MICROSCOPY · CELL COUNTING
Annotate microscopy images, tally cell categories,
and export counts with the marked image.
For laboratory teaching and microscopy research.
ANNOTATION & REVIEW
Color-coded marks connect each observation to its category. Review the image and counts together, then export both.
Open a microscopy image in PNG, JPEG, or WebP format, or explore the counting example.
Choose a cell category and mark its position. Flag observations for review with “Uncertain”.
Save the count table as CSV and download the annotated image for your report.
COUNTING & REPORTING
Observer-assigned categories. Select the cell type for each mark. Counts and percentages update as observations are added or removed.
A defined denominator. Each percentage is calculated from all marked cells in the current image, including those flagged “Uncertain”. The CSV records category counts, percentages, and the total marked.
Images stay on your device. Open and annotate images directly in your browser.
Export your counts and annotated image before changing images, reloading, or closing the page.