Open the right tool in one click.
Use the search box or scan the compact directory below to jump straight into finance, SEO, engineering, language, productivity, design, and electronics tools.
Loan, budget, investment, tax, and retirement tools.
Metadata, schema, slug, and content helpers.
Circuit calculators and formula helpers.
Direct tool access
Open any tool immediately. Related information and site links stay below this list.
CSS Border Radius Generator
Generate fancy CSS border-radius shapes.
Art & Design ToolsCSS Gradient Generator
Create beautiful CSS gradients with live preview.
Art & Design ToolsColor Palette Generator
Generate beautiful color palettes and harmonies.
Art & Design ToolsPlaceholder Image Generator
Generate placeholder images with custom sizes and text.
Art & Design ToolsTypography Scale Generator
Create harmonious typography scales for web projects.
Art & Design ToolsBreak-Even Analysis
Determine your break-even point and required sales volume.
Business ToolsInvoice Generator
Create professional invoices with your branding.
Business ToolsPercentage Calculator
Calculate percentages, percentage change, and proportions.
Business ToolsProfit Margin Calculator
Calculate gross, operating, and net profit margins.
Business ToolsVAT/Tax Calculator
Calculate VAT, sales tax, and final prices.
Business ToolsChinese Number Converter
Convert Arabic numbers into simplified Chinese numerals.
Chinese Language ToolsHanzi Counter
Count Chinese characters, punctuation, and Latin text in a passage.
Chinese Language ToolsPinyin Tone Remover
Strip tone marks and convert accented pinyin into plain text.
Chinese Language ToolsFrequency & Period Converter
Convert between frequency and period for signals and AC systems.
Engineering ToolsLED Resistor Calculator
Find the resistor value needed for an LED and estimate power dissipation.
Engineering ToolsNumber Base Converter
Convert between binary, decimal, hexadecimal, and octal.
Engineering ToolsOhm's Law Calculator
Calculate voltage, current, resistance, and power in circuits.
Engineering ToolsRC Time Constant Calculator
Compute tau, cutoff frequency, and charging percentage for RC circuits.
Engineering ToolsResistor Color Code
Decode resistor values from color bands.
Engineering ToolsScientific Calculator
Full-featured scientific calculator with advanced functions.
Engineering ToolsTrigonometry Calculator
Calculate sine, cosine, tangent, and inverse trig functions.
Engineering ToolsUnit Converter
Convert between metric, imperial, and other unit systems.
Engineering ToolsVoltage Divider Calculator
Calculate output voltage and resistor ratios for divider circuits.
Engineering ToolsBudget Planner
Plan your monthly budget with income, expenses, and savings goals.
Finance ToolsCompound Interest Calculator
Calculate compound interest with customizable rates and periods.
Finance ToolsCurrency Converter
Convert between major world currencies with real-time rates.
Finance ToolsDebt Payoff Calculator
Create a debt payoff plan using avalanche or snowball method.
Finance ToolsInvestment Return Calculator
Calculate ROI, annualized returns, and future investment value.
Finance ToolsLoan & Mortgage Calculator
Calculate monthly payments, total interest, and amortization schedules.
Finance ToolsRetirement Calculator
Plan your retirement savings and estimate your retirement income.
Finance ToolsAge Calculator
Calculate exact age in years, months, days, and more.
Health & Fitness ToolsBMI Calculator
Calculate Body Mass Index and check your weight category.
Health & Fitness ToolsCalorie Calculator
Calculate daily calorie needs based on activity level.
Health & Fitness ToolsDate Difference Calculator
Calculate the difference between two dates.
Health & Fitness ToolsJSON Formatter
Format, validate, and beautify JSON data.
Productivity ToolsLorem Ipsum Generator
Generate placeholder text for design and development.
Productivity ToolsPassword Generator
Generate secure, random passwords with custom requirements.
Productivity ToolsQR Code Generator
Generate QR codes for URLs, text, contact info, and more.
Productivity ToolsText Case Converter
Convert text between uppercase, lowercase, title case, and more.
Productivity ToolsWord & Character Counter
Count words, characters, sentences, and paragraphs in real-time.
Productivity ToolsCanonical URL Checker
Normalize URLs and generate canonical tag output.
SEO ToolsFAQ Schema Generator
Turn FAQ content into structured FAQPage schema.
SEO ToolsKeyword Density Analyzer
Analyze keyword usage and spotting over-optimization.
SEO ToolsKeyword Extractor
Extract the most repeated non-stop words from a page or article.
SEO ToolsMeta Description Checker
Review description length and generate a SERP preview.
SEO ToolsMeta Tag Generator
Create SEO-friendly title tags, descriptions, and canonical tags.
SEO ToolsOpen Graph Generator
Generate social sharing tags for Facebook, X, and LinkedIn.
SEO ToolsReading Time Calculator
Estimate reading time and word count for articles.
SEO ToolsRobots.txt Generator
Build a clean robots.txt file for your website.
SEO ToolsSchema Markup Generator
Generate JSON-LD structured data for common page types.
SEO ToolsTitle Tag Checker
Check title length and preview search-friendly headlines.
SEO ToolsURL Slug Generator
Convert titles into clean, shareable URL slugs.
SEO ToolsQuick links
Keep the extra links below the tool list so the tools stay first.
FAQ
How do I reach a tool quickly?
Use the search box or click a card in the direct tool list. Every card goes straight to the tool page.
Are the tools mobile-friendly?
Yes. The layout is compact, and result panels are tuned to stay usable on smaller screens.
Can I print an invoice?
Yes. The invoice generator includes a dedicated print page so you can preview and print the finished invoice cleanly.