Free tools for businesses, developers and entrepreneurs
Invoices and receipts, marketing links, developer utilities, PDF and image tools, and everyday calculators. Most are free, and none needs a sign-up.
Business
Invoices, receipts and quotes, and the numbers behind your business.
Invoice generator
Make a professional invoice with VAT and discounts, then download the PDF.
Use freeReceipt generator
Give customers a clean receipt with a PAID stamp in seconds.
Use freeQuotation generator
Send a priced quote and turn it into an invoice when it is accepted.
Open toolProfit calculator
Find your profit, margin, markup and selling price.
Use freeVAT calculator
Add or remove 7.5% VAT from any amount.
Use freeSalary calculator
See take-home pay after tax, pension and NHF.
Coming soonMarketing
Reach customers and track where they come from.
Digital business card
Your own card page with call, WhatsApp and save-contact buttons, a link and a QR code.
Use freeQR code generator
Turn a link, phone number or Wi-Fi login into a QR code you can print.
Use freeWhatsApp link generator
Create a wa.me link with a ready message so customers chat in one tap.
Use freeEmail signature generator
Design a signature with your logo and contacts for any email app.
Use freeUTM builder
Tag your links so you can see which posts and ads bring visitors.
Use freeURL shortener
Short, trackable links for your posts and flyers.
Coming soonCareer
CVs, cover letters and the letters you need at work.
CV builder
Make a professional CV in six designs and download it as a PDF.
Use freeCover letter generator
A cover letter for any job, written from your CV, that matches its design.
Use freeJob letters
Resignation, job application, internship and reference request letters.
Use freeEducation
GPA, JAMB aggregate, references and study tools for students.
GPA and CGPA calculator
Work out your GPA and CGPA on the 5-point or 4-point scale, and your class of degree.
Open toolJAMB aggregate calculator
Combine your UTME, Post-UTME and O'level results into an admission aggregate.
Open toolWord counter
Count words, characters, sentences and reading time as you type.
Use freeCitation generator
Reference books, journals and websites in APA, MLA or Harvard style.
Use freeExam countdown
Count down the days to each of your exams, and add them to your calendar.
Use freeStudy timetable
Make a weekly study timetable from your subjects and free hours.
Use freeProperty & building
Materials for building work, and the numbers behind renting and buying.
Block calculator
How many 6-inch or 9-inch blocks a wall needs, plus cement and sand to lay them.
Use freeCement calculator
Bags of cement and sand for plastering, floor screed or concrete.
Use freeConcrete calculator
Cement, sand and granite for a slab, column, beam or footing (1:2:4 and other mixes).
Use freeTile calculator
How many tiles and cartons a floor or wall needs, with extra for cutting.
Use freePaint calculator
Litres and buckets of paint for your walls and ceilings.
Use freeRoofing sheet calculator
Roof area, long-span metres and the number of roofing sheets for a building.
Use freeHouse rent calculator
The total cost of moving in: rent, agency, legal, caution and service charge.
Use freeRent or buy calculator
Compare renting with buying a home on a mortgage over the years.
Use freeProperty ROI calculator
Rental yield, yearly income and payback time for a property investment.
Use freeDeveloper
Quick utilities for developers. Everything runs in your browser.
JSON formatter
Make JSON readable with clean indentation, or minify it.
Use freeJSON validator
Check JSON and see exactly where an error is.
Use freeUUID generator
Generate random UUIDs (v4) one at a time or in bulk.
Use freePassword generator
Strong, random passwords you can copy.
Use freeHash generator
Create MD5, SHA-1 and SHA-256 hashes of any text.
Use freeBase64 encoder/decoder
Encode text to Base64 or decode it back.
Use freeTimestamp converter
Convert Unix timestamps to dates and back.
Use freeRegex tester
Test a regular expression against sample text and see the matches.
Use freeDocuments
Work with PDFs and images without installing anything.
PDF merger
Combine several PDFs into one file.
Use freePDF splitter
Split a PDF into pages or page ranges.
Use freeImage to PDF
Turn photos and scans into a single PDF.
Use freeImage compressor
Shrink photos for web, WhatsApp and email.
Use freeImage resizer
Resize images to exact sizes for any platform.
Use freePDF to image
Save PDF pages as JPG or PNG images.
Coming soonEveryday
Handy calculators and converters for every day.
Age calculator
Exact age in years, months and days.
Use freeDate calculator
Count days between dates or add working days.
Use freeUnit converter
Length, weight, area, volume and temperature.
Use freePercentage calculator
Percent of a number, increase, decrease and change.
Use freeCurrency converter
Convert naira, dollars, pounds, euros and more.
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No tool matches that search yet. Suggest it.
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Questions
Are these tools really free?
Yes. You can make, download and print as many invoices, receipts and quotations as you need without an account.
Do you keep my details?
No. What you type stays in your own browser so it is there when you come back. We only use it to build your PDF, and we do not store it.
Can I add VAT and discounts?
Yes. VAT is set to 7.5% and you can change the rate or switch it off. Discounts can be a percentage or a fixed amount, and the total is shown in words.
Can I send the invoice to my customer?
You can download it, print it or share it on WhatsApp straight away. With a free odotservices account you can also email it to your customer with your own branding.
