Free Online Tools for PDF, Images, Calculators & QR Codes
Every tool runs in your browser, so your files never leave your device.
PDF Tools
All pdf toolsMerge, compress and convert PDF files in your browser.
Image Tools
All image toolsCompress, resize and convert images without uploading them.
Calculators
All calculatorsAge, percentage, GPA, CGPA and BMI calculators that show the formula.
Age Calculator
Find exact age in years, months and days, plus your next birthday.Percentage Calculator
Percent of a number, percent change, marks percentage and more.CGPA Calculator
Combine semester GPAs into a credit-weighted CGPA.GPA Calculator
Calculate GPA from course grades and credit hours.BMI Calculator
Work out body mass index for adults in metric or imperial units.
Text & QR Tools
All text & qrCount words and characters, and create QR codes.
Simple tools for everyday tasks
This site collects the small tools people reach for again and again: joining PDF files, shrinking a photo so an online form will accept it, turning pictures into a PDF, working out a percentage or a GPA, counting the words in an essay, or making a QR code for a link or a WiFi network. Each tool has one job and a clear screen, so you can finish the task and move on.
Your files stay on your device
Many online converters send your file to a server, process it there and send it back. These tools work differently. The processing code downloads to your browser with the page, and your PDFs and images are handled on your own phone or computer. Nothing you open here is uploaded, which matters when the file is an ID card, a payslip, a signed form or a medical report.
Free, with no account
There is no sign-up, no email gate and no watermark added to your results. Open a tool, use it and download the result.
Clear results you can check
The calculators show the formula behind every answer, and the file tools report the real size of what they produce, including when a file cannot be made as small as you asked. Where a rule depends on an official body, such as a photo size for a form or a university's grading scale, the page says so and asks you to check the official source.
Works on phones and computers
Every page is built to work in a mobile browser as well as on a desktop, so you can use it on an iPhone, an Android phone, a tablet, a Windows PC or a Mac without installing an app. Very large files take longer on older phones, because your own device does the work.
Pick a category above, or use the search box to jump straight to the tool you need.