Free tools for changing a habit
Simple, private tools that run in your browser — no sign-up, nothing stored on a server. Use them on their own, or as a first step before you try the Replacify app.
Bad Habit Cost Calculator
See what a habit costs you per week, month, year and 10 years — in money and in time.
Open tool →Habit Replacement Planner
Map your triggers and the need behind a habit, then get a personal if-then plan and a 7-day starter checklist.
Open tool →Urge Timer
Ride out a craving with a 1, 5 or 10-minute timer, a breathing guide and quick distraction ideas.
Open tool →Days Since I Quit Counter
Count the days since you quit, see the money and time you've saved, and download a milestone badge.
Open tool →
Frequently asked questions
Are these tools really free?
Yes. Every tool on this page is free to use, with no account and no sign-up.
Is my information stored anywhere?
No. The tools run entirely in your browser. The urge timer can keep a short history on your own device if you use it; you can clear it at any time.
Can I put a tool on my own website?
Yes. Each tool page has an "Embed this tool" box with a copy-and-paste snippet.
How do the tools relate to the Replacify app?
They're web versions of ideas the app is built around — seeing the cost, planning a replacement, getting through urges and tracking progress. The app adds step-by-step replacement paths, reminders and streaks.
Are these tools medical advice?
No. They're self-help tools for everyday habits. If a habit is affecting your health or you feel unable to cope, please talk to a doctor or a local support service.
Ready to swap it for something better?
Replacify gives you a step-by-step replacement path, an SOS button for when urges hit, and streaks that show your progress. Free to download.
