Comprehensible Input Tracker

Watch time by language, built from your Google Takeout YouTube history.

Import watch history

Drop in a Google Takeout export (the watch-history.json file, or the whole .zip Takeout gives you) to bring in everything watched since your last import. Re-importing overlapping exports is safe — duplicates are skipped automatically.

Drop watch-history.json or Takeout .zip here, or click to choose a file

Quick-add a video

Optional top-up for anything you want logged right now, without waiting on the next Takeout export.

Weekly watch time by language

Channel language defaults

Set a default language for a channel once, and every video from it (without its own override) inherits it. Useful for "English-titled" channels that actually teach another language.

Video log

Video Channel Watched Duration Language