A curated collection of 6,837 free browser-based tools across 137 live hubs — no signup, no downloads, 100% private. Everything runs client-side; your data never leaves your device.
tool.teamzlab.com — Built by Teamz Lab
- Finance & Money
- Developer Tools
- Health & Wellness
- Beauty & Skincare
- AI-Powered Tools
- Design & Images
- Home & Housing
- Career & Resume
- Math & Science
- Gaming
- Privacy & Security
- Food & Drink
- Kids & Education
- Country-Specific Tools
- Articles & Guides
- 50/30/20 Budget Calculator — Split income into needs, wants, and savings
- Compound Interest Calculator — See how your money grows over time
- Debt Snowball vs Avalanche — Compare debt payoff strategies
- FIRE Calculator — Find out when you can retire early
- Mortgage Calculator — Monthly payment, amortization, total interest
- Rent vs Buy Calculator — Honest comparison including opportunity cost
- Investment Return Calculator — Project portfolio growth
- Credit Card Payoff Calculator — Payoff timeline and total interest
- Net Worth Calculator — Track assets minus liabilities
- Side Hustle Profit Calculator — Real hourly rate after expenses
Browse all 232 finance tools →
- JSON Formatter — Beautify, validate, and explore JSON
- JWT Decoder — Decode JWT tokens instantly
- Regex Tester — Real-time regex matching with capture groups
- Cron Expression Generator — Build cron schedules visually
- CSS Gradient Generator — Design gradients, copy CSS
- Docker Run to Compose — Convert docker run to docker-compose.yml
- Base64 Encode/Decode — Encode and decode Base64
- UUID Generator — Generate v4 UUIDs in bulk
- Subnet Calculator — CIDR, network ranges, host counts
Browse all 72 developer tools →
- TDEE Calculator — Total Daily Energy Expenditure
- BMI Calculator — Body Mass Index with health category
- Macro Calculator — Protein, carbs, fat split
- Sleep Calculator — Optimal bedtime based on sleep cycles
- Burnout Test — Clinical-grade burnout assessment
- Reaction Time Test — Measure reflexes in milliseconds
- Body Fat Calculator — Estimate from measurements
- Phone Addiction Test — Screen time assessment
- Ingredient Checker — Flag irritants, comedogenic ingredients, fragrance, and pregnancy-unsafe actives
- Product Expiry Tracker — Track PAO dates and know what to use up first
- SPF Calculator — Estimate the SPF level you need by skin tone and UV exposure
- Sunscreen Reapply Timer — Time your next sunscreen reapplication by activity
- Skin Type Quiz — Get a simple skincare starting point based on your skin profile
Browse all 11 skincare tools →
- Grammar Checker — Fix grammar, spelling, punctuation in browser
- Article Summarizer — TL;DR any article into bullet points
- Resume Summary Generator — Professional summary from experience
- Cover Letter Helper — Generate tailored cover letters
- Headline Generator — Click-worthy headlines with AI
- Background Remover — Remove backgrounds with AI, in-browser
- Image Compressor — Compress without quality loss
- Favicon Generator — All sizes from any image, ICO included
- Photo to Pencil Sketch — Convert photos to sketch art
- Color Palette Extractor — Extract dominant colors with hex codes
- Meme Maker — Classic meme generator
- Kitchen Remodel Calculator — Cabinets, counters, appliances breakdown
- Bathroom Remodel Calculator — Tile, vanity, plumbing estimates
- Paint Calculator — Exact gallons needed for any room
- Solar Panel Calculator — Payback period, savings, ROI
- Electricity Cost Calculator — Cost per appliance per day/month/year
