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Finance Tools
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Mortgage Payment Calculator
Inputs for principal; interest; term; interactive amortization graph.
Car Loan Amortization Calculator
Monthly payment breakdown; interest vs principal tracking.
Credit Card Payoff Tracker
Debt avalanche/snowball toggles; estimated payoff date.
Simple vs Compound Interest Calculator
Side-by-side growth comparison; compounding frequency selection.
Student Loan Refinance Calculator
Visual chart showing total savings before vs after refinancing.
Freelance Hourly Rate Calculator
Expense input fields; billable hours input; desired net salary.
Self-Employment Tax Estimator
Standard deduction adjustments; 1099 income input fields.
VAT / Sales Tax Calculator
Reverse VAT calculation; multi-country tax rate selection.
Crypto Profit/Loss Calculator
Real-time token price fetching; buy/sell fee adjustments.
Foreign Exchange Currency Converter
Live rate chart; multi-currency conversion grid; historical data.
Break-Even Analysis Calculator
Fixed cost inputs; variable cost inputs; unit price sliders.
Profit Margin & Markup Calculator
Cost price input; selling price input; profit margin yield.
Inventory Turnover Ratio Calculator
Beginning inventory input; ending inventory input; COGS fields.
Net Worth Calculator
Asset tracking categories; liability entry fields; net worth history.
Fire Calculator
Safe withdrawal rate inputs; inflation assumptions; savings rate.
Salary to Hourly Converter
Weeks worked per year input; hours per week input; tax adjustment.
Dividend Reinvestment Calculator
Stock ticker input; annual dividend yield; reinvestment toggle.
Real Estate ROI / Cap Rate Calculator
Cash flow tracking; mortgage costs; maintenance reserve inputs.
Cost per Click & CTR Calculator
Total clicks; total impressions; ad spend metrics inputs.
Tip & Bill Splitter
Bill total; tip percentage slider; number of guests input.
CAGR Calculator
Initial investment value; final value; number of years input.
JSON Validator & Linter
Error line highlighting; inline code fix buttons; RFC standards.
RegEx Tester & Visualizer
Match highlighting; substitution engine panels; cheat sheet panels.
YAML to JSON Converter
Inline data viewing switches; conversion schema tracking nodes.
CSS Box Shadow Generator
Layer stacking interfaces; inset toggle switches; blur radius sliders.
HEX to RGB / RGBA Converter
Hex string checkers; alpha value opacity sliders; copy shortcuts.
Tailwind CSS Class Finder / Cheat Sheet
Responsive prefix toggling; utility filters; copy-on-click interfaces.
CSS Triangle Generator
Direction arrow selectors; width/height sliders; color options.
HTML Table Generator
Row/column adding links; striped row toggles; responsive CSS options.
Alphabetical Text Sorter
A-Z vs Z-A toggles; numerical sorting options; delimiter selectors.
Remove Duplicate Lines Tool
Case sensitivity configurations; sorting combinations; empty line removal.
Strip HTML Tags from Text
Selective tag exclusion inputs; attribute clearing controls; line trim.
JPG to PNG Converter
Alpha transparency injection controls; bit depth configurations arrays.
WebP to JPG Converter
Background padding color wheels; quality metrics slider interfaces.
SVG to PNG High-Res Exporter
Custom scale multipliers; transparency toggles; output size fields.
PDF Merger
File order sorting drag links; blank page insertion triggers; meta tools.
Watermark Inserter
Opacity control sliders; rotation angle trackers; font style arrays.
EPUB to PDF Converter
Font size override options; margin specifications; page numbering flags.
Barcode Generator
UPC; EAN; Code128 format dropdowns; margin sizing specs; downloads.
Decimal to Fraction Converter
Max denominator constraint inputs; mixed number option checkboxes; flows.
Scientific Calculator
Trigonometry modes; logarithmic options; equation storage variables memory.
Matrix Multiplication Calculator
Dimension scaling selectors; raw element grids; step-by-step workflows.
Prime Number Checker & Generator
Range boundary input fields; list generation limits; speed duration reports.
Greatest Common Divisor & LCM Calculator
Comma-separated entry buffers; clear step execution charts; result panels.
Fibonacci Sequence Generator
N-th term value targets; sequence range outputs; calculation speed tracking.
Fuel Efficiency Converter
A free, fast, browser-based fuel efficiency converter.
Roman Numerals Converter
A free, fast, browser-based roman numerals converter.
Date Duration Calculator
A free, fast, browser-based date duration calculator.
BMR Calculator
A free, fast, browser-based bmr calculator.
Random Number Generator
A free, fast, browser-based random number generator.
Port Scanner
A free, fast, browser-based port scanner.
Signature Pad
A free, fast, browser-based signature pad.
List Randomizer / Shuffler
A free, fast, browser-based list randomizer / shuffler.
T-Shirt Design Mockup Previewer
Apparel color selector wheels; graphic placement sizing handles; downloads.
JSON to XML Converter
Root tag naming parameter fields; XML indentation spaces scale dropdowns.
CSV to XML Converter
Row tracking element nomenclature inputs; file stream buffer interfaces.
XML Formatter
Indentation space count inputs; attribute wrapping layout toggle states.
BBCode to HTML Converter
Custom tag definition maps; live preview layout split windows; code copy.
Markdown Live Previewer
Synchronized scrolling panels; theme styling selector bars; HTML views.
HTML to Markdown Converter
Link formatting settings; table style configuration selectors; raw views.
Hashing Salt Generator
Salt length configuration selectors; character set checkboxes; bulk generation.
Checksum Validator
Official hash entry match boxes; real-time checking tickers; match alerts.