No. These tools read and process files in your browser.

Do I need to sign in?

Local tools work without an account.

Is there a size limit?

Keep files under 50 MB and PDFs under 80 pages so the browser stays stable.

Scale a video by width.

Or drop files here

Click to choose a file, or drop it here. Nothing is uploaded.

Adjust options if needed, then run. All work stays on this device.

Preview, then download. Nothing is kept on a server after you leave.