Password maker
Generated on your device. Nothing leaves this page.
18
Free tools, no sign-up, no tracking
Do the thing.
Move on.
Twenty-five handy tools for everyday math, writing, color, code, and dates. Your three most-used are ready below — the rest are one search away. Everything runs in your browser, so your data never leaves the page.
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Your quick three
Ready without opening another page.
Quick calculator
0
Number generator
4821
crypto-random digits — PIN ready
Browse by category
Six jobs, twenty-five tools, one penguin per job.
Calculators
7 toolsEveryday math, answered fast.
Generators
5 toolsFresh randomness on demand.
Text Tools
3 toolsWords, counted and converted.
Color & Design
2 toolsPalettes and hex codes.
Developer Tools
4 toolsBits and bytes, formatted.
Date & Time
4 toolsDays, ages, and countdowns.
No match yet. Try a shorter search like “text,” “color,” or “date.”
Every tool, A to Z
The full shelf.
Age Calculator
Find your exact age in years, months, and days from any birth date.
Developer ToolsBase64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to readable text.
Developer ToolsBinary / Hex Converter
Convert between binary, octal, decimal, and hex live as you type.
CalculatorsBMI Calculator
Calculate your Body Mass Index from height and weight, with standard categories.
CalculatorsCalorie Calculator
Find your BMR and TDEE plus cut, maintain, and bulk calorie targets.
Text ToolsCase Converter
Switch text between UPPERCASE, lowercase, Title Case, and more.
Color & DesignColor Converter
Convert colors between HEX, RGB, and HSL with a live preview.
Color & DesignColor Palette Generator
Shuffle harmonious five-color palettes; copy any hex in one tap.
Date & TimeCountdown Timer
Count down to any date and time — launches, birthdays, deadlines.
GeneratorsDice Roller
Roll d4 through d100 — one die or a whole handful — total included.
CalculatorsGPA Calculator
Compute your GPA from courses, grades, and credit hours on the 4.0 scale.
Developer ToolsJSON Formatter
Pretty-print and validate JSON, or minify it for shipping.
CalculatorsLoan Calculator
Estimate your monthly payment from loan amount, APR, and term — plus total interest.
Text ToolsLorem Ipsum Generator
Generate classic placeholder text by paragraph, sentence, or word count.
GeneratorsPassword Generator
Create strong random passwords on your device. Nothing leaves the page.
CalculatorsPercentage Calculator
Work out X% of Y, percentage increase or decrease, and what percent one number is of another.
Date & TimePomodoro Timer
25-minute focus sessions with breaks, session counter, and a beep.
GeneratorsQR Code Generator
Turn any link or text into a scannable QR code and download it.
GeneratorsRandom Name Picker
Draw a random winner from your list — or shuffle the whole thing.
GeneratorsRandom Number Generator
Generate a random number with 1 to 10 digits — perfect for PIN codes and verification codes.
Date & TimeStopwatch
Millisecond-precise stopwatch with lap times, right in your browser.
CalculatorsTip Calculator
Tip amount, total bill, and per-person split — preset or custom rates.
CalculatorsUnit Converter
Convert length, weight, and temperature — metric to imperial and back.
Developer ToolsUUID Generator
Generate random UUID v4 identifiers — one, or a whole batch.
Text ToolsWord Counter
Count words, characters, sentences, and reading time as you type.
Questions, answered
The short version.
Are these tools really free?
Yes — all twenty-five tools are free, with no accounts, no sign-ups, and no usage limits. The site is supported by unobtrusive ads rather than paywalls, so you can calculate, convert, and generate to your heart's content.
Do you store what I type into the tools?
No. Every tool runs entirely in your browser using JavaScript on the page. Text you paste, passwords you generate, and numbers you calculate never leave your device and are never sent to a server.
Why is it called Penguin Wearing a Hat?
Because a penguin wearing a hat gets the job done and looks good doing it. Each tool category has its own penguin in its own hat — the accountant's visor handles your math, the wizard conjures your passwords, and so on. Do the thing, move on.
Do the tools work on my phone?
Yes. Every page is built mobile-first and works the same on phones, tablets, and desktops, in both light and dark mode. Your theme choice is remembered on your device.
How accurate are the calculators?
The math is exact for what each tool claims to do — percentages, loan amortization, BMI, date differences, and encodings are computed with standard formulas. Loan results are estimates: fees, taxes, and lender terms can change a real payment, so always confirm with your lender.
Can I suggest a new tool?
New tools are added regularly based on what people actually search for. The guiding rule is simple: if it's a small job a page can do in seconds, it belongs here.