Free online tools
for everyday life
Calculators, generators, and converters for money, home, health, and everyday decisions. No accounts, no signups, no paywalls — and most tools run entirely in your browser.
Sleep & Wellness Tools
Build a bedtime routine that works — timing, caffeine, naps, and recovery. Seven tools that work in sequence, and a guide that shows which one to use first.
Sleep Calculator
Best bedtime or wake-up time from 90-minute sleep cycles.Caffeine Cutoff Calculator
Latest safe coffee time before bed, from caffeine half-life.Nap Calculator
Plan a 20/40/90-minute nap with the ideal wake-up time.Sleep Debt Calculator
Measure accumulated sleep debt and get a recovery plan.Weighted Blanket Calculator
Your ideal blanket weight using the 10% rule.Chronotype Test
Lark or night owl? 6 questions to find your body clock.Sleep Quality Check
Score your sleep across 7 dimensions in 2 minutes.Explore by theme
Nine more themes, 53 tools. Each theme is a hub — a guide that explains the topic plus the tools that go with it.
Follow your money from paycheck to mortgage, debt, and savings.
Explore the Money guide →Wheels, dice, raffles, and generators for a fair random pick.
Explore the Fun guide →Track weight, calories, and macros against a goal you can actually hit.
Explore the Body guide →Budget a remodel room by room and see what each project adds back.
Explore the Renovation guide →Everyday health numbers: hydration, hair growth, and blood alcohol.
Explore the Health guide →Timers and plans for deep work, workouts, and exam countdowns.
Explore the Focus guide →What solar, HVAC, roofing, and appliances really cost to run.
Explore the Home Energy guide →Why people use BriskDeck
Privacy first
No accounts, no email collection, no signup. Nearly every tool runs entirely in your browser — the one tool that saves your content (the persona page) says so on its own page.
Data-backed estimates
Every number is based on real-world data from government agencies, industry associations, and verified research — not guesses.
Always free, forever
No paywalls, no trial limits, no credit card required. Just useful tools that work — and always will.