Free Online Tools & Calculators
A comprehensive collection of 100+ free online tools, productivity apps, and web-based utilities designed to solve everyday problems. No downloads, no sign-ups, just instant solutions.
Health & Wellness
Diet Specific Advisor
Get diet recommendations for your health goals.
Fast Tracker
A simple timer to track your intermittent fasts.
Supplement Advisor
Find the right supplements for your wellness needs.
Digital Detox Planner
Create a plan to unplug and reduce screen time.
Sleep Routine Generator
Build a better sleep schedule for restful nights.
Habit Cost Calculator
See the long-term financial cost of daily habits.
Ergonomics Calculator
Optimize your workspace for comfort and health.
Meal Prep Calculator
Plan your meals for the week to save time.
Macro Calculator
Calculate your daily intake of protein, carbs, and fats.
Intermittent Fasting Calculator
Find your perfect fasting and eating windows.
Cognitive Bias Test
Explore your cognitive biases for better decisions.
Nutrient Density Calculator
Analyze the nutritional value of your foods.
Dehydration Symptom Checker
Check your symptoms to assess hydration levels.
Opportunity Cost Calculator
Understand the true cost of your choices.
Meditation Timer
A simple timer for your meditation sessions.
Nootropic Stack Recommender
Get recommendations for cognitive enhancers.
Glycemic Load Calculator
Calculate the glycemic load of your meals.
Workout Recovery Planner
Plan your post-workout recovery for best results.
At-Home Health Test Finder
Find relevant at-home health testing kits.
Supplement Timing Calculator
Optimize when you take your supplements.
BMI Calculator
Calculate your Body Mass Index.
Body Fat Calculator
Estimate your body fat percentage.
Pregnancy Calculator
Estimate your due date and key milestones.
Pregnancy Conception Calculator
Calculate the best time to conceive.
Pace Calculator
Calculate running pace, time, or distance.
Carbohydrate Calculator
Calculate your daily carbohydrate needs.
Healthy Weight Calculator
Find your ideal healthy weight range.
One-Rep Max Calculator
Estimate your one-rep maximum for lifts.
Protein Calculator
Determine your optimal daily protein intake.
TDEE Calculator
Calculate your Total Daily Energy Expenditure.
Conception Calculator
Estimate your most fertile days.
GFR Calculator
Estimate kidney function with GFR.
Body Surface Area Calculator
Calculate the total surface area of your body.
Overweight Calculator
Assess your weight status based on BMI.
Wealth & Finance
FIRE Calculator
Plan your journey to Financial Independence.
Side Hustle Tax Calculator
Estimate taxes for your freelance income.
Subscription Calculator
Track your recurring subscription costs.
Rent vs. Buy Calculator
Compare the costs of renting vs. buying.
Windfall Planner
Plan how to manage unexpected income.
True Cost Calculator
Calculate the total cost of ownership for items.
Charity Planner
Plan your charitable giving effectively.
Rewards Optimizer
Maximize your credit card rewards.
Inflation Visualizer
See the impact of inflation on your money.
Real Hourly Rate Calculator
Uncover your true hourly wage.
Mortgage Calculator
Estimate your monthly mortgage payments.
Auto Loan Calculator
Calculate monthly car loan payments.
Student Loan Calculator
Estimate your student loan payments.
VAT Calculator
Calculate Value Added Tax amounts.
ROI Calculator
Calculate the Return on Investment.
Payment Calculator
Calculate loan payment amounts.
Amortization Calculator
View a loan amortization schedule.
Currency Calculator
Convert between different currencies.
Finance Calculator
A versatile financial calculator.
Tax Calculator
Estimate your income tax liability.
Salary Calculator
Convert salary between different pay periods.
Interest Rate Calculator
Solve for any variable in the interest formula.
House Affordability Calculator
Determine how much house you can afford.
Rent Calculator
Calculate your rent budget.
Estate Tax Calculator
Estimate potential estate tax.
Social Security Calculator
Estimate your Social Security benefits.
Annuity Payout Calculator
Calculate payouts from an annuity.
