Explore UsefulFox
Every utility is organised into a clearly colour-coded collection, so the right tool is easy to spot.
PDF Toolkit
Open toolkit →Money
Finance, VAT, mortgages, interest and everyday calculations.
Calculate percentages in seconds.
Add or remove VAT.
Estimate monthly mortgage repayments.
Estimate monthly repayments for a fixed-rate loan.
Estimate future value with compound growth.
Estimate the value of regular monthly savings.
Calculate sale prices and savings.
Calculate profit and gross margin.
Calculate monthly saving needed for a goal.
Estimate future buying power under inflation.
Calculate residential SDLT for England and Northern Ireland.
Convert hourly pay and annual gross salary.
Free Document Generator
Create professional documents, letters, agreements, invoices and work forms for free.
Create and print a professional invoice.
Build a clean CV for job applications.
Create a tailored cover letter.
Send a clear price estimate before work begins.
Create a simple mutual confidentiality agreement.
Record decisions and action items.
Time & Date
Dates, working days, ages, countdowns and time planning.
Converters
Fast conversions for length, weight, temperature, data and more.
Convert common units.
Convert metres, feet, inches and miles.
Convert kilograms, pounds and stones.
Convert Celsius, Fahrenheit and Kelvin.
Convert litres, UK gallons, UK pints and cups.
Convert mph, km/h and metres per second.
Convert bytes, KB, MB, GB and TB.
Text
Count, clean, compare and transform written content.
Developer
Format, encode, validate and preview technical content.
Encode or decode Base64 text.
Generate a strong password.
Generate a version 4 UUID.
Encode or decode URL text.
Format, validate and minify JSON.
Generate a random number in a range.
Write Markdown and preview formatted HTML instantly.
Images
Convert, compress, resize and prepare images privately.
Convert images locally in your browser.
Reduce image file size locally.
Resize an image to exact dimensions.
Convert PNG images to JPG.
Convert images to WebP.
Remove simple solid-colour image backgrounds in your browser.
Security
Generate stronger passwords and inspect encoded data.
Share
Create QR codes, barcodes and reusable sharing assets.
AI
Build clearer prompts for writing, research and creative work.
Design
Pick colours and create useful visual assets.
YouTube
Thumbnails, embeds, titles, descriptions and publishing helpers.
Home
Practical tools for home.
Estimate paint needed for walls and rooms.
Estimate tiles required with wastage.
Estimate flooring packs and cost.
Estimate wallpaper rolls for a room.
Estimate concrete for slabs and paths.
Estimate usable garden area.
Travel
Practical tools for travel.
Study
Practical tools for study.
Everyday
Practical tools for everyday.