← All health kits

Ch

Children's Health

Built around the questions parents actually google in the middle of the night — how much Tylenol can I give my kid, how do I size a portion for a toddler, how much sleep should a 4-year-old be getting. Conservative defaults, big disclaimers where they need to be, and zero data leaving the device. Always confirm anything dosing-related with your pediatrician — especially under 2 years old.

13 tools · 6 sections

Your data stays on your device. Every tool in this kit saves entries to this browser's local storage only — no account, no upload, no analytics on the data itself. Export a CSV to take it with you, or clear everything in one click.

Medication

1 tools

Acetaminophen + ibuprofen by weight. Per-dose range, not a single number. Always confirm with a pediatrician.

Kids Medication Dosage

Acetaminophen, Ibuprofen, Benadryl, Zyrtec, and Claritin dosing for children. Per-dose range plus 'next dose at' timer. Hard cutoffs for under-3-month / under-6-month / under-6-year + a permanent disclaimer.

Body baselines

2 tools

BMI for the older kid, basic growth math.

Calculate your Body Mass Index with visual results and tracking.

Ideal Weight Calculator

Calculate ideal body weight using 4 medical formulas. Compare with healthy BMI range.

Nutrition + hydration

3 tools

Calorie ballpark, water intake, caffeine awareness for older kids.

Calorie Calculator

Calculate daily calorie needs based on your goals and activity.

Water Intake Calculator

Find out how much water you should drink daily.

Caffeine Half-Life Calculator

Track caffeine levels through the day. See when it will affect your sleep.

Sleep

1 tools

When to start the wind-down so the alarm catches a full sleep cycle.

Sleep Cycle Calculator

Calculate the best time to wake up or go to bed based on 90-minute sleep cycles.

Time + routine

3 tools

Quiet-time timers, age math.

Countdown Timer

Set a countdown timer with custom duration.

Precise stopwatch with lap tracking.

Calculate your exact age in years, months, days, and more.

For homework

3 tools

Reading-level checker and AI explainers for grade-school questions.

Reading Level Analyzer

Check the reading difficulty and grade level of any text.

Explain Like I'm 5

Simplify complex text to any reading level using AI.

Summarize any text into key points using AI.

Trackers, not diagnostic tools. For anything concerning, talk to a clinician. Browse all 240 tools.

Built browser-first. Run by one developer.

Every tool runs on your device. No tracking pixels, no sign-up to start. The numbers below are pulled live from the registry.

240

Free tools

Across 14 categories

7

Visual editors

PDF · image · video · audio

32

Curated kits

By profession + lifestyle

17

AI tools

Powered by Claude API

Files never uploadNo tracking pixelsNo sign-up neededWorks in any modern browser

The handful of AI tools (paraphrase, summarise, blog, captions, etc.) send your prompt text to Anthropic's Claude API to do the work. Files, images, PDFs and video never leave your device. Pick the tools that fit your privacy comfort.