File tools that keep your files on your device
Each tool here runs inside your browser tab. The files you open are read and changed on your own computer, and none of them is uploaded.
Images
- Convert imageSwitch between JPG, PNG, WebP and AVIF
- PNG to JPGSmaller files from PNG photos
- WebP to JPGOpen WebP images anywhere
- HEIC to JPGTurn iPhone photos into JPG
- JPG to WebPLighter images for your website
- Compress imageShrink photos for email and upload forms
- Resize imageSet exact pixel sizes or a percentage
Spreadsheets and data
How can it work without uploading?
Your browser can already read files and run code, so the page brings the code to your file instead of sending your file to a server. When you open a PDF here, it is read into memory in this tab, changed there, and handed back to you as a download. Close the tab and it is gone. You can check this yourself: open your browser's developer tools, switch to the Network tab and watch while you use a tool. No file goes out.