AppVitamins

AppVitamins — 103 free web tools, games and on-device AI appsNew book: The GLP-1 Decision & Beyond by Tim Munnik. A book on the GLP-1 medicines (Ozempic, Wegovy, Mounjaro, Zepbound): what is known, what is not known, and where the choice lives. Informational. Not medical advice.Every app below runs in your browser. No signup, and the AI apps process your data entirely on your own device — nothing is uploaded. This list is the full directory; the interactive launchpad needs JavaScript.Store — Pro unlocks, templates and books · About AppVitamins · Contact · Privacy policy & termsGames

BoardHall — 8 classic board games vs AI — chess to backgammon, 3 levels

Bow Hunter 3D — 3D archery hunting — wind, arc and slow-mo arrow cam

Drift Royale 3D — Low-poly 3D drift & deliver arcade — daily seeds

Drone Command — Bunker-console drone ops — scan, designate, strike from above

Higher or Lower: Data Duel — Daily data duel across 11 categories — populations, animal speeds, mountains, calories, planets

Idle Empire — Build a floating trade empire — earns while you're away, ascend for permanent bonuses

JigsawJoy — Relaxing picture jigsaws — 500+ photos, magnetic snap, pinch-zoom, made for phone & iPad

Mapdle — Daily country-guessing puzzle — keep your streak

MergeMelon — Addictive suika-style fruit merge physics game

Nova Pinball — Free browser pinball with real flipper physics — 4 themed tables, missions, multiball.

Sudoku Daily — A fresh unique-solution puzzle every day — 4 difficulties, streaks

Tank Strike 3D — Wave-based 3D tank combat with first-person scope targeting

Typing Speed Test — Your real WPM & accuracy — 15/30/60s, quotes, personal bests

Word Connect — Daily word-grouping puzzle — find the 4 hidden groups, share your grid

AI Image Upscaler — Enlarge photos 2× free or 4× with on-device AI — no upload, no watermark

AI Page Designer — Describe a web section → AI writes clean HTML, in your browser

Background Remover — Erase image backgrounds on-device — transparent PNG, no upload

EchoScribe — Private voice-to-text — Whisper runs 100% in your browser, no upload

Image Describer — AI alt-text & captions for any image — accessibility + SEO

Object Spotter — AI finds & labels objects in a photo, on your device

Offline Translator — 14-language AI translation that runs on your device, offline

Paste & Ask — Ask questions about any text — on-device semantic AI search

PocketLLM — A private AI chat that runs entirely in your browser via WebGPU

Read Aloud — Private text-to-speech — hear any text, generated on your device

Summarize It — Shrink long text to a summary, privately on your device

Education

Algebra Trainer — Linear-equation solver with step-by-step working + endless practice

Fractions Lab — Visual fractions — bars, circles, add/subtract, equivalents & practice

Periodic Table Explorer — Interactive periodic table — element data, filters & a quiz mode

Phonics Play — Letter sounds, CVC blending & sight words with read-aloud audio

Recall — Spaced Repetition Flashcards — FSRS-scheduled flashcards: 6 ready decks, make your own, see exactly when each card returns

Spelling Bee Builder — Read-aloud spelling practice with graded word lists & scoring

Test Prep Trainer — SAT/ACT-style vocab & math practice with timed sets & explanations

Times Tables Trainer — Timed multiplication drills 1–12 with levels, streaks & saved progress

World Geography Quiz — Capitals, flags & countries quiz with regions, streaks & scoring

Finance

CalcSmith — Instructional-grade home loan & money calculators

CoastFIRE Simulator — Coast/Barista FIRE with Monte Carlo fan charts

CoverageCalc — Life insurance needs via the DIME method

DebtFreePath — Avalanche vs snowball payoff planner — see your debt-free date

LLC Cost Calculator — Real cost to start & keep an LLC in any state — 50-state fees

PaycheckPilot 2026 — All-50-states take-home pay calculator

Refinance & HELOC — Should you refinance? Break-even + home-equity borrowing power

RentVsBuy 2026 — Rent vs buy with opportunity-cost math

Student Loan Estimator — Payoff & forgiveness — compare repayment plans, see your debt-free date

Health

GLP-1 Companion — Protein, hydration & dose-week calculators for GLP-1 users

GLP-1 Journey Companion — Doses, daily check-ins, symptoms, weight & appointment reports — all on your device

GLP-1 Workbook Builder — Build a 25-sheet Excel/Google Sheets GLP-1 tracker — formulas, heatmaps, reports

Health Subsidy Estimator — Estimate your 2026 ACA premium tax credit + Medicare overview

Healthy Gut — DIY microbiome sprinkle, 30-plant tracker & fermented-foods planner

LongevIQ — Estimate your fitness age, VO2 max & longevity score

MacroLite — Adaptive macro & weight tracking — the smart TDEE loop, free

Pregnancy Due Date — Due date + week-by-week milestones (LMP, conception, IVF)

Smart Books

Byte's Shape Parade — Honeydew Hollow Smart Book — Narrated, interactive Honeydew Hollow picture book — first pages free

Counting Critters — Honeydew Hollow Smart Book — A narrated, tap-to-count picture book for ages 3-6 with read-along words and four character voices

