basetools

Free PDF and image tools, right in your browser

Shrink a photo, merge PDFs, crop, compress, remove a background — each tool below does one specific job, with nothing to install and no account needed.

Featured

Image

PDF

Text

Codes

How it works

None of these tools has a processing server. Here's what actually happens when you open a file:

  1. The file is read with the browser's own file API (File/FileReader) — not uploaded anywhere.
  2. It's processed in memory, on your device, using canvas or WebAssembly.
  3. The result is generated locally and is ready to download. No network request carries the file's content at any point in the process.

You can verify it offline

Turn on airplane mode and use any tool — it keeps working normally, because there's nothing on the other end waiting for the file to arrive.

Another way to check: open developer tools (F12), go to the Network tab, and watch the requests while you use the tool — none of them carry the file's content.

What this means in practice

  • Nothing you process is stored or kept around after you close the tab.
  • There's no account, login, or sign-up.
  • There's no record of what was processed.

2 tools need internet the first time you use them

Remove image background and OCR for images and scanned PDFs download a model or engine from the site's own server, once. The file you process still never leaves your browser — only that first download depends on your connection.