Yes. Tsuzuki is completely free, with no signup and no ads.

Airing schedules, premieres and finales come from AniList, and headlines come from Anime News Network. The data is refreshed every time you open the calendar.

All air times are converted to your device's local timezone automatically, with live countdowns to each episode.

Both. Every episode can carry up to three times: the Japanese TV broadcast (RAW), the subtitled simulcast (SUB) and the English dub (DUB). Pick which ones you want with the 🎧 button in the toolbar — by default Tsuzuki shows the subtitled release and falls back to the broadcast time when a show isn't simulcast. Times we derived rather than confirmed are marked with a ~.

Delays and broadcast breaks are shown inline, with the reason where we have it. A delayed episode moves to its new time and is flagged; a break week is shown as a break instead of a phantom episode, and never fires a countdown or an alert. If you spot a time that's wrong, use "⚠ Report a wrong time" in any show's details — corrections go live without waiting for a new release of the site.

Yes. Follow a show with the bell icon to get browser alerts before each episode. On browsers that support scheduled notifications, alerts can fire even when Tsuzuki is closed.

Yes. You can add individual episodes to Google Calendar or download an .ics file, or subscribe to a live feed of premieres, finales, or all episodes that updates automatically.

Yes, in both directions. Connect your account in ⚙ Settings and your list — including private entries — comes across; after that, every status, score and episode-progress change you make here goes back to AniList automatically. Removing a show from Tsuzuki never deletes it on AniList. You can also import any public list by username without signing in at all.

Yes — a free, keyless one at /api/. It's the only anime schedule API that returns sub, dub and Japanese broadcast times as separate entries, with delays and broadcast breaks already corrected. Attribution to AniList and Tsuzuki is required if you ship something public with it.

Yes. Every show has your own 1–10 rating and a private notes box, shown alongside the community score on your board, in the calendar and in search. Both are saved only in your browser and are never uploaded.

Yes. Tsuzuki is a progressive web app you can install on your phone or desktop, and it opens offline using your last loaded schedule.