Credit Card Payoff Calculator
Find out how long to pay off your card.
Debt Consolidation Calculator
See if debt consolidation is right for you.
Simple Interest Calculator
Calculate simple interest on a loan or investment.
Bond Calculator
Calculate the price of a bond.
IRA Calculator
Plan for your retirement with an IRA.
Auto Lease Calculator
Estimate your monthly car lease payments.
Average Return Calculator
Calculate the average return of an investment.
Discount Calculator
Calculate the final price after a discount.
Debt Ratio Calculator
Calculate your debt-to-income ratio.
Take-Home Pay Calculator
Estimate your net pay after taxes.
Boat Loan Calculator
Calculate payments for a boat loan.
Refinance Calculator
See if refinancing your mortgage makes sense.
Rental Property Calculator
Analyze the profitability of a rental property.
FHA Loan Calculator
Estimate payments for an FHA loan.
Down Payment Calculator
Calculate the down payment for a house.
Payback Period Calculator
Calculate the payback period for an investment.
Mortgage Calculator UK
Estimate mortgage payments in the UK.
Mortgage Amortization Calculator
View your mortgage amortization schedule.
Productivity
Nano-Banana Prompt Generator
Generate prompts for the Nano-Banana model.
Veo-3 Prompt Generator
Create prompts for the Veo-3 video model.
Midjourney Prompt Generator
Create artistic prompts for AI images.
DeepSeek Prompt Generator
Generate prompts for the DeepSeek AI model.
Grok Prompt Generator
Craft effective prompts for the Grok AI.
ChatGPT Prompt Generator
Generate effective prompts for ChatGPT.
AI Prompt Generator
A general-purpose AI prompt generator.
Muslim Name Generator
Generate traditional and modern Muslim names.
Resume Analyzer
Get feedback to improve your resume.
Deep Work Planner
Schedule focused work sessions.
Meeting Cost Calculator
Calculate the true cost of meetings.
Filler Word Counter
Analyze speech for filler words.
Business Idea Generator
Brainstorm unique business ideas.
Subject Line Tester
Test email subject lines for effectiveness.
WFH Designer
Design your ideal work-from-home setup.
Learning Path Generator
Create a custom learning plan for any skill.
Decision Journal
Track your decisions to improve judgment.
Imposter Syndrome Tracker
Track and manage feelings of imposter syndrome.
Lifestyle & Hobbies
Pantry to Plate
Get recipes from your on-hand ingredients.
Packing List Generator
Create a customized packing list for any trip.
Board Game Recommender
Find the perfect board game for your group.
Cocktail Generator
Discover cocktails you can make now.
Coffee Calculator
Calculate the perfect coffee-to-water ratio.
Gift Idea Generator
Find the perfect gift for anyone.
DIY Project Estimator
Estimate time and cost for DIY projects.
Houseplant Scheduler
Create a care schedule for your plants.
Movie Marathon Planner
Plan the perfect movie marathon.
Digital & Content
Image Background Remover
Instantly remove image backgrounds.
LLMs.txt Generator
Generate a text file for large language models.
Favicon Generator
Create a favicon for your website.
Color Palette Generator
Generate beautiful color schemes.
Hashtag Generator
Find trending hashtags for social media.
Facebook Hashtag Generator
Find top hashtags for Facebook posts.
Instagram Hashtag Generator
Generate trending hashtags for Instagram.
Threads Hashtag Generator
Find relevant hashtags for Threads.
TikTok Hashtag Generator
Discover hashtags to go viral on TikTok.
X (Twitter) Hashtag Generator
Generate effective hashtags for X.
YouTube Hashtag Generator
Find hashtags to boost your YouTube videos.
Website Grader
Analyze your website's performance.
Readability Analyzer
Check the reading level of your content.
YouTube Analyzer
Analyze performance of YouTube videos.
Domain Brainstormer
Brainstorm available domain names.
Minimalist Logo Maker
Create a simple, minimalist logo.
MicroSaaS Generator
Generate ideas for MicroSaaS businesses.
Bio Generator
Create a professional bio for your profiles.
