A monthly habit tracker that lives entirely in your browser. No sign-up, no cloud, no tracking. Just you and your habits.
Each row is a habit, each column is a day. Check off completions with a single click โ or navigate entirely by keyboard. Scroll through all 31 days with sticky habit names on the left.
Log your daily weight in kg right inside the habit grid โ supports decimals like 70.5. One unified view for all your daily metrics, no separate app needed.
Every column automatically calculates a score โ the percentage of habits you completed that day. See your best days and your worst in one glance at the footer row.
Each day's column header shows an emoji reflecting your performance โ ๐จ 0%, ๐ฑ <40%, ๐ณ <80%, ๐ฒ <95%, ๐ 100%. The monthly average card tracks your overall momentum with an animated progress bar.
Download your entire habit history โ habits, weights, and all check data โ as a timestamped JSON file. Import it back any time to restore or migrate between devices.
Want to start over? One-click Reset wipes everything from localStorage after a confirmation prompt. No data lingers, no account to delete, no emails to unsubscribe from.
Habit Ally has no backend, no API, no analytics, no cookies, and no third-party scripts. Your habit data is stored exclusively in your browser's localStorage โ it never leaves your device under any circumstances.
Your data never leaves your device. Habit Ally uses localStorage technology to keep your habit history 100% private and offline-capable โ no server ever receives your data.
We don't sell ads and there's nothing to share. Privacy isn't a policy page, it's the architecture.
About our storage model โDesigned for power users who prefer to keep their hands on the keyboard. Navigate your entire daily habit routine without touching the mouse for maximum speed.
All checkboxes and inputs are natively focusable and fully operable via keyboard navigation.
Keyboard shortcuts โDownload all your data as a timestamped JSON file at any time โ habits, weights, and the full check history. Import it back to restore or migrate to a different browser.
Your data is portable and human-readable. No lock-in, no proprietary formats, ever.
Data portability โOpen the app and start tracking. Six habits are pre-loaded so you can begin on day one. Add your own, remove ones you don't need, and customize to your routine.
No onboarding flow, no profile to fill in, no email confirmation. Just open and track.
See default habits โBrowse any past month with the โ โ navigation buttons. All data is scoped by month, year, and day โ so March 2025 and March 2026 are entirely separate records.
The current day is always highlighted in blue across the entire grid so you never lose your place.
How navigation works โHabit Ally has no paid tier, no premium features, no subscription nag screen. The full product is free because it doesn't cost anything to run โ there's no server.
The app has no ads and collects no data. Open source on GitHub for anyone to inspect or self-host.
View on GitHub โMost habit trackers require an account, sync your data to a server, and monetize through subscriptions or advertising. We wanted something different โ a tool that respects your data, works offline, and never asks you to log in.
Habit Ally is the result: a fully private, browser-based habit tracker that stores everything in localStorage. No backend, no cost to run, no incentive to monetize your habits.
Read the full story โTrack what matters, privately, every single day
"Finally a habit tracker that doesn't want my email address. The localStorage-only approach is exactly what privacy-conscious users have been waiting for."
"Love the simplicity. Monthly grid, daily scores, export to JSON. It does exactly what it needs to and nothing more. The weight tracker row is a nice touch."
"Been using this for three months. The emoji legend per day (๐ฑ๐ณ๐) is weirdly motivating. The export feature saved me when I switched browsers."
We believe your habit data is deeply personal โ it reflects your health, discipline, and daily life. That data should never be on anyone else's server, full stop.
Habit Ally is free because there's nothing to monetize. No users to retain, no data to sell, no subscription to renew. Just a tool that works for you.
Learn about our philosophyThe privacy-first approach is Habit Ally's biggest differentiator. By keeping all data in localStorage and skipping the backend entirely, it stays ahead of every privacy concern.
What started as a personal side project has become a go-to recommendation in productivity communities โ the vanguard of a movement that puts user data sovereignty first.
Because of its open-source codebase, transparent localStorage architecture, and zero tracking, Habit Ally could be the best alternative to subscription-based habit apps on the market.