Frequently asked questions
Questions about a specific tool are answered on that tool’s page.
Are my files uploaded?
No. Every tool runs inside your browser using JavaScript. Your files are read from your device, processed in memory, and the result is saved back to your device. Nothing is sent to our server or anyone else.
Is it really free and unlimited?
Every tool is free, with no account, watermark, daily limit or paywall. The site is funded by advertising. Free tools will stay free.
Do I need an account?
No. There are no accounts. Nothing you do on the site is saved between visits.
Does it work offline?
Once a tool page has fully loaded, it keeps working without an internet connection, because all processing happens in your browser. Reloading the page needs a connection.
Which browsers and devices are supported?
Current versions of Chrome, Edge, Firefox and Safari on Windows, Mac, Linux, Android and iPhone. Very old browsers may not support some formats. If something fails, updating your browser usually fixes it.
Why are there ads?
Advertising pays for the site so every tool can stay free and unlimited. Ads are clearly labelled and kept away from tool controls and results.
What are the file size limits?
There is no daily usage limit. Per-file limits protect your device memory: images up to 30 MB and 50 megapixels, PDFs up to 100 MB each and 300 MB in total when merging. Each tool lists its limits.
Something is not working. What should I do?
Refresh the page and make sure your browser is up to date. If the problem continues, email us with the tool name, your browser and device, and what happened. Please do not attach private files.
Can you add a tool I need?
Tell us what task you are trying to do by email. We add tools when we can make them work reliably in the browser.
Is it safe for confidential documents?
The tools are designed so that files never leave your device, which is safer than uploading them. As with any website, use an up-to-date browser and avoid public or shared computers for sensitive files.
Can I use the tools for work or commercial projects?
Yes, for personal and commercial purposes. You are responsible for having the right to use the files you process. See the terms of use.
Can I rely on the calculators for financial or legal decisions?
They are accurate for the formulas they describe, but they are for information only. Confirm important figures with your bank, accountant, tax authority or lawyer. See the disclaimer.