Get your file accepted, first try
Exact pixel size, an exact KB range — including the minimum, which is what actually gets uploads rejected and which almost every other tool ignores. 117 free tools to merge, compress, and convert PDFs, photos, and documents, all running in your browser.
Fix a photo for an upload form →Don't take our word for it — turn off your Wi-Fi. Docexp keeps working. A site that runs with the network off cannot be uploading your files anywhere.
Free Math Tools & Calculators
Calculators and math utilities that give you the answer instantly, computed right in your browser.
- CalculatorEvaluate a simple arithmetic expression (+, -, *, /, parentheses).
- Loan / EMI calculatorEstimate the monthly payment on a fixed-rate loan.
- Compound interest calculatorProject how a principal grows with compound interest over time.
- Tip calculatorSplit a bill with tip across a group.
- Discount calculatorWork out the sale price after a percentage discount.
Frequently asked questions
Are these calculations done on my device?
Yes — every calculator here runs in the page. Loan amounts, interest figures, and anything else you type stay on your machine.
Can I rely on the EMI and interest figures for a real loan decision?
Treat them as planning figures. The calculators use the standard formulas, but a real bank quote adds processing fees, insurance, and its own rounding conventions, so the sanctioned EMI can differ slightly from any calculator's answer — including this one's.
Do the calculators work offline?
Yes. Once the page has loaded, the math needs no network at all — you can disconnect and keep calculating.