Free tools for your business
Calculators to decide with numbers, and utilities for everyday tasks. They run inside your browser: your files are never uploaded to a server, there's no sign-up and no limits.
Productivity and technology investment
Put numbers on a decision before you make it: how much you save, when it pays back and what your team's time costs.
- FreeSavings calculatorHours and money you save by automating a task.
- FreeROI calculatorReturn on an investment and how many months it takes to pay back.
- FreeSaaS vs custom softwareCompare what you will pay in licences with building your own.
- FreeMeeting cost calculatorWhat a meeting costs, with a live timer.
- FreeLTV / CAC calculatorCustomer lifetime value against what it costs to acquire one.
Invoicing and finance
Invoices, quotes, VAT, margins and the basic numbers of any business.
- FreeInvoice generatorCreate PDF invoices with VAT and withholding.
- FreeQuote generatorPrepare PDF quotes with validity and terms.
- FreeVAT calculatorAdd or remove VAT and calculate withholding.
- FreeMargin calculatorCalculate margin, markup and selling price.
- FreeEmployee cost calculatorGross salary plus social security: what an employee really costs in Spain.
- FreeBreak-even calculatorHow much you need to sell to cover your costs.
- FreeHourly rate calculatorWhat to charge to earn what you need.
PDF and documents
Merge, split and convert documents without uploading them anywhere.
- FreeMerge PDFCombine several PDFs into one, in the order you want.
- FreeSplit PDFExtract pages from a PDF or split it into separate files.
- FreeWord to PDFConvert .docx documents to PDF.
- FreePDF to WordGet a PDF's text into an editable document.
- FreeJPG to PDFTurn photos and images into a PDF.
- FreePDF to JPGTurn every page of a PDF into an image.
Marketing and branding
QR codes, email signatures, campaign links and optimised images.
- FreeQR code generatorCreate QR codes for websites, Wi-Fi, contacts, email or phone.
- FreeCompress imagesReduce file size, resize or convert to JPG, WEBP or PNG.
- FreeEmail signature generatorA professional signature for Gmail, Outlook or Apple Mail.
- FreeUTM link builderLinks with UTM parameters to measure your campaigns.
Frequently asked questions
Do I have to pay anything to use the tools?
Yes. There is no paid version, no sign-up and no watermarks. We build them because they show how we work, and because sometimes the people who use them end up needing something bigger.
Where are my files and data processed?
In your browser. Neither your PDFs nor the figures you type into the calculators are sent to any server. You can check by disconnecting from the internet once the page has loaded: they keep working.
Do the calculators work for any company?
They are designed for businesses and freelancers in Spain: they use euros, Spanish VAT rates and General Scheme social security contributions. Results are indicative; for tax or employment decisions, check them with your accountant.
Can you build a custom tool for my company?
Yes, that is what we do. If you repeat a task every day or need a calculator, configurator or document generator with your own data, tell us what you need.
What's holding you back?
A process, a product idea, a device, a set of systems that should talk to each other. A few lines are enough to get started.
Tell us