Your first attempts will suck. So will your tenth. That's the point. See what happens at 100.
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Create an account later if you want to sync across devices.
THE PROBLEM
You need 100 reps to see what you're capable of.
The world's most popular coding challenge. Code for at least an hour every day for 100 days straight.
Transform your fitness one workout at a time. 100 sessions builds the habit that lasts a lifetime.
Build your writing habit and online presence. Your first posts won't be perfect, but by 100 you'll have found your voice.
HOW IT WORKS
Choose what you want to master. Whether it's making music, writing, coding, or fitness. Choose your format: track 100 iterations (reps) or commit to 100 consecutive days. Whatever works for your challenge.
Each time you complete a rep, mark it down. No need to track time, quality, or details. Just the act of doing it. The data shows you're making progress, even when it doesn't feel like it.
The chain method is simple: don't break the chain. Each day you log a rep, you extend your streak. Miss a day, and you start over. This psychological trick has helped millions build habits that stick.
Hitting 100 is hard. That's why we celebrate the journey. Unlock badges at 10, 25, 50, 75, and 100. Share your progress with friends and prove you can finish what you started.
FEATURES
No signup required. Start tracking your first goal in seconds. Your data saves locally. Create an account later when you're ready to sync across devices.
Visual streak calendar shows your consecutive days. Miss a day, start over. The fear of losing your streak keeps you showing up when motivation fades.
Browse 100+ challenges across coding, fitness, writing, music, and more. Pick one that fits your goals and start immediately. No time wasted deciding what to track.
Attach photos to each rep. See your progression from attempt 1 to attempt 100. Your first beat versus your hundredth. Proof that practice works.
Export all your logs as CSV anytime. Your data belongs to you. No lock-in, no ransom. Take your progress history wherever you go.
Hit a milestone? Share it. Auto-generated progress cards for Twitter, Instagram, and LinkedIn. Public accountability makes quitting harder.
USE CASES
Stop tutorial hell. Start shipping. After 100 projects, you won't need Stack Overflow for the basics.
One workout is motivation. 100 workouts is identity. You're not trying to get fit. You're becoming someone who works out.
Bad writers quit after 10 posts. Good writers push through 100. Your voice emerges through volume, not perfection.
Your 100th track will sound nothing like your first. That gap is your growth. Start stacking reps.
GET STARTED
Start tracking immediately. No signup required. Create an account later to save your progress.