Truly privacy-first tools

Your files stay on your device: local in-browser processing, no account, no trackers, no data collection.

No upload, no storage

LocalOptim processes your PDFs and images directly in your browser. Nothing is sent to a server.

  • No file uploads
  • No server-side storage
  • No account required
  • No ad tracking

Simple, fast tools

Compress, convert, rotate, merge… use the tool, download the result, done.

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How it works

Processing runs on your machine using browser APIs (WebAssembly / Canvas depending on the tool).

  1. Add a file (drag & drop).
  2. Adjust options if needed.
  3. Your browser processes locally.
  4. Download the result.

Transparency

If a tool needs an external resource (e.g., a CDN), it’s visible in the source and kept to the minimum.

At a glance

  • Local in-browser processing
  • No upload, no storage
  • No account
  • No file collection
  • GDPR-friendly (privacy by design)

Keywords

Local PDF tools, no upload, no server, privacy-first, GDPR.

FAQ — Privacy-first

No. Processing is local, no file is uploaded.

Yes. That’s exactly the point: your files stay on your device.

Because there’s no server transfer, so far fewer risks (leaks, retention, analysis).

The limit mostly depends on your device. There’s no server quota.

Yes: no account, no file storage, no personal data collected.

In practice, yes after the page is loaded. Some browsers may still limit offline mode depending on caching.