Convlab Studio
100% Browser-Based — No Upload Required

Free PDF Tools That Respect Your Privacy

A growing collection of browser-based PDF utilities. Unlock, merge, and compress PDF files without uploading them to any server. Your data stays on your device — always.

Why Use Our PDF Tools?

Every tool is designed with privacy and simplicity in mind. No account, no uploads, no hidden fees.

Privacy First

All processing happens in your browser. Your files never touch our servers.

Instant Processing

No waiting in queues. Files process at the speed of your own device.

Completely Free

No credit card, no registration, no watermarks. Just free utilities.

Frequently Asked Questions

Are these PDF tools free to use?

Yes. All PDF tools on Convlab Studio are completely free with no watermarks, no file limits, and no registration required.

Do you upload or store my PDF files?

No. Every tool processes your files locally in your browser. Your documents never leave your device and are never uploaded to any server.

What PDF tools are available?

We offer four tools: PDF Unlock (remove passwords), PDF Merger (combine documents), PDF Splitter (separate pages), and PDF Compressor (reduce file size).

Is there a file size limit?

Each tool supports files up to 50MB for reliable browser performance. Larger files may still work but depend on your device's available memory.

Do you plan to add more PDF tools?

Yes. We are actively building new tools. Check back soon for features like PDF to Word conversion, PDF editing, and more.