Web Color Palette Generator
Build a harmonious, role-based color system and preview it on a real interface.
Open toolTools catalog
Find a clear answer.
Browse published tools by category or search the available collection.
SEO Traffic & Revenue Simulator
Explore how organic position, CTR, conversion rate, and order value shape an SEO traffic and revenue scenario.
Open toolSupply & Demand Simulator
Explore supply, demand, equilibrium, market shifts, elasticity, shortages, and surpluses in a transparent visual model.
Open toolHTML to Figma
Convert HTML projects into structured Desktop, Tablet, and Mobile layouts prepared for Figma.
Open toolPercentage Calculator
Calculate percentages, proportional shares, and percentage changes instantly.
Open toolUnit Price Calculator
Compare products by normalized price per kilogram, liter, or piece.
Open toolFuel & Trip Cost Calculator
Estimate fuel needed, total trip cost, and each passenger’s share.
Open toolAspect Ratio Calculator
Resize dimensions while preserving the original width-to-height ratio.
Open toolPassword Generator
Generate strong random passwords locally with configurable character sets.
Open toolDate Calculator
Find the difference between dates or add and subtract calendar time.
Open toolJSON Formatter & Validator
Format, minify, and validate JSON entirely in your browser.
Open toolUUID Generator
Generate one or many cryptographically random UUID v4 identifiers locally.
Open toolTime Zone Meeting Planner
Compare meeting times across cities, account for daylight saving time, and spot convenient working-hour overlaps.
Open toolInvoice Generator
Create a professional invoice, preview it live, and download a PDF locally in your browser.
Open toolPrecious Metals Calculator
Estimate raw gold, silver, platinum, and palladium value from current spot prices.
Open toolCurrency Converter
Convert currencies with the latest available daily reference rates.
Open toolDaily Calorie Needs Calculator
Estimate resting calories and approximate daily calories for weight maintenance.
Open toolKitchen Measure Converter
Convert kitchen volumes into approximate ingredient weights.
Open toolQR Code Generator
Create static QR codes for URLs, text, email, phone, SMS, and Wi-Fi in your browser.
Open toolVolume Converter
Convert milliliters, liters, cubic units, and US customary volume units instantly.
Open toolWeight Converter
Convert milligrams, grams, kilograms, metric tons, ounces, pounds, and stones instantly.
Open toolSpeed Converter
Convert km/h, mph, m/s, ft/s, knots, and km/s instantly.
Open toolLoan Calculator
Estimate payments, interest, fees, and total borrowing cost.
Open toolROAS Calculator
Calculate return on ad spend from advertising revenue and advertising spend.
Open toolUTM Generator
Create consistent campaign tracking URLs with UTM parameters.
Open toolROI Calculator
Calculate return on investment from revenue and cost.
Open toolBreak-even ROAS Calculator
Calculate the ROAS required to cover a defined profit margin.
Open toolCampaign Name Generator
Create consistent names for advertising campaigns.
Open toolURL Encoder
Encode text and URL components safely in your browser.
Open toolURL Decoder
Decode percent-encoded URL components in your browser.
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