Built by Kobe Anderson, a behavioral neuroscience graduate student. Combine compatible CSV exports with source filenames, missing-value checks and exact-duplicate detection; reshape wide tables into long format; and convert video frames to elapsed seconds. Inputs stay in your browser, with no account required. The CSV workbench supports up to 20 files and 10 MB total with matching column names. All three tools and their downloads are free. Contributions are optional and help maintain these tools and build more. A separate $10 CSV-preparation service is available by request after a scope check.