500+ tools name

# Build a 20-category, 500-tool master list and save as JSON and JS exports. import json from pathlib import Path def make_slug(name): return ( name.lower() .replace("&", "and") .replace("+", "plus") .replace("%", "percent") .replace("/", " ") .replace("—", " ") .replace("-", " ") .replace(" ", " ") .strip() .replace(" ", "-") ) catalog = [ ("SEO", [ "Keyword Difficulty Checker", "Keyword Clustering Tool", "Long-Tail Keyword Generator", "SERP Snippet Preview", "Meta Title Length Checker", "Meta Description Length Checker", "Headline Analyzer", "Robots.txt Generator", "Sitemap.xml Generator", "Canonical URL Builder", "Open Graph (OG) Tag Generator", "Twitter Card Generator", "Broken Link Finder (Client-Side)", "Redirect Map Planner", "URL Slug Cleaner", "H1/H2/H3 Structure Checker", "Image Alt-Text Helper", "Schema Markup Generator (FAQ)", "Schema Markup Generator (HowTo)", "Schema Markup Generator (Article)", "Internal Link Suggestion Helper", "Content Readability Score", "Keyword Density Calculator", "Page Word Count Tool", "XML/JSON-LD Validator (Lite)" ]), ("Finance", [ "Loan EMI Calculator", "Simple Interest Calculator", "Compound Interest Calculator", "Mortgage Payment Calculator", "Retirement Savings Planner", "Savings Goal Tracker", "Debt Snowball Planner", "Debt Avalanche Planner", "Credit Card Payoff Calculator", "Investment CAGR Calculator", "Inflation Adjuster", "Salary Tax Estimator (Generic)", "Tip Calculator", "Split Bill Calculator", "Car Loan Calculator", "Student Loan Repayment Estimator", "Home Affordability Calculator", "Rent vs Buy Analyzer", "Savings Rate Calculator", "Net Worth Tracker (Local)", "Emergency Fund Planner", "Budget Allocation Planner (50/30/20)", "Paycheck Withholding Estimator (Generic)", "APR vs APY Converter", "ROI Calculator" ]), ("Crypto", [ "Bitcoin Profit Calculator", "Ethereum Profit Calculator", "Crypto ROI Calculator", "Dollar-Cost Averaging Planner (Crypto)", "Average Buy Price Calculator", "Break-Even Price Calculator", "Portfolio Rebalancer (Manual)", "Staking Rewards Estimator (Generic)", "Mining Profitability Estimator (Lite)", "Gas Fee Estimator (Conceptual)", "Token Allocation Planner", "Risk/Reward Ratio Calculator", "Stop-Loss/Take-Profit Planner", "Fibonacci Levels Calculator (Crypto)", "Position Size Calculator (Crypto)", "Pair Correlation Checker (Manual Input)", "ATH/ATL Distance Checker", "Volatility Range Estimator (Simple)", "Percentage Change Calculator", "Crypto Tax Lot Method Explorer (FIFO/LIFO)", "HODL vs Trade Scenario Simulator (Basic)", "Stablecoin Yield Estimator (Manual)", "Crypto Savings Goal Planner", "Wallet Cost Basis Tracker (Manual)", "Gas to USD Converter" ]), ("Math", [ "Percentage Calculator", "Ratio Calculator", "Proportion Solver", "Fraction Simplifier", "LCM & GCD Calculator", "Prime Number Checker", "Factorial Calculator", "Permutation & Combination Calculator", "Quadratic Equation Solver", "Linear Equation Solver (2 Variables)", "Matrix Determinant Calculator", "Matrix Inverse Calculator", "Vector Dot & Cross Product", "Mean Median Mode Calculator", "Standard Deviation Calculator", "Z-Score Calculator", "Probability Calculator (Basic)", "Binomial Distribution Calculator", "Normal Distribution Calculator", "Logarithm & Exponent