🇹 Complete Tool Library
All 70+ Free Tools
Every tool on Gaugeify is free, instant, and runs entirely in your browser. No signup. No paywall. No data collected. Ever.
70
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Showing 70 tools
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💰 Finance & Investment10 tools
View category →Compound Interest Calculator
Year-by-year growth chart with Rule of 72
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Mortgage Calculator
Full PITI breakdown, amortization, PMI
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Salary to Hourly Converter
Annual, monthly, weekly, daily, hourly rates
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Debt Payoff Calculator
Snowball vs avalanche comparison
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ROI Calculator
Total return, annualized ROI, net profit
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Retirement Savings Calculator
Projected savings with age benchmarks
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Inflation Calculator
Purchasing power erosion over time
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Investment Return Calculator
Portfolio growth with asset class presets
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Net Worth Calculator
Assets vs liabilities with age benchmarks
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Break-Even Calculator
Break-even units, revenue, contribution margin
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🔢 Math & Everyday9 tools
View category →Percentage Calculator
X% of Y, % change, increase/decrease
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Age Calculator
Exact age in years, months, days. Zodiac sign
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Tip Calculator
Tip amount, total, and per-person split
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Unit Converter
Length, weight, temperature, volume, area
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Discount Calculator
Sale price, savings, stacked discounts
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Fraction Simplifier
Simplify, add, subtract, multiply fractions
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Days Between Dates
Count days, weeks, months between dates
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Time Duration Calculator
Hours and minutes between two times
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Roman Numeral Converter
Convert numbers to Roman numerals and back
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❤️ Health & Lifestyle8 tools
View category →BMI Calculator
BMI scale, healthy weight range, categories
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Calorie / TDEE Calculator
Daily calorie target for any fitness goal
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Water Intake Calculator
Daily water goal by weight, activity, climate
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Sleep Cycle Calculator
Optimal bedtimes based on 90-min cycles
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Pregnancy Due Date
EDD, trimesters, and pregnancy milestones
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Ideal Weight Calculator
5 medical formulas: BMI, Devine, Robinson…
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Body Fat Estimator
US Navy circumference method
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Running Pace Calculator
Pace, finish time, distance. Race predictions
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💼 Business & Productivity9 tools
View category →Invoice Generator
Professional PDF invoices in 60 seconds
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QR Code Generator
URL, text, email, WiFi QR codes. PNG download
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Password Generator
Cryptographically secure passwords
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Profit Margin Calculator
Gross/net margin, markup conversion
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Word Count Tool
Words, characters, reading time, density
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Business Name Generator
Creative brandable name ideas + domain check
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Reading Time Estimator
How long to read any article or book
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Random Name Picker
Pick random winners from any list
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Decision Maker Wheel
Animated spin wheel for any decision
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🎓 Education & Students7 tools
View category →GPA Calculator
Semester, cumulative, and target GPA
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Grade Calculator
Final grade needed, weighted average, what-if
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Citation Generator
APA, MLA, Chicago for websites, books, journals
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Student Loan Calculator
Monthly payment, interest, payoff timeline
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Pomodoro Study Timer
25/5 focus timer with session tracker
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Word Frequency Counter
Keyword density, word cloud, bigrams
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Flashcard Maker
Create, flip, and study digital flashcards
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🏠 Housing & Real Estate4 tools
View category →📱 Social & Creators3 tools
View category →📷 Image Tools5 tools
View category →🔒 Your images never leave your browser — 100% private, no upload
Image Compressor
Compress JPEG, PNG, WebP. See exact savings
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Image Resizer
High-quality resize by px, %, or preset
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Image Converter
Batch convert JPEG, PNG, WebP — up to 20 files
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Image Cropper
Visual drag, exact pixels, or aspect ratio lock
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SVG to PNG Converter
1x, 2x, 4x scale. Transparent or custom background
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📄 Document Tools5 tools
View category →🔒 Your documents never leave your browser — 100% private, no upload
Images to PDF
Combine images into PDF. Page size and margin control
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PDF to Images
Each PDF page to PNG or JPEG. Up to 50 pages
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PDF Compressor
Reduce PDF size with 4 compression levels
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PDF Merger
Combine PDFs. Drag to reorder. Up to 10 files
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DOCX to Text
Extract text or HTML from Word documents
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🛒 E-Commerce & Seller5 tools
View category →Amazon FBA Calculator
Referral fees, FBA fees, storage, net profit
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Amazon Affiliate Calc
Commission by category, monthly projections
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Etsy Fee Calculator
Listing, transaction, processing, offsite ads
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PayPal Fee Calculator
Standard, invoice, and reverse calculator
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Mileage Calculator
2025 IRS rate 70¢/mile. Business/medical/charity
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🎬 Content Creator3 tools
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