Count solar panels on a roof or array from a photo
AI Solar Panels Counter

Count solar panels on a roof or array from a photo

Shoot the area from directly above in a single pass so the solar panels sit flat in frame and do not hide each other — counted detections receive dots for review. Built for surveyors, site managers, solar installers and car park operators — review and correct each photo before adding it to a CSV or PDF tally.

  • Review the photo, then count visible solar panels
  • Mark an example of each different-looking kind — up to three — before you count
  • Stop counting the same solar panels twice to be sure of the total
  • Free to use · No signup required · Without watermark

Works with JPG, PNG, WEBP · Free up to 11 MB, Premium 50 MB

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Frequently asked questions

How high should the drone or camera be?
High enough that the whole area fits in one frame, low enough that each item is still a clear shape — a few dozen pixels across is a good target. Keep the camera pointing straight down and the light even, then review every marker before using the total. Two passes only compare with each other if the height and angle match.
Does it count single modules or whole tables?
It counts whatever you mark. Mark one module and it tallies modules; mark one complete table and it tallies tables instead. Panels at a steep angle to the camera foreshorten and can merge, so shoot as close to straight down as the site allows and review every marker.
What if the photo has more than just solar panels in it?
Your marked examples tell the counter exactly what to count. Drag a tight box around one complete, clearly visible solar panels — up to 3 examples for different-looking kinds — and only matching items are counted. Similar-looking distractors can still affect the result, so review every marker before using the total.
Can I count several photos into one total?
Yes — count each photo with its own marked examples, and add every result to the tally sheet as a labelled row. A marked example belongs to the photo it was drawn on, so mark each photo as you go. Export the tally as CSV or a PDF report, or save it to your account.
Is it free and private?
Yes. You can count, review and download a free result without an account. Downloads are free without a watermark. No signup required. Server-processed photos are encrypted in transit and removed under our Security policy.

What you can do with Object Counter

Review the main capabilities before you begin.

  • Count objects in a photo instead of tallying by hand
  • Tally coins, pills, cells, parts and beads
  • Optionally mark an example to target a specific item
  • Review counted detections with overlay markers
  • Run a bulk audit across many photos
  • Fine-tune sensitivity to ignore tiny specks

Settings reference

Available controls for Object Counter.

Upload

Single photo / Bulk auditPresets
Choose a single-photo count or a Premium bulk audit. Review every result.Options: Single photoBulk audit

Count

Add to tallyOne-click
Add this photo as a row in the current stock-take.
Counting modePresets
Chooses the counting engine: Auto and Similar items count from your marked examples — mark 1 to 3, one complete object per different-looking kind; Distinct objects labels separate, fully visible items without an example.Options: AutoSimilar itemsDistinct objects
Included markersSliderRange: 0–1 · Default: 0.21
Starts at 21%; slide toward Show more to include weaker markers or Only strongest to hide them.
Overlay stylePresets
Choose dots, a heatmap, both or a clean preview.Options: BothDotsHeatNone
What to countText input
Type the item to count, such as cow, bottle or car, so other objects in the photo are ignored; leave it blank to count everything.
Detection sensitivitySliderRange: 0–1 · Default: 0.5
Adjust detection sensitivity for larger or smaller visible items.

Examples

Mark example itemsDraw on image
Drag a tight box around one complete, clearly visible item. The counter uses it as a visual reference; review every result marker for lookalikes or missed items.

Tally

LabelText input
Rename this row so it is identifiable in the exported stock-take.
CountNumber input
Correct this row's count; totals and exports update automatically.

Advanced

Result overlayDropdown
Choose how count markers appear on the downloaded result.Options: Dots + heatmapDots onlyHeatmap only
Ignore small detectionsSliderRange: 0–1 · Default: 0
Ignore detections below the selected size.
Free to use · No signup required · Without watermarkUploads are encrypted in transitRemoved under our retention policy

How Object Counter helps you get it done

Real problems it solves every day — for businesses, creators, and everyday tasks. Find the use case that fits you and start.

For Business

Reviewed Warehouse Cycle Counts

Use Bulk audit to run Distinct objects mode across every shelf photo in the queue, review every result, and correct the per-shelf tally before exporting a cycle count.

For E-commerce

Small-Parts Inventory for Makers & Etsy Sellers

Mark the bead, screw or component you need in the Examples setting — 1-3 examples, one per part type — then run the count. Review the matching markers for background mistakes, then add the corrected result to the tally sheet.

Education

Classroom & Lab Supply Counts

Create an AI-assisted draft of dice, counters, test tubes or lab kits, then review and correct the markers before exporting a reorder tally.

Productivity

Shareable Stock-Take Reports for Teams

Save a completed stock-take to your account, generate a branded PDF report, and share a read-only link so managers or teammates can review the count without re-uploading anything.

For Developers

Batch QC Counts for Packed Finished Goods

Run Similar items mode after marking 1-3 example units in the Examples setting — one per pack type in the shot. Review every marker and correct misses or duplicates before shipping.

Personal Use

Hobby Collection Counts for LEGO, Trading Cards & Models

Mark 1-3 example pieces in the Examples setting — one per piece type you're counting — then run the count. Review the result markers and correct the tally instead of starting a manual count from zero.