Best Free Online PDF Tools in 2026

Need to merge PDFs, compress a document, or extract text from a PDF? There are dozens of free tools available — but they differ dramatically in privacy, speed, and limitations.

We compared 10 popular free PDF tools to help you choose the right one. The biggest question: do they upload your files to a server, or process them locally?

1. ClientPDF — Best for Privacy (No File Uploads)

ClientPDF is a free, open-source PDF toolkit that processes files 100% in your browser. Nothing is ever uploaded to a server. Your PDFs never leave your device.

• Tools: Merge, split, compress, PDF to text, JPG/PNG to PDF, PDF to JPG, rotate, delete pages, reorder, watermark, sign, edit
• Privacy: 100% client-side — no uploads ever
• Price: Completely free, no account, no limits
• Best for: Confidential documents, privacy-conscious users, offline-capable use

Learn more about ClientPDF's privacy-first approach →

2. iLovePDF — Most Popular

iLovePDF is one of the most widely used online PDF toolkits with 25+ tools including OCR, PDF editing, and e-signatures. Files are uploaded to iLovePDF's servers for processing, then deleted after a few hours.

• Tools: 25+ including OCR, editing, and form filling
• Privacy: Server-side processing (files uploaded)
• Price: Free with limits; Premium from $7/month
• Best for: Users who need OCR or advanced editing

3. Smallpdf — Best User Interface

Smallpdf has a polished, modern interface and covers most common PDF tasks. The free tier is limited to 2 tasks per day, which can be frustrating.

• Tools: 20+ tools including e-sign and PDF editing
• Privacy: Server-side processing
• Price: Free limited to 2 tasks/day; Pro from $12/month
• Best for: Users who value a polished UI and don't mind daily limits

4. Adobe Acrobat Online — Best Brand Name

Adobe Acrobat Online brings basic PDF tools from the creators of the PDF format. Reliable but expensive beyond the free tier, and free usage requires an Adobe account.

• Tools: Merge, split, compress, convert, sign
• Privacy: Server-side processing by Adobe
• Price: Free tier requires account; Acrobat Pro from $20/month
• Best for: Users already in the Adobe ecosystem

5. PDF24 — Best Free Unlimited (Server-Based)

PDF24 offers 30+ tools with no daily task limits on the free tier — a rarity. All processing happens on their servers. Based in Germany, so subject to GDPR.

• Tools: 30+ tools including OCR and PDF comparison
• Privacy: Server-side processing (GDPR-compliant)
• Price: Completely free
• Best for: High-volume users who don't need local processing

6. PDF Candy — Simple & Clean

PDF Candy offers a straightforward interface with 40+ conversion and editing tools. The free tier has file size and task limits.

• Tools: 40+ tools including OCR and metadata editing
• Privacy: Server-side processing
• Price: Free with limits; Premium from $6/month
• Best for: Users who need a wide variety of conversion options

7. Sejda — Generous Free Tier

Sejda offers a solid free tier with 3 tasks per hour and supports files up to 200 pages. Some tools have a client-side option, though most still use servers.

• Tools: 30+ tools including PDF editing and forms
• Privacy: Mostly server-side (some client-side options)
• Price: Free (3 tasks/hour); Desktop from $7.95/week
• Best for: Users who need occasional PDF editing

8. PDF2Go — Online PDF Editor

PDF2Go focuses on PDF editing with annotation and text insertion tools. Free tier has file size limits and ads.

• Tools: 20+ tools with focus on editing and annotation
• Privacy: Server-side processing
• Price: Free with ads; Premium from $6.50/month
• Best for: Users who need PDF annotation features

9. DocHub — Best for Collaboration

DocHub is a cloud-based document signing and editing platform. Good for teams but requires an account and uploads all files.

• Tools: Edit, sign, annotate, share, create templates
• Privacy: Cloud-based (files stored on servers)
• Price: Free for 5 documents/month; Pro from $10/month
• Best for: Teams that need document collaboration and signing

10. FreePDFConvert — Basic Conversions

FreePDFConvert (by Soda PDF) offers basic PDF conversion tools. The free tier is limited and the site pushes you toward their paid desktop app.

• Tools: Basic convert, merge, split, compress
• Privacy: Server-side processing
• Price: Free with limits; paid plans from $10/month
• Best for: Quick one-off conversions

Comparison Table

Which PDF Tool Should You Use?

It depends on what matters most to you:

• Privacy is critical? → ClientPDF is the only tool here that never uploads your files. Everything runs in your browser.
• Need OCR or advanced editing? → iLovePDF or Smallpdf offer server-powered features that client-side tools can't match yet.
• High volume, no budget? → PDF24 offers unlimited free tools (server-based).
• Need collaboration? → DocHub for team document workflows.

For most everyday PDF tasks — merging, splitting, compressing, extracting text — ClientPDF handles it all without ever touching your files. No uploads, no accounts, no limits.