Online Colony Counter

20/07/2026

Ever wondered how many living bacteria are actually in a sample?

The Surface Spatula Method (spread plate technique) lets you find out, no expensive equipment required. Our new blog post breaks it down step by step: diluting, plating, and calculating your Colony Forming Units per mL.

https://online-colony-counter.com/how-to-count-bacteria-using-the-surface-spatula-method/

11/07/2026

Zooming in on microbial growth. 🔬

Colony counting is for example used to estimate the number of viable E. coli cells in a sample. After incubation, visible colonies are counted and reported as colony-forming units, helping assess microbial load, hygiene, and sample quality. We speed up this routine workflows with our Software Tools.

Check it out on www.online-colony-counter.com!

10/07/2026

Analyze agar plates on the go!

Take a photo, upload it, and count colonies directly from your phone. Fast, simple, and made for practical lab workflows. 🧫

Biotech DigitalLab Laboratory LifeScience

10/07/2026

Analyze agar plates on the go, even mobile!

Take a photo, upload it, and count colonies directly from your phone. Fast, simple, and made for practical lab workflows. 🧫

Biotech DigitalLab Laboratory LifeScience

10/07/2026

Count agar plate colonies directly from your phone.

Upload an image, analyze the plate, and get results in seconds. Simple, fast, and built for everyday lab work. 🧫

Biotech Laboratory DigitalLab MicrobiologyLab

04/07/2026

We recently implemented some free browser based microbiology tools for open-source usage:

1. Agar Plate Colony Counter (Desktop)
2. CFU Calculator
3. Serial Dilution Calculator
4. OD600 → CFU/mL Converter

You can use all of these software tools for free to validate your calculations and dilutions for your agar plates.

03/07/2026

Your agar plates are probably being stored wrong. Learn how to prevent drying, contamination, and waste with these lab-tested storage practices. 🧫

Guide how to store agar plates correctly to extend shelf life, prevent contamination. Practical storage tips for microbiology labs.

01/07/2026

Counting colonies on agar plates can be slow and repetitive.

Our AI Colony Counter is made to make this process faster — while still allowing users to review, correct, add, or remove detections manually.

Check out our demo video here:
https://www.youtube.com/watch?v=qSOwi9QnGVU

In this short demo, I show how the AI Colony Counter helps detect a...

01/07/2026

Counting colonies on agar plates can be slow and repetitive.

Our AI Colony Counter is made to make this process faster — while still allowing users to review, correct, add, or remove detections manually.

In this 40-second demo, you can see the workflow from image upload to final export.

23/06/2026

Our Online Colony Counter now includes a built-in CFU Calculator. Just count your plate, enter your dilution factor and plated volume, and get your CFU/mL result instantly — no more manual math!

👉 Read more here:
https://online-colony-counter.com/cfu-calculator-2026/