Content Repurposer
Get ideas for repurposing your content.
Legal Generator
Generate basic legal document templates.
Math Calculators
Scientific Calculator
An advanced calculator for scientific calculations.
Basic Calculator
A simple calculator for everyday math.
Percent Calculator
Easily solve all types of percentage problems.
Average Calculator
Calculate the mean of a set of numbers.
Pythagorean Theorem Calculator
Find the missing side of a right triangle.
Random Number Generator
Generate random numbers in a range.
Area Calculator
Calculate the area of common shapes.
Volume Calculator
Calculate the volume of common 3D shapes.
Slope Calculator
Calculate the slope of a line from two points.
Z-Score Calculator
Calculate the z-score of a raw value.
Binary Calculator
Perform calculations with binary numbers.
Circle Calculator
Calculate properties of a circle.
GCF Calculator
Find the Greatest Common Factor.
Half-Life Calculator
Calculate radioactive decay.
Mean, Median, Mode, Range Calculator
Calculate statistical measures.
Percent Error Calculator
Calculate the percent error.
Prime Factorization Calculator
Find the prime factors of a number.
Probability Calculator
Calculate probabilities of events.
Ratio Calculator
Simplify and work with ratios.
Root Calculator
Calculate the root of a number.
Rounding Calculator
Round numbers to a specified place.
Scientific Notation Calculator
Convert to and from scientific notation.
The Ultimate Collection of Free Online Tools & Calculators
In today's fast-paced digital landscape, efficiency is everything. Whether you are a student mapping out a study schedule, a financial planner analyzing mortgage amortization, or a content creator generating AI prompts, having the right digital utility can save you hours. WebLab.Tools is your comprehensive, all-in-one platform featuring over 100 free web-based apps, calculators, and generators designed to solve everyday problems instantly.
Why WebLab.Tools is the Best Platform for Web Utilities
Unlike downloadable software or premium app subscriptions, our platform is built on modern web technologies designed to prioritize user experience and security. Here is why thousands of users rely on our tools daily:
- 100% Free, Forever: Every single financial calculator, health tracker, and productivity generator on this site is entirely free. There are no paywalls or hidden premium features.
- Zero Sign-Ups Required: Access instant solutions without handing over your email address or creating an account.
- Client-Side Privacy (E-E-A-T Focus): Your security is our priority. The vast majority of our tools process data locally within your browser using JavaScript. This means your sensitive financial figures, health metrics, and personal data are never sent to or stored on our servers.
- Cross-Device Compatibility: Our responsive web apps run flawlessly on desktops, tablets, and smartphones without eating up your device's storage.
Explore Our Core Tool Categories
Our platform is meticulously categorized so you can find the exact digital tool you need in seconds:
- Wealth & Finance: Take control of your financial future. Calculate compound interest, map out your FIRE (Financial Independence, Retire Early) journey, or compare renting vs. buying a home.
- Health & Wellness: Optimize your physical and mental health. Discover your ideal macronutrient breakdown, track your intermittent fasting windows, or plan your workout recovery.
- Productivity & AI Prompts: Overcome creative blocks. Generate high-fidelity prompts for Midjourney, ChatGPT, and Veo-3, or analyze your resume to land your next job.
- Digital & Content: Streamline your workflow. Remove image backgrounds instantly, generate trending hashtags, and analyze your website's performance.
- Math Calculators: Solve complex equations easily. From Pythagorean theorems to z-score statistical analysis, we have a calculator for every academic and professional need.
Frequently Asked Questions (FAQs)
Are the tools and calculators on WebLab.Tools actually free?
Yes, 100%. Every utility, calculator, and prompt generator on WebLab.Tools is completely free to use. There are no hidden fees, paywalls, or premium subscriptions required.
Is my personal and financial data safe?
Absolutely. WebLab.Tools prioritizes your privacy by using client-side processing. This means all your data and calculations are processed locally within your own web browser. We do not send, store, or track your personal inputs on our servers.
Do I need to create an account to use the tools?
No. You can access and use all 100+ of our digital tools instantly without creating an account, signing up, or providing an email address.