Every Free Tool
& Guide. In One Place.

How blockchain works, with live chain demo.

Mining, halving and the 21M cap.

Smart contracts, ETH and gas fees.

Lending, DEXes and yield, explained.

Self-executing agreements explained.

Digital ownership, minting and buying.

20+ coins to 30 fiat currencies, live.

BTC amounts to 30 currencies.

Hash text and files instantly.

Profitability, energy and break-even.

Range, charging and costs, interactive.

Levels, connectors and charging cost.

The honest cost & CO₂ comparison.

Range, chemistry and degradation.

Budget, rebates and checklist.

Petrol, diesel and EV running costs.

Compare two cars, all costs.

Resale value year by year.

Payments and amortization table.

Which is cheaper for you.

km↔miles, L/100km↔MPG, PSI↔kPa.

Compare tires and speedometer error.

Comparison with an interactive finder.

Decode P, B, C & U codes in seconds.

How to choose the right scanner.

Savings, payback and 25-year ROI.

Size storage, inverter and recharge.

Roof area and how many panels fit.

Potential by country and best brands.

Payments, amortization, affordability.

How many cans for each room.

Tiles, waste and cost.

Budget by room and by work type.

m²↔ft² and price per square meter.

Closing costs, down payment & PMI.

How much house can you afford?

Daily calories and macro split.

Fat burn, cardio and peak zones.

Savings, 4% rule and income gap.

Federal, FICA and take-home pay.

Time to reach any goal.

What your raise is really worth.

Annual ↔ hourly ↔ monthly.

Split income into needs, wants, savings.

Budget any trip in seconds.

CO₂ of your flights, compared.

Time, arrival and pace by mode.

Time difference and recovery days.

Interactive checklist with presets.

Does your bag fit the plane?

Average rates 2026 + savings calculator.

Your payoff date and interest, live.

Monthly vs annual — the real price gap.

Premiums, deductibles & IRMAA by income.

By process: amicable, mediated, litigated.

Builder, template or custom — full budget.

Alarm, cameras & monitoring pricing.

Public vs private, total cost & aid.

LASIK, Invisalign, implants & surgery.

How much to ask + raise calculator.

How much brokers really charge.

Project your savings growth.

HYSA vs regular savings rates.

Term premiums by age & coverage.

Payment, interest & total cost.

What every deduction saves you.

Real profit per sale by platform.

Your IP, location & ISP instantly.

Locate any IP address.

Detect browser, OS & device.

A, AAAA, MX, NS, TXT & CNAME.

Domain owner, dates & status.

Is a port open? Test any host.

Certificate validity & expiry.

Response headers & status.

Latency to any host.

Is a site up right now?

Download, upload, ping & jitter live.

Random ints in any range.

Spin the wheel, pick a winner.

Heads or tails, animated.

Remove accents & diacritics.

Entropy & time to crack.

Live time in major cities.

Timer with laps, offline.

d4, d6, d8, d10, d12 & d20.

Custom random wheel picker.

Timer with alarm.

Focus 25/5 productivity.

Yes/no answers, fun.

Powerball, Euromillions & more.

Random date in any range.

Random HEX & RGB colors.