Free Agar Plate Counter

A free agar plate colony counting software for desktop usage, using classic Javascript pixel analysis.

You can upload your image of an bacterial or fungal agar plate and start counting. Please note that the result of the colony counting process depends on the quality and resolution of your image. Our free online tool for counting agar colonies is optimized only for desktop use. You can use this automated colony counting software for free and also publish results in your papers/documents.

How to count your plates

1

Upload an image of your agar plate

2

Draw a circle to outline the plate and trim the edges

3

Select the colony type you wish to count

4

Click “Count Colonies”

5

Adjust the threshold and minimum/maximum colony size

6

Download your results!

Note: By uploading images, you confirm that you have read, understood, and agreed to these Terms and Conditions.

Please share feedback at:
Chris@online-colony-counter.com