Rastreador de Hábitos

What a streak actually measures — and why it motivates

A habit tracker turns an abstract intention ("exercise more") into a concrete daily yes/no record. The psychology is simple but powerful: once you have a run of consecutive completed days, you become reluctant to break it. That unbroken chain is your streak, and it is the single number most likely to keep you going on a day you would otherwise skip. This tool computes three numbers for every habit so you can see both momentum and the bigger picture: current streak, best streak, and a 30-day completion rate.

How the three statistics are calculated

Each time you tap a habit's circle, today's date is added to that habit's record (tap again to remove it). From that list of completed dates the tool derives:

• Current streak — it counts backwards from today: today, yesterday, the day before, and so on, stopping at the first missed day. If you have done the habit today, three days ago, but missed yesterday, your current streak is 1, not 4. Gaps reset it.
• Best streak — it scans your entire history, looking for the longest run of dates exactly one day apart. This is your personal record, and it stays even after a current streak breaks, so a bad week never erases your proof that you can do it.
• Last 30 days — it checks each of the past 30 calendar days and reports the percentage you completed. A 70% rate means 21 of the last 30 days. This metric is more forgiving than a streak: it rewards consistency without punishing a single missed day.

The "Show calendar" toggle reveals a 30-cell heatmap, oldest day on the left, with green squares for done and grey for missed — an at-a-glance pattern of where your week tends to fall apart.

A worked example

Say you add "Read 20 minutes" and mark it done on June 1, 2, 3, and 4, miss June 5, then mark June 6 and 7. On June 8 (today) you have not yet tapped it. Your current streak is 0 (today is not done, so the backward count stops immediately). Your best streak is 4 (June 1–4). Your 30-day rate is 6 done out of 30 days shown, or 20%. Tap today's circle and the current streak jumps to 1 and the rate ticks up — instant feedback that nudges you to keep the chain alive.

Why "best streak" never resetting matters

Many people abandon a habit the moment they break a long streak, feeling they have "ruined" it. By keeping your best streak permanently visible, this tool reframes a slip as a temporary dip rather than a failure. The goal is to make the next day green, not to mourn the broken chain. A 30-day rate of 80% with occasional misses beats a perfect 10-day streak followed by quitting.

Practical tips for habits that stick

• Make habits small and specific. "Do 5 push-ups" is binary and easy to mark done; "get fit" is vague and never feels complete. A tracker works best with habits that have a clear daily finish line.
• Track a handful, not twenty. Three or four habits you actually complete build more momentum than a long list that turns mostly grey. Add more only once the first ones are automatic.
• Use the heatmap to find your weak day. If the calendar shows a grey gap every Saturday, that is a scheduling problem, not a willpower problem — move the habit earlier or attach it to an existing weekend routine.
• Mark it the moment you finish, not at the end of the day. Tapping immediately reinforces the action and avoids the "did I already do that?" uncertainty.

Common mistakes

• Chasing the streak at the cost of the habit. If you do a token version just to keep a number alive, the habit hollows out. The streak serves the habit, not the other way around.
• Adding too many habits at once. Spreading attention thin guarantees a sea of grey squares, which is discouraging. Start with one.
• Treating one miss as failure. The research-backed rule of thumb is "never miss twice." One grey day is noise; two in a row is the start of a new pattern.

Where your data lives

Everything you track is saved in your browser's localStorage on this device — nothing is sent to a server, and there is no account to create. That means your habit history is completely private, but it also means it lives only in this browser: clearing site data or switching to another device or browser starts you fresh. If your records matter to you, periodically jot down your streaks elsewhere, since there is no cloud backup.