Cress and the Wiggly Tadpoles — Honeydew Hollow Smart Book — Narrated, interactive Honeydew Hollow picture book — first pages free

Honeydew Hollow — Smart Book Series — Mia and her animal friends in narrated, interactive picture books — first pages free, whole series US$ 29.00

Robin's Rainbow Hunt — Honeydew Hollow Smart Book — Narrated, interactive Honeydew Hollow picture book — first pages free

Smart Books Library — Narrated, interactive picture books — browse by age, first pages of every book free

Tansy's Topsy-Turvy Day — Honeydew Hollow Smart Book — Narrated, interactive Honeydew Hollow picture book — first pages free

Thistle's Fair-Share Picnic — Honeydew Hollow Smart Book — Narrated, interactive Honeydew Hollow picture book — first pages free

Tools

Age & Date Calculator — Exact age, date differences, add/subtract dates, next birthday

OCR Scan — Image to Text — Photos, screenshots and scans to editable text in 100+ languages — nothing uploaded

Password Generator — Strong passwords & passphrases + strength meter — 100% in your browser

PDFLocal — Merge, split, compress PDFs — 100% in your browser

QR Code Generator — URL, WiFi, vCard, email QR codes — download PNG/SVG, your colors

SqueezeIMG — Batch image compression & WebP/AVIF, no upload

Unit + Currency Converter — Length, mass, temp, volume, data, speed + currency — 8 categories

Video Trim & Compress — Trim, compress, crop and combine MP4/MOV/WebM in your browser — no upload, no watermark

Recipes

Carnivore Diet Kitchen Recipes — 50+ original carnivore recipes — all-meat, eggs & animal-fat cooking

Ketogenic Diet Low Protein Kitchen Recipes — 50+ original low-protein ketogenic recipes, meal plans & macro tools

Lion Diet Kitchen Recipes — 40+ strict Lion Diet recipes — ruminant meat, salt & water elimination protocol

LowCarb Diet Kitchen Recipes — 40+ original low-carb recipes, meal plans and carb tools

Mediterranean Diet Kitchen Recipes — 55+ Mediterranean recipes — olive oil, seafood, vegetables, legumes & whole grains

Vegan Diet Kitchen Recipes — 55+ original vegan recipes — 100% plant-based, no animal products

Vegetarian Diet Kitchen Recipes — 55+ original lacto-ovo vegetarian recipes — no meat or fish, dairy & eggs welcome

Energy & Home

Auto TCO: EV vs Gas — 5-year true cost of ownership — loan, fuel/charging, maintenance, depreciation

SolarPayback — Per-state solar ROI & breakeven calculator

SwitchSmart — Heat pump vs gas furnace — running cost & payback with the 2026 tax credit

WattWise — What 40+ appliances really cost to run

Travel

ClaimCheck — Flight delayed? Check your compensation rights

Cost-of-Living Compare — What you need to earn in a new city to keep your lifestyle — 44 cities

PointsWorth — Are your points worth it? Cents-per-point checker

Tip Calculator — Split the bill, tip right, and a global tipping-norms guide

Freelance

InvoiceForge — No-signup invoices with instant PDF export

Quote & Invoice Studio — Generic quote & invoice maker — logo, line items, PDF, history

RateRight — Freelance reverse rate solver — hit your take-home after 1099 taxes

Music

Music Maker — In-browser beat & synth studio — drums, bass, pads, WAV export

Sheet Music Teacher — Note-reading & sight-reading trainer with sound, treble & bass

Singing Coach — Real-time vocal pitch & tuner trainer — sing in tune, in your browser

Books

BookBay — Buy & read ebooks, smart books and spreadsheets — register, purchase, unlock

Smart Book Reader — Read-along voice + word highlighting, plus 2-host 'discuss' mode & kids books

Creators

Creator Studio — Captions, hashtags, hooks and script outlines — on-device AI, plus a template mode that needs no AI

CreatorScale — What should you charge? Sponsorship rate + ad-revenue estimator

Spreadsheets

Smart Budget — Live 12-month cash-flow planner with scenarios + real .xlsx export

Spreadsheet Studio — 10 intelligent spreadsheets — budget, debt, net worth, rental, wedding & more, with real .xlsx export

AI & Dev

TokenTally — Compare LLM API costs across 30+ models

Budget

SubZero Audit — Audit 250+ subscriptions — see your shock total

Career

ResumeRadar — Private in-browser ATS resume checker — nothing uploaded

Emulators

Retro Emulator Arcade — Play retro games free & legally — NES, SNES, Genesis, C64, arcade & more (homebrew + your own ROMs)

Investing

StockLab — Institutional-grade stock analysis trainer — quant + qualitative

Mental Health & Psychology

MindHarbor — A private AI mental-health chat that runs 100% on your device — free CBT playbook, zero data ever leaves your browser.

Pets

PawBudget — Lifetime pet cost by breed size & state

Productivity

Habit Streak Tracker — Daily habits, streaks, a 12-week heatmap and reminders — private, offline, installable

Wellness

SleepShift — Sleep-cycle bedtimes, chronotype quiz, jet lag shifter