Design plate maps for 96-well and 384-well plates. Click to assign conditions, apply templates for standard curves and serial dilutions, export to CSV. Data never leaves your browser.
When to use
Do not use for
Outer wells (especially corners) lose more volume to evaporation. Fill edge wells with buffer or use them for controls. If you must use them for samples, use a humidified incubator.
Always note which corner is A1 (usually top-left with the notch). Rotating the plate 180° swaps all well assignments. Mark the orientation on the plate.
Systematic layouts (all controls in row A) are easy to read but introduce position bias. For publication-quality data, randomize sample positions and include plate position as a covariate in analysis.
Interactive 96/384-well grid with click and drag-to-select. Condition assignment by color-coded categories. Pre-built templates for common assay layouts. Export to CSV (well, row, column, condition) or JSON.
Last validated 2026-04-05. Calculations are designed for planning and documentation support; verify procurement decisions against manufacturer specifications or institutional SOPs.
ConductScience 96/384 Well Plate Map Designer (v1.0). ConductScience, Inc. 2026. Available at: https://conductscience.com/tools/plate-map-designer
A well-designed plate layout minimizes systematic bias and maximizes statistical power:
• Edge effects: Avoid placing critical samples in edge wells (row A, row H, column 1, column 12) where evaporation is highest. Use these for blanks or controls. • Randomization: Randomize sample positions to avoid position-dependent bias. Avoid placing all controls in one corner. • Replicates: Use at least triplicates for quantitative assays. Distribute replicates across different plate regions. • Standards: Place standards in duplicate or triplicate, spanning the expected concentration range. Include blank wells.
