Online Course Creation

Estimate a text’s silent reading time at 238 words per minute. Review word counts and the fixed-rate assumption before budgeting a reading session.

Keep tasks, dates, responsibilities, verified sources and learning evidence together with local saving, filtered CSV and JSON backup.

Compare actual lesson quotes using session length, session count, hourly rates, extras and explicit discounts, with labeled line-item costs.

Plan actual study tasks against available sessions, or summarize dated practice minutes and per-task accuracy, including unscored activities.

Build a complete monthly household plan with annual bills and savings, or follow dated transactions to find early shortfalls and extra opening cash needs.

Reproduce reviewed square-pixel active-image geometry for a documented target canvas using an explicit Fit/Pad or Fill/Crop mode and rounding rule.

Calculate whole-pixel image dimensions with a locked ratio or independent width and height, then compare scale and pixel area before exporting in an editor.

Count words, Unicode characters, sentences and paragraphs. Inspect English readability, estimate reading time and compare a selected publishing length rule.

Preview sRGB colors with adjustable color-vision models. Compare palettes and text pairs, check original contrast, and copy the simulated colors as CSV.