31 Free Online PDF Tools

Convert, organize, compress, protect, edit, sign, OCR, compare and summarize PDF documents from one mobile-friendly toolkit.

Private processing No signup Mobile friendly Free

Convert to PDF

7 tools

Convert from PDF

5 tools

Organize PDF pages

7 tools

Optimize, protect and edit

9 tools

OCR, compare and summarize

3 tools

Private browser-based document processing

Most tools use JavaScript document libraries inside your browser, so the selected document stays on your device while it is read, converted or rebuilt.

The HTML-to-PDF public URL option is the one exception: it uses a restricted server fetcher to retrieve only the webpage address you explicitly enter. Uploaded HTML files and pasted HTML still process in the browser.

Honest conversion expectations

PDF is a fixed-layout format, while Word, Excel and PowerPoint use editable structures. Cross-format conversion preserves useful content but complex layouts may differ.

  • Scanned PDFs should go through OCR before text extraction, comparison or summarization.
  • Visual editing, encryption and grayscale tools may flatten interactive PDF content.
  • Password removal requires the correct current password and authorization.

PDF tools FAQ

Do I need to create an account?

No. Every tool in this section works without registration.

Are my selected files stored?

No. Selected PDFs, Office files and images are processed in the browser and are cleared when the page is refreshed or closed.

Why can Office conversions look different?

Word, Excel and PowerPoint contain application-specific layout instructions. Browser conversion preserves common text, tables and images but may approximate advanced formatting.

Which tools flatten the PDF?

Protect PDF, Grayscale PDF, Edit PDF and some unlock or visual-conversion workflows rebuild pages as images. Their tool pages clearly explain what selectable or interactive content may be lost.

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