PDF Tools That Don't Save Your Files
Secure, browser-based PDF processing. Your documents never leave your browser.
Our Utility Toolkit
32 professional tools · 0 server uploads
Merge PDFs
Combine multiple PDFs into one
Split PDF
Extract the pages you need
Compress
Shrink file size, keep quality
Edit PDF
PROAdd text, images, and annotations
Protect
Password-protect your documents
Unlock
Remove password protection
Sign PDF
Add your signature to any document
PDF to JPG
Convert pages into PNG or JPG images
Word to PDF
PROConvert DOCX files to PDF
Excel to PDF
PROConvert spreadsheets to PDF
Reorder
Rearrange or delete pages
Rotate
Fix orientation and scans
Three things most PDF tools won't tell you
They store your data
Most online tools upload your sensitive documents to their servers. We process everything locally in your browser.
Privacy is an 'Add-on'
Most tools sell security as a premium add-on. With PDFCub, privacy is built into the core engine from the start.
Hidden subscriptions
Essential tools should be free to use. No credit card for the core set of 28 tools.
Privacy lives in the foundation.
When you drop a file into PDFCub, your browser's local engine reads it. There's no database of your documents because no server ever touches them.
- No data retention policy needed.
- GDPR & HIPAA compliant by design.
All the PDF tools you need. None of the uploads.
We got tired of PDF sites that make you hand over private documents to a stranger's server just to merge two files. So we built PDFCub to work the other way around. Merging, compressing, signing, converting, even the AI tools, all of it runs right inside your browser, so your files never leave your device. The free tools come without watermarks, there's no account to sign up for, and if you ever hit a snag, a real person is here to help sort it out.
What users are saying about PDFCub
Finally, a PDF tool I trust
Files stay in my browser. No upload, no account. Merged 15 PDFs in seconds.
Sarah K...
Replaced my paid subscription
Does everything iLovePDF does, completely free, and my documents stay private. Incredible.
Marco T...
Fast, private, genuinely free
No ads, no hidden fees. Compressed a 40 MB PDF without it ever touching a server.
James R...
Free tools. No tricks.
Stop worrying about data breaches. Start using the most secure PDF toolkit on the web. No registration required for basic features.