | Cloud data platform |
|---|---|---|---|---|
| AGS 4.x validation | ||||
| Rule codes documented | 27 | ~ | ~ | ~ |
| DIGGS 2.x parsing | — | — | — | |
| AGS ⇄ DIGGS conversion | free | paid add-on | paid add-on | — |
| Soil-log visualisation | free | paid add-on | — | paid add-on |
| Borehole map | free | paid add-on | — | paid add-on |
| AI fix explanations | free | — | — | — |
| File health grade A–F | free | — | — | — |
| Local-only parsing (privacy) | — | — | ||
| Price | Free | $$$ / yr | $$$ / yr | $$$ / yr |
More free validator tools
Diff two AGS or DIGGS files → Compare an old delivery against the new one and see every row that was added, removed, or modified — with field-level red/green highlights.