Write up an experiment the tidy way — every standard section is here, from aim and hypothesis to a results table you can grow, discussion and conclusion. Click any heading or box to type. Add rows and columns to the results table as your data needs. Everything is kept in this browser and never uploaded. Save it as a PDF (via print) or a PNG image.
Everything stays in your browser — your report is never uploaded. Print or “Save PDF” gives you a clean document without the toolbar.