12 well plate map maker
Paint the layout by group, name the groups, and export a map and sample list your notebook and your analysis script both accept.
Click or tap wells to assign them to a group, or click a well and type to label it individually. Export produces the plate map and the sample list as Excel or CSV files.
Click or drag across wells to paint them with the selected group.
Why map a 12 well plate in a tool instead of on paper
Because the map outlives the run. A paper map stays in the notebook; an exported map travels with the data, into the analysis and the repeat experiment. At 12 wells the export takes seconds, and the position record it preserves is exactly what a reviewer, or your future self, needs to trust the result.
Related guides
Common questions
Can the maker do other formats?
Yes. The format switch at the top rebuilds the grid as 6, 24, 48, 96, or 384 wells, with the same groups and export. Layouts built for one format do not carry to another, so pick the format before painting.
What do the exports contain?
The plate map as a grid with group names and colors, and the sample list as one row per well: address, group, and label. Both export as Excel or CSV.