Calculator", "Angle Converter (Deg/Rad)", "Complex Number Calculator", "Scientific Notation Converter", "Random Number Generator", "Unit Circle Reference" ]), ("Graphics & Design", [ "SVG Icon Generator (Basic Shapes)", "SVG Path Visualizer", "Color Picker & Contrast Checker", "Gradient Generator", "Box-Shadow Generator", "Text-Shadow Generator", "Border-Radius Previewer", "CSS Clip-Path Maker", "Favicon Generator (Canvas)", "Image Aspect Ratio Calculator", "Responsive Image Sizes Helper", "Palette Harmonizer", "Pixel to REM Converter", "DPI/PPI Calculator", "Golden Ratio Layout Helper", "8pt Grid Spacing Calculator", "Grid/Column Calculator", "Logo Safe Area Guide", "Brand Color Shades/Tints Generator", "CSS Filter Preview", "Lottie Speed/Duration Adjuster (Meta)", "Social Media Banner Size Guide", "Print Size Calculator (Inch↔Pixel)", "Viewport Height/Width Tester", "Color Blindness Simulator (Basic)" ]), ("Text & String", [ "Case Converter (lower/UPPER/Title)", "Slugify Tool", "Find & Replace (Multi-line)", "Remove Duplicates (Lines)", "Sort Lines (A–Z/Z–A)", "Trim/Collapse Whitespace", "Word & Character Counter", "Lorem Ipsum Generator", "JSON Formatter/Minifier", "XML Formatter/Minifier", "Base64 Encode/Decode", "URL Encode/Decode", "UUID Generator", "Hash Generator (MD5/SHA1 demo)", "CSV to JSON Converter", "JSON to CSV Converter", "Regex Tester (Client-Side)", "Diff Checker (Text)", "Unicode Normalizer", "Emoji Picker & Copied Count", "Remove Accents/Diacritics", "Duplicate Word Finder", "Title Capitalization Helper", "Sentence Case Fixer", "Text Reverser" ]), ("Date & Time", [ "Date Difference Calculator", "Add/Subtract Days", "Unix Timestamp Converter", "ISO 8601 Formatter", "Timezone Converter (Static Offsets)", "Workday Calculator", "Age Calculator", "Week Number Finder", "Business Hours Overlap Checker", "Day of Week Finder", "Countdown Timer Generator", "Stopwatch (Browser)", "Pomodoro Timer", "Calendar Generator (Printable)", "Leap Year Checker", "Fiscal Year Week Mapper", "Time Between Timezones (Manual)", "Epoch Milliseconds Converter", "Human-Readable Duration Formatter", "Cron Expression Helper", "Quarter & Semester Finder", "Sunrise/Sunset Day Counter (Approx)", "Timeline Maker (Static)", "Meeting Time Poll (Static)", "Daily Planner Template" ]), ("Unit Converters", [ "Length Converter", "Weight/Mass Converter", "Temperature Converter", "Area Converter", "Volume Converter", "Speed Converter", "Pressure Converter", "Energy Converter", "Power Converter", "Time Converter", "Angle Converter", "Data Size Converter", "Data Transfer Rate Converter", "Fuel Economy Converter", "Cooking Measurement Converter", "Shoe Size Converter", "Clothing Size Converter", "Typography Units Converter (px/em/rem)", "Torque Converter", "Frequency Converter", "Illuminance Converter", "Luminance Converter", "Viscosity Converter", "Acceleration Converter", "Density Converter" ]), ("Health & Fitness", [ "BMI Calculator", "BMR Calculator (Mifflin-St Jeor)", "TDEE Calculator", "Calorie Intake Planner", "Macros Calculator", "Ideal Body Weight Calculator", "Body Fat % (US Navy)", "Waist-to-Hip Ratio Calculator", "Water Intake Calculator", "Protein Intake Calculator", "1RM Strength Estimator", "Pace Calculator (Run)", "Split Calculator (Swim)", "VO2 Max Estimator (Simple)", "Target Heart Rate Zones", "Calorie Burn Estimator (Activities)", "Pregnancy Due Date Calculator", "Ovulation Calculator", "Sleep Cycle Planner", "Blood Alcohol Content Estimator", "Blood Pressure Category Checker", "Glycemic Load Estimator", "Meal Planner (Macro Template)", "Hydration Reminder Planner", "Steps to Distance Converter" ]), ("Education & Exams", [ "GPA Calculator", "Weighted GPA Calculator", "Grade Needed on Final", "Percentage to Letter Grade", "Study Planner (Pomodoro)", "Flashcard Generator (CSV)", "Reading Time Estimator", "Typing Speed Test", "Citation Generator (APA)", "Citation Generator (MLA)", "Plagiarism Risk Checker (Heuristic)", "Equation LaTeX Builder", "Unit Conversion Quiz Maker", "Periodic Table Lookup (Static)", "Chemistry Molar Mass Calculator", "Physics Kinematics Solver (Basic)", "Ohm’s Law Calculator", "Resistor Color Code Decoder", "Circuit Power Calculator", "Statistics Cheat Sheet Generator", "Triangle Solver (SSS/SAS)", "Circle Calculator (Area/Circumference)", "Surface Area & Volume (Solids)", "Prime Factorization Tool", "Number Base Converter" ]), ("Web Development", [ "HTML Meta Tag Generator", "Favicon & Manifest Generator", "Open Graph/Twitter Meta Preview", "JSON Schema Validator (Lite)", "JWT Decoder (Client-Side)", "CSS Minifier", "JS Minifier (Simple)", "HTML Beautifier", "HTTP Status Code Explainer", "CORS Header Helper", "Content Security Policy Builder", "Service Worker Boilerplate Maker", "Viewport/Breakpoint Tester", "Responsive Grid Preview", "Flexbox Playground", "CSS Specificity Calculator", "Accessibility Contrast Checker", "ARIA Roles Quick Reference", "SVG Optimizer (Client)", "WebP Converter (Canvas)", "Image Compressor (Canvas)", "Base64 Image Encoder", "Browser Feature Support Matrix (Static)", "Regex Escape Helper", "UUID v4 Generator" ]), ("Data & CSV", [ "CSV Cleaner (Trim/Normalize)", "CSV Deduplicator", "CSV Splitter/Merger", "CSV Column Extractor", "CSV Join (Inner/Left) – Client", "Pivot Table (Client-Side)", "Data Type Guesser", "Outlier Detector (IQR)", "Simple Linear Regression (Client)", "Correlation Calculator", "Histogram Generator", "Box Plot Generator (Canvas)", "Time Series Resampler (Client)", "JSON Merge Tool", "YAML ⇄ JSON Converter", "Markdown ⇄ HTML Converter", "UUID Column Adder", "CSV to HTML Table Builder", "CSV to Chart (Canvas)", "Duplicate Row Finder", "Null/Empty Cell Filler", "Random Row Sampler", "Dataset Anonymizer (Heuristic)", "Regex Column Extractor", "Date Parser (Multi-Format)" ]), ("E-commerce & Pricing", [ "Discount Calculator", "Tiered Pricing Calculator", "Profit Margin Calculator", "Break-Even Quantity Calculator", "Free Shipping Threshold Planner", "Bundle Builder Profit Estimator", "Coupon Impact Estimator", "Landed Cost Estimator (Generic)", "Currency Rounding Helper", "Sales Tax Estimator (Generic)", "Subscription Churn Impact Estimator", "ARPU Calculator", "Customer LTV Calculator (Simple)", "CAC Payback Calculator", "Inventory Reorder Point (Basic)", "EOQ Calculator", "Lead Time Demand Estimator", "ABC Inventory Classification Helper", "Price Elasticity Sandbox (Heuristic)", "AOV Uplift Planner", "Refund Rate Impact Estimator", "Upsell/Bundle Attach Rate Planner", "Seasonality