Borehole Log Digitizer

Upload a borehole log image — AI will extract all geotechnical data automatically. Review and edit the data, then generate charts for your report.

Drag & drop a borehole log image here, or click to browse

Accepts PNG, JPG, JPEG, WEBP

Free AI Extraction (No API Key Needed)

Step 1: Copy the prompt below.
Step 2: Open ChatGPT, Claude, or any AI chat — upload your borehole log image and paste the prompt.
Step 3: Copy the JSON response and paste it below, then click Load JSON.

AI Prompt (copy this):

Extract ALL geotechnical data from this borehole log image into the exact JSON format below. Return ONLY valid JSON, no explanation.

Use null for any value NOT visible in the image. Depths in meters. SPT in blows/30cm. UCS in kg/cm2.

{
  "borehole_id": "string or null",
  "location": "string or null",
  "water_table_depth": number or null,
  "samples": [
    {
      "sample_id": "SS-1",
      "depth": 1.5,
      "sample_type": "SPT or CORE",
      "spt_n": 50,
      "recovery_pct": 44,
      "rqd_pct": null,
      "description": "Silty gravel, gray, dense, non-plastic, GM",
      "classification": "GM",
      "water_content": null,
      "liquid_limit": null,
      "plastic_limit": null,
      "plasticity_index": 12,
      "ucs": null,
      "specific_gravity": null
    }
  ]
}

Paste AI JSON Response Here:

Analyzing borehole log image with AI...

This may take 15-30 seconds. 0s elapsed.

Review & Edit Data

Enter data from the borehole log image on the left. Right-click the table to add or remove rows.

Borehole ID

Location

Water Table Depth (m)