- Roommate Split Calculator — Fair rent split by room features
Browse all 29+ housing tools →
- ATS Resume Checker — Check if your resume passes ATS filters
- Resume Keyword Scanner — Match resume keywords to job descriptions
- LinkedIn Summary Generator — Professional LinkedIn About section
- Salary Negotiation Script Generator — Generate negotiation scripts in multiple tones and currencies
- Offer Comparison Calculator — Compare job offers with total compensation
- Scientific Calculator — Full scientific calculator with history
- Graph Plotter — Plot any equation with zoom and pan
- Matrix Calculator — Operations up to 10x10 matrices
- Standard Deviation Calculator — Mean, median, variance
- Click Speed Test — Measure CPS (clicks per second)
- Keyboard Tester — Visual key registration test
- DPI Calculator — Effective DPI and sensitivity converter
- PC Bottleneck Calculator — CPU vs GPU bottleneck analysis
- Password Strength Checker — Crack time estimation, runs locally
- DNS Leak Test — Check if your VPN is leaking
- Browser Fingerprint Checker — See how trackable you are
- WebRTC Leak Checker — Detect IP leaks through WebRTC
Browse all 39 diagnostic tools →
- Coffee-to-Water Ratio — Perfect ratio for any brew method
- Recipe Scaler — Scale recipes up or down
- Sourdough Hydration — Baker's percentages
- Caffeine Half-Life — Caffeine remaining at bedtime
- Times Table Quiz — Timed multiplication practice
- Typing Speed Test for Kids — Kid-friendly WPM test
- Reading Level Test — Reading comprehension assessment
- Math Word Problem Generator — Grade-appropriate problems
| Country | Tools | Link |
|---|---|---|
| 🇺🇸 United States | 931 | tax, finance, military |
| 🇬🇧 United Kingdom | 118 | tax, MTD, leave, childcare |
| 🇩🇪 Germany | 92 | Brutto-Netto, Grundsteuer, Elterngeld |
| 🇫🇷 France | 69 | APL, Prime d'activité, CROUS |
| 🇧🇪 Belgium | 27 | bruto-netto, registratierechten, erfbelasting |
| 🇱🇺 Luxembourg | 63 | Gehaltsrechner, Steuer, Grenzgänger |
| 🇵🇱 Poland | 11 | wynagrodzenia, kredyt, PIT |
| 🇨🇿 Czech Republic | 12 | mzdy, hypotéky, daně |
| 🇯🇵 Japan | 54 | Tedori, Furusato Nozei, housing loan |
| 🇸🇬 Singapore | 109 | TDSR, HDB, CPF, SPL |
| 🇳🇿 New Zealand | 106 | KiwiSaver, PAYE, mortgage |
| 🇦🇪 UAE | 25 | gratuity, Salik, visa fines |
| 🇧🇩 Bangladesh | 38 | bKash, Nagad, tax, CGPA |
| 🇦🇺 Australia | 113 | HECS, super, MLS, CGT |
| 🇨🇦 Canada | 71 | TFSA, RRSP, EI, CCB |
| 🇮🇳 India | 26 | GST, EMI, PPF, SIP |
| 🇪🇸 Spain | 45 | hipoteca, finiquito, nómina |
| 🇵🇹 Portugal | 45 | CLT vs PJ, empréstimo, IMC |
| 🇳🇱 Netherlands | 44 | 30%-ruling, hypotheek, loon |
| 🇫🇮 Finland | 32 | verolaskuri, asumistuki, eläke |
| 🇸🇪 Sweden | 75 | skatt, pension, bolån |
| 🇳🇴 Norway | 76 | skatt, boliglån, feriepenger |
| 🇮🇹 Italy | 27 | stipendio, mutuo, TFR |
View all 6,837 tools organized by category → TOOLS.md
Every tool with a direct link — searchable, browsable, and all dofollow.
- No signup, no email — open and use immediately
- No downloads — runs entirely in your browser
- 100% private — your data never leaves your device (client-side JavaScript)
- No paywall — everything is free, forever
- Works offline — many tools work without internet after first load
- Mobile friendly — responsive design for all screen sizes
- AI-discoverable — indexed via llms.txt for ChatGPT, Perplexity, Claude
- Static site — hosted on GitHub Pages, no backend
- Open standards — JSON-LD schemas, sitemap, RSS
Found a bug? Have a tool suggestion? Open a discussion.
Tools are free to use. Content is copyright Teamz Lab.