Do more in your browser.
Lightning-fast converters, calculators, legal document generators, and business tools that respect your privacy and run instantly — no sign-up, no upload.
WEBP to PNG Converter
Convert WEBP images to PNG instantly in your browser. Nothing is uploaded to a server.
Freelance Hourly Rate Calculator
Work out what to charge per hour based on your income goal, expenses, and billable time.
Subscription Cost Analyzer
Add up your Netflix, Spotify, and other subscriptions to see what they really cost over 1, 5, and 10 years.
Image Resizer & Compressor
Resize and compress photos in your browser. Pick a format and quality, download instantly.
Currency Converter
Convert between 12 major currencies with live exchange rates. Pick any pair, no sign-up.
Timezone Converter
Convert a time between 12 major cities worldwide, with daylight saving handled automatically.
WEBP to JPG Converter
Convert WEBP images to JPG instantly in your browser, with an adjustable quality slider.
Image to PDF Converter
Combine one or more JPG, PNG, or WEBP images into a single downloadable PDF.
PDF to Image Converter
Turn every page of a PDF into a downloadable PNG or JPG image.
Merge PDF Files
Combine multiple PDF files into one, in any order you choose.
Split PDF File
Extract specific pages or page ranges from a PDF into a new file.
Length Converter
Convert between mm, cm, m, km, inches, feet, yards, and miles instantly.
Weight Converter
Convert between mg, g, kg, tonnes, ounces, pounds, and stone instantly.
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin instantly.
Area Converter
Convert between square meters, square feet, acres, hectares, and more instantly.
Volume Converter
Convert between milliliters, liters, gallons, quarts, pints, and cups instantly.
Speed Converter
Convert between mph, km/h, m/s, knots, and feet per second instantly.
QR Code Generator
Create a QR code from a link, WiFi network, contact card, email, or plain text — free, no sign-up.
Favicon Generator
Turn any image into a full favicon set — 16px to 512px, plus a ready-to-paste HTML snippet.
Social Media Image Resizer & Cropper
Crop and resize a photo to the exact pixel size for Instagram, Facebook, X, or YouTube — pick a preset, drag to reposition, download.
Instagram Image Size Tool
Crop a photo to the exact size for an Instagram square post, portrait post, Story, Reel cover, or profile picture.
Facebook Image Size Tool
Crop a photo to the exact size for a Facebook post, cover photo, profile picture, Story, or event cover.
X (Twitter) Image Size Tool
Crop a photo to the exact size for an X post, header banner, or profile picture.
YouTube Thumbnail Maker
Crop a photo to the exact 1280x720 YouTube thumbnail size, plus channel banner and profile picture presets.
Mortgage Calculator
Estimate your monthly mortgage payment, total interest, and full amortization schedule.
Auto Loan Calculator
Estimate your monthly car payment, total interest, and payoff schedule for a new or used vehicle.
Personal Loan Calculator
Estimate your monthly payment and total interest on a personal loan.
Retirement Savings Calculator
Project how your retirement savings could grow with regular contributions and compound interest.
Compound Interest Calculator
See how an investment grows over time with compound interest and regular monthly contributions.
Debt Payoff Calculator
Compare the debt snowball and avalanche methods to see which pays off your debts faster and cheaper.
NDA Generator
Create a mutual or one-way non-disclosure agreement and download it as a signable PDF.
Bill of Sale Generator
Create a general or vehicle bill of sale with buyer, seller, and item details as a signable PDF.
Power of Attorney Generator
Create a general or limited power of attorney naming your agent, ready for notarization.
Life Insurance Needs Calculator
Estimate how much life insurance coverage your family would need using the DIME method.
Car Insurance Coverage Calculator
Find recommended liability limits and whether full coverage is still worth it for your car.
Invoice Generator
Create a professional invoice with line items, tax, and totals, then download it as a PDF.
ROI Calculator
Calculate your return on investment and annualized ROI from an initial and final value.
Break-Even Point Calculator
Find how many units you need to sell to cover your costs, based on fixed and variable costs.
More tools coming soon →
New calculators and converters are added regularly.
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Why TechyTools.in?
Runs on your device
Most tools here process everything locally in your browser using standard web APIs. Your files and numbers never touch a server, so there's nothing of yours to upload, store, or lose.
No waiting around
Nothing to upload means nothing to wait on. Results appear as fast as your own device can compute them — usually instantly.
Free, no account
Every tool is free with no sign-up. The site is supported by ads instead of subscriptions — open a tool, use it, and go.