MyNiftyToolbox
All tools.
Every tool in the collection, in one place. New ones show up here as soon as they ship.
Brand Guidelines Generator
Build a living style guide: logos, color, type, spacing
Color Palette Generator
Shuffle, lock, and save color palettes
Color Palette Visualizer
Preview palettes on real layouts
CSS Gradient Generator
Build linear, radial, and mesh gradients — copy the CSS instantly
Loan & Mortgage Calculator
Monthly payment, amortization schedule, and payoff chart
NewAuto Loan Calculator
Monthly car payment with trade-in, down payment, and sales tax
NewMulti-Loan Payoff Calculator
Combine several loans into one payoff timeline
NewDebt Payoff Calculator
Snowball vs. avalanche, payoff date, and interest saved
NewBudget Calculator
50/30/20 budget planner with a spending breakdown
NewPaycheck Allocator
Split one paycheck across bills, debt, savings, and investing
NewIncome Allocator
Combine multiple income sources into one allocation plan
NewBMI Calculator
Body mass index with a healthy-range gauge
NewReal Estate Deal Calculator
Cash flow, cap rate, and cash-on-cash return for a rental deal
NewStudent Loan Payoff Calculator
Federal and private loans together, with a combined payoff date
Calculator
A fast, no-nonsense everyday calculator
NewAge Calculator
Exact age in years, months, and days between two dates
NewTip Calculator
Split the bill and tip fairly, any number of ways
NewGPA Calculator
Weighted or unweighted GPA from your course grades
NewColor Contrast Checker
WCAG AA/AAA contrast ratio for any two colors
Pomodoro Timer
Focused work sprints with automatic short and long breaks
NewJSON Formatter & Validator
Pretty-print, minify, and validate JSON with error location
NewRegex Tester
Test regular expressions live with highlighted matches
NewWord Counter
Words, characters, sentences, and reading time as you type
NewCase Converter
UPPER, lower, Title, Sentence, camelCase, snake_case, and more
NewPassword Generator
Strong random passwords with a live strength meter
NewUUID Generator
Generate v4 UUIDs in bulk, ready to copy
NewUnit Converter
Length, weight, temperature, and volume, converted instantly
NewUnix Timestamp Converter
Convert Unix time to a human date and back, in any timezone
NewPercentage Calculator
X% of Y, what % X is of Y, and percent change
NewCompound Interest Calculator
Investment growth over time, with contributions and a chart
NewRetirement & 401(k) Calculator
Project savings growth with employer match and raises
NewRent vs. Buy Calculator
Which costs less over time, buying or renting and investing
NewBox Shadow & Glassmorphism Generator
Design layered shadows and frosted-glass effects visually
Take-Home Pay Estimator
Federal tax, Social Security, and Medicare, estimated
California Paycheck Calculator
Take-home pay after federal, California state tax, and FICA
Texas Paycheck Calculator
Take-home pay after federal tax and FICA — no state tax
New York Paycheck Calculator
Take-home pay after federal, New York state tax, and FICA
Florida Paycheck Calculator
Take-home pay after federal tax and FICA — no state tax
NewFont System Visualizer
Pair Google Fonts and preview a type scale on real layouts
Self-Employment Tax Calculator
Estimate SE tax, income tax, and quarterly payments on 1099 income
NewNet Worth Tracker
Total your assets and liabilities into one net worth snapshot
NewSavings Goal Calculator
How long to reach a savings goal, or how much to save monthly
NewFluid Type Calculator
Generate a CSS clamp() font size that scales with viewport width
Markdown Previewer
Live Markdown to HTML preview, side by side
NewQR Code Generator
Turn a URL or short text into a scannable QR code, styled and downloadable
NewInvoice Generator
Create and print a professional invoice — no account, no watermark
Illinois Paycheck Calculator
Take-home pay after federal, Illinois flat state tax, and FICA