Index Builder (Manual)", "Daily Sales Goal Tracker", "SKU Profitability Checker (Manual)" ]), ("Marketing & Social", [ "UTM Builder", "Campaign ROI Calculator", "Ad Budget Splitter", "CPC/CPA/CPL Calculator", "Ad Frequency Capping Planner", "Email Subject Line Tester", "AB Testing Calculator (Bayesian Lite)", "Sample Size Calculator (AB Test)", "Lift Calculator", "Hashtag Generator (Rule-Based)", "Post Timing Planner (Heuristic)", "Content Calendar Template", "Share of Voice Estimator (Manual)", "Brand Sentiment Counter (Lexicon)", "Click-Through Rate Calculator", "Funnel Drop-Off Analyzer (Manual)", "Lead Scoring Helper (Rules)", "Customer Segmentation Helper", "NPS Calculator", "Churn Rate Calculator", "Virality (K-Factor) Estimator", "Lifetime Value Simulator (Cohort Lite)", "Engagement Rate Calculator", "View-Through Rate Calculator", "Retention Curve Plotter (Client)" ]), ("Productivity", [ "To-Do List (Kanban Lite)", "Time Blocking Planner", "Goal Tracker (OKR Template)", "Habit Tracker", "Eisenhower Matrix Builder", "Priority Score Calculator (RICE)", "Meeting Agenda Builder", "Note to Markdown Converter", "Mind Map Maker (Canvas)", "Decision Matrix (Weighted)", "Daily Journal Template", "Weekly Planner", "Invoice Generator (Static)", "Estimate/Quote Generator (Static)", "Contract Template Filler (Static)", "Resume/CV Builder (Static)", "Cover Letter Generator (Template)", "Expense Tracker (LocalStorage)", "Pomodoro Task Manager", "Focus Timer", "Reading List Manager", "Bookmarks Deduplicator", "Clipboard History (Local)", "QR Code Generator", "Barcode (EAN/UPC) Generator (Canvas)" ]), ("Geography & Travel", [ "Distance Calculator (Haversine)", "Midpoint Finder (Coordinates)", "Fuel Cost Trip Estimator", "Time Zone Meeting Planner", "Country Code & Dialing Lookup", "Airport Code Finder (Static)", "City Latitude/Longitude Finder (Static)", "Travel Packing Checklist Generator", "Currency Converter (Travel)", "Travel Budget Planner", "Visa Requirement Checker (Static)", "Weather Clothing Guide (Heuristic)", "Best Travel Month Planner (Heuristic)", "Road Trip Stop Interval Planner", "Jet Lag Recovery Planner", "Layover Time Planner", "Seat Pitch & Width Guide (Static)", "Hotel Tax/Fees Estimator (Generic)", "Tip Culture Guide (Static)", "Embassy Contact Lookup (Static)", "Local Emergency Numbers (Static)", "Driving Time Estimator (Avg Speed)", "Luggage Size Checker (Static)", "Wi-Fi Speed Test (Browser)", "Sunrise/Sunset Time Estimator (Approx)" ]), ("Music & Audio", [ "Tone Generator", "BPM Tap Counter", "Tempo to Milliseconds Converter", "Pitch Detector (Mic)", "Note Frequency Chart", "Chord Identifier (Basic)", "Scale Finder (Basic)", "Metronome", "Audio Trim (Client-Side)", "MP3 Bitrate Calculator", "Audio to Text Cleaner (Heuristic)", "Sine/Square/Saw Synth (WebAudio)", "Reverb/Delay Playground (WebAudio)", "Stereo Panning Visualizer", "Equalizer Curve Designer", "MIDI Note Converter", "Sample Length Calculator (Bars/Beats)", "Key Transposer", "Tuning Offset Calculator (Cents)", "Loudness (LUFS) Estimator (Heuristic)", "Podcast Chapter Timestamp Helper", "ID3 Tag Editor (Client)", "Noise Gate Threshold Helper", "Karaoke Vocal Remover (Phase Demo)", "Audio Spectrum Visualizer (Canvas)" ]), ("Photo & Video", [ "Image