Every tool, by category
Free, fast, mobile-friendly tools. Tools marked coming soon are on the way.
Business Tools
Profit Margin Calculator
Work out your gross profit, profit margin, and markup from a selling price and cost.
Markup Calculator
Turn a cost and markup percentage into a selling price, with the markup amount and profit margin.
Invoice Generator
Create a professional invoice with live preview. Add your logo, line items, tax, and discount. Print or save as PDF instantly.
Quote Generator
Create a clear price quote for a client and download or print it.
Break-even Calculator
Find the units or revenue you need to cover fixed and variable costs.
Finance and Money Tools
Percentage Calculator
Work out percentages quickly. Find a percentage of a number, what percent one number is of another, and percentage increase or decrease.
Discount Calculator
Work out the final price, the amount saved, and the savings percentage from one or two discounts.
Sales Tax Calculator
Add or remove sales tax at any rate and see the pre-tax amount, tax amount, and total.
VAT Calculator
Add or remove VAT at any rate and see the net, VAT, and gross amounts.
Loan Payment Calculator
Estimate the monthly payment on a loan from amount, rate, and term.
Property and Home Tools
Rental Property Profit Calculator
Calculate monthly cash flow, cap rate, and cash-on-cash return for any rental property.
Rent vs Buy Calculator
Compare the true total cost of renting versus buying over any time horizon. Includes equity, appreciation, and opportunity cost.
Property Flip Profit Calculator
Calculate net profit, ROI, and annualised return on a house flip including all hidden costs.
Renovation ROI Calculator
Estimate the ROI on a home renovation before you commit. Includes contingency budget and expected value increase.
Airbnb Profit Calculator
Calculate monthly Airbnb net income from nightly rate, occupancy, platform fees, cleaning costs, and running expenses.
Mortgage Affordability Calculator
Find your maximum home price based on income, debts, down payment, and the 28/43 DTI rules lenders use.
Cash Needed to Buy Property
Calculate the total cash required to buy a property: down payment, closing costs, inspection, moving, repairs, and emergency reserves.
Property Holding Cost Calculator
Calculate the total cost of holding a property for any number of months. Essential for flippers, vacant property owners, and investors.
Mortgage Refinance Break-Even Calculator
Find out how long it takes for a mortgage refinance to pay for itself and how much you save over the life of the loan.
Marketing and Content Tools
QR Code Generator
Generate a QR code for any URL, text, email, or phone number. Download as PNG.
WiFi QR Code Generator
Create a QR code for your WiFi network so guests can connect without typing the password.
Barcode Generator
Generate barcodes in CODE128, CODE39, EAN-13, EAN-8, UPC-A, and other formats. Download as PNG or SVG.
Barcode Validator
Validate any barcode and calculate GS1 check digits for UPC-A, EAN-13, EAN-8, and ITF-14.
ISBN Barcode Generator
Generate print-ready ISBN barcodes from any ISBN-10 or ISBN-13. Auto-converts and calculates check digits.
Sequential Barcode Generator
Generate sequential barcode labels like SN-0001 to SN-0500 and download a printable PDF sheet.
Barcode Label Sheet Generator
Create printable barcode label sheets with product name, SKU, price, and barcode. Enter manually or paste a CSV.
EAN-13 Barcode Generator
Generate EAN-13 barcodes with auto check digit calculation. Download as PNG or SVG.
UPC-A Barcode Generator
Generate UPC-A barcodes with auto check digit calculation. Used for US and Canadian retail products.
ITF-14 Carton Barcode Generator
Generate ITF-14 carton barcodes (GTIN-14) with auto check digit. Used for shipping cases and logistics labels.
Code 128 Barcode Generator
Generate Code 128 barcodes for inventory, shipping, and internal labels. Encodes the full ASCII character set.
Code 39 Barcode Generator
Generate Code 39 barcodes for asset tags, ID badges, and legacy inventory systems. Auto-uppercases input and flags invalid characters.
Converters and Utilities
File Size Converter
Convert between bytes, KB, MB, GB, and TB instantly. See all unit equivalents at once.
PDF Merger
Merge multiple PDF files into one. Drag to reorder pages. Runs entirely in your browser.
PDF Compressor
Compress PDF files to reduce their size. Works best on text and office documents.
PDF to JPG Converter
Convert PDF pages to JPG images. All pages extracted and ready to download.
Image Tools
Image Resizer
Resize images to exact pixel dimensions or scale by percentage. Works in your browser.
Image Compressor
Compress JPG, PNG, and WebP images to reduce file size without losing visible quality.
JPG to PNG Converter
Convert JPG images to PNG format instantly in your browser. Free, no signup.
PNG to JPG Converter
Convert PNG images to JPG format. Choose a background color for transparent areas.
WebP Converter
Convert images to WebP format, or convert WebP files to JPG or PNG.
Aspect Ratio Calculator
Find the aspect ratio of any dimensions, or calculate a missing width or height from a ratio.