JustPDF is a free, browser-based PDF toolkit. Every tool — merging, compressing, converting, signing, and more — runs entirely on your own device. Unlike most online PDF services, your documents are never uploaded to a server, never stored in the cloud, and never seen by anyone but you. That makes JustPDF a safe choice for contracts, tax forms, medical records, and any other sensitive document.

Because the processing happens locally with modern web technology (JavaScript and WebAssembly), there is no upload wait and no file size queue — most operations finish in seconds. You do not need an account, and the free tier never adds watermarks to your files.

All 17 PDF tools, free

Organize PDFs

Merge PDF — Combine multiple PDFs into one document.
Split PDF — Extract pages or split a PDF into separate files.
Compress PDF — Reduce PDF file size without losing quality.
Rotate PDF — Fix page orientation in seconds.
Flatten PDF — Lock form fields and remove interactive layers.
Unlock PDF — Remove a password you already know.

Convert PDFs

PDF to Word — Turn a PDF into an editable Word document.
Word to PDF — Convert DOCX files to clean PDFs.
PDF to JPG — Export each page as a high-quality image.
JPG to PDF — Combine images into a single PDF.
PDF to Excel — Pull tables out of a PDF into a spreadsheet.
WebP to PDF — Convert modern WebP images to PDF.
HEIC to PDF — Turn iPhone photos into a PDF.
PDF to Grayscale — Convert color PDFs to black and white.

Edit & enhance

Sign PDF — Add your signature without printing.
Chat with PDF — Ask questions about a document with AI.
OCR PDF — Make scanned documents searchable.

Why choose a browser-based PDF tool?

Privacy by design. Files are processed on your device, so there is no server that could leak, retain, or scan your documents.
Speed. No upload-and-wait. Your computer does the work and the result downloads instantly.
No account, no limits on trust. Start using any tool immediately — no email, no sign-up, no credit card.
Works offline. Once the page loads, you can disconnect and keep working.

If you currently use Smallpdf, iLovePDF, or PDF24, see how JustPDF compares on privacy, features, and price.

Frequently asked questions

Are JustPDF's tools really free?

Yes. Every tool is free to use with no account, including 3 operations per day with no watermarks. JustPDF Pro removes the daily limit for $4/month.

Do my files get uploaded to a server?

No. JustPDF processes PDFs entirely in your browser using JavaScript and WebAssembly. Your files never leave your device — you can verify this by opening your browser's Network tab while using any tool.

Do I need to create an account?

No account is required to use any tool. You only need an account if you upgrade to Pro for unlimited daily use.

Does JustPDF work offline?

Yes. After the page loads, the tools keep working even if you disconnect from the internet, because all processing happens locally.

Is JustPDF a good alternative to Smallpdf or iLovePDF?

It is — especially if privacy matters to you. Unlike Smallpdf and iLovePDF, which upload your files to their servers, JustPDF keeps everything on your device and costs less for unlimited use.