Settings
Name your challenge, tweak how many days run and when day one is, skim privacy notes, or wipe everything for a clean slate.
Challenge & schedule
Reset21 tracks one challenge at a time. Give it a name so Challenge tool, Report, and your header remind you what you're working on—the name is optional but helps on long runs.
Challenge dates use India Standard Time (Asia/Kolkata)—“today”, which day is current, and resets all follow that zone, not necessarily your device clock.
Cross-device sync (no sign-up)
Use a personal sync key to back up your challenge to private storage and restore it on another device. We still do not require an account. Anyone with this key can read and overwrite the backup, so keep it private.
Tip: keep this key in your password manager or notes. If you lose it, we cannot recover your backup.
Privacy
We deliberately keep Reset21 boring on the signup front: there is nothing to log into and we do not silently copy your list to our servers. By default the numbers live in everyday browser storage on whichever gadget opened the site. If you choose to use the sync key section above, you can manually back up and restore across devices without creating an account.
Reset everything to defaults
This wipes all your saved progress on this browser—including the challenge label—and puts you back to the default length (21 days), today's date as day one, and empty day cards—like a fresh start. There is no undo, so only use it when you really want a clean slate.