Resizer (Canvas)", "Image Cropper (Canvas)", "Background Remover (Threshold Demo)", "PNG to JPG Converter", "GIF to MP4 Converter (Canvas)", "Frame Rate Converter (Heuristic)", "Bitrate Calculator (Video)", "Thumbnail Generator", "Watermark Adder", "EXIF Metadata Viewer (Client)", "Color Grading LUT Previewer", "Aspect Ratio Calculator (Video)", "Subtitle SRT Time Shifter", "Subtitle Word Counter", "Storyboard Grid Maker", "Stop Motion Assembler (Canvas)", "Timelapse Speed Calculator", "Image to ASCII Art", "Cinemagraph Loop Planner", "Shot List Generator", "Camera Sensor Crop Factor", "Depth of Field Calculator", "Shutter Speed Finder (180° Rule)", "White Balance Kelvin Guide", "Lens Field of View Calculator" ]), ("Home & Lifestyle", [ "Recipe Ingredient Scaler", "Kitchen Unit Converter", "Meal Plan Macro Splitter", "Grocery List Generator", "Calorie per Serving Calculator", "Room Paint Estimator", "Tile Quantity Calculator", "Lumber Cut List Optimizer (Heuristic)", "Wallpaper Roll Calculator", "BTU Heating/Cooling Estimator", "Mortgage Refinance Break-Even", "Rent Split Calculator", "Moving Boxes Estimator", "Laundry Care Symbol Guide", "Plant Watering Schedule Planner", "Soil Mix Ratio Calculator", "Pet Food Portion Calculator", "Aquarium Volume Calculator", "Baby Sleep Schedule Planner", "Wedding Budget Planner", "Event Seating Plan Builder (Static)", "Gift Split & Budget Planner", "Cleaning Checklist Generator", "Chore Schedule Planner", "Home Inventory Tracker (Local)" ]), ("Science & Engineering", [ "Ohm’s Law Calculator", "Resistor Divider Calculator", "RC Time Constant Calculator", "RMS Voltage/Current Calculator", "dB Converter (Power/Voltage)", "LED Resistor Calculator", "Battery Life Estimator", "Wire Gauge to Ampacity (Static)", "Beam Deflection (Simple)", "Stress/Strain Calculator (Basic)", "Fluid Flow Rate Calculator (Basic)", "Reynolds Number Calculator", "HVAC Air Changes per Hour", "Heat Transfer Coefficient Estimator (Basic)", "Unit Hydrograph Time of Concentration (Simple)", "pH to [H+] Converter", "Dilution Calculator (C1V1=C2V2)", "Molarity Calculator", "Half-Life Decay Calculator", "Radiation Dose Converter (Heuristic)", "dBm/dBW/dBi Converter", "Antenna Wavelength Calculator", "Satellite Link Budget (Lite)", "Solar Panel Output Estimator (Basic)", "Wind Power Output Estimator (Basic)" ]), ("Real Estate", [ "Rent vs Buy Analyzer", "Mortgage Affordability Calculator", "Refinance Break-Even Calculator", "Amortization Schedule Generator", "Property Tax Estimator (Generic)", "HOA Fee Impact Calculator", "Cap Rate Calculator", "Cash-on-Cash Return Calculator", "Gross Rent Multiplier Calculator", "DSCR Calculator", "NOI Calculator", "BRRRR Deal Analyzer (Lite)", "Fix & Flip Profit Estimator", "Loan-to-Value (LTV) Calculator", "Loan-to-Cost (LTC) Calculator", "Construction Budget Planner", "Renovation ROI Estimator", "Lease vs Buy (Equipment)", "Vacancy Loss Estimator", "Rent Increase Calculator", "Security Deposit Calculator", "Square Footage Calculator", "Property Yield Calculator", "Agent Commission Split Calculator", "Title Insurance Cost Estimator (Generic)" ]), ("Statistics & Probability", [ "Confidence Interval Calculator", "t-Test Calculator (Independent)", "Chi-Square Test (Goodness of Fit)", "ANOVA (One-Way) – Lite", "Correlation Significance Tester", "Sample Size Calculator (Survey)", "Margin of Error Calculator", "Bayes Theorem Calculator", "Beta Distribution Calculator (Lite)", "Poisson Distribution Calculator", "Geometric Distribution Calculator", "Exponential Distribution Calculator", "Hypergeometric Calculator", "Confidence Bands (Proportion)", "Random Sampling Tool", "Bootstrap Resampler (Client)", "AUC/ROC Estimator (Heuristic)", "Gini Coefficient Calculator (Discrete)", "Confusion Matrix Metrics", "Cohen’s d Effect Size", "Correlation Matrix Builder (Client)", "P-Value to Z/T Converter", "Logistic Growth Curve Fitter (Heuristic)", "Markov Chain Simulator (Basic)", "Monte Carlo Simulator (Dice)" ]), ] # Ensure we have exactly 20 categories; if less add more categories from earlier plan # Add "Work & HR" and "Legal & Compliance" to reach 20 if needed. if len(catalog) < 20: catalog.append(("Work & HR", [ "Salary Breakup Calculator", "Overtime Pay Calculator", "Shift Roster Planner", "OKR Tracker Template", "Performance Review Generator (Template)", "Vacation Accrual Calculator", "Sick Leave Tracker", "Hiring Cost Estimator", "Interview Scorecard Builder", "Time-Off Balance Calculator", "Contractor vs Employee Cost", "Payroll Proration Calculator", "Expense Reimbursement Calculator", "Per Diem Calculator", "Commute Benefit Estimator", "Team Capacity Planner", "RACI Matrix Builder", "Standup Notes Generator", "Meeting Minutes Formatter", "Workload Distribution Planner", "Feedback Template Generator", "Onboarding Checklist Builder", "Training Hours Tracker", "Certificate Generator (Static)", "Holiday Calendar Builder (Static)" ])) if len(catalog) < 20: catalog.append(("Legal & Compliance", [ "Privacy Policy Template Filler (Static)", "Terms & Conditions Builder (Static)", "Cookie Policy Generator (Static)", "DPA Checklist (Static)", "NDA Template Filler (Static)", "Contract Clause Library (Static)", "Invoice Compliance Checklist", "GDPR Rights Request Tracker (Static)", "Data Breach Impact Estimator (Heuristic)", "PII Classification Helper (Static)", "Risk Matrix Builder", "Issue Severity Calculator", "Change Log Generator", "Release Notes Formatter", "Audit Trail Template", "Incident Timeline Builder", "Access Review Checklist", "Password Policy Strength Checker", "Security Headers Checklist", "Vendor Risk Questionnaire (Static)", "License Compatibility Checker (Static)", "Open Source Notice Builder", "Export Control Checklist (Static)", "Billing Dispute Letter Generator (Static)", "DMCA Takedown Letter Generator (Static)" ])) # Transform into structured list with slugs structured = [] for cat, tools in catalog: items = [{"name": t, "slug": make_slug(t)} for t in tools] structured.append({"category": cat, "tools": items}) # Save JSON out_dir = Path("/mnt/data") out_dir.mkdir(parents=True, exist_ok=True) json_path = out_dir / "tools_master_list_20x25.json" with open(json_path, "w", encoding="utf-8") as f: json.dump(structured, f, ensure_ascii=False, indent=2) # Save JS export js_path = out_dir / "tools_master_list_20x25.js" with open(js_path, "w", encoding="utf-8") as f: f.write("export const TOOL_CATALOG = ") json.dump(structured, f, ensure_ascii=False, indent=2) f.write(";\n") json_path.as_posix(), js_path.as_posix()