PDFkoi icon
PDFkoi icon

PDFkoi

Free, privacy-first collection of 95+ PDF tools that process files entirely in your browser using WebAssembly. No uploads required - your documents never leave your device.

Compress PDF for email, uploads, and sharing. Reduce PDF file size online while keeping text clear and documents easy to read.

Cost / License

Platforms

  • Online
PDFkoi screenshot 1
PDFkoi alternatives  
0likes
51alternatives
0articles
Save

Features

Properties

  1.  Lightweight
  2.  Privacy focused

Features

  1.  Works Offline
  2.  Split PDF files
  3.  End-to-End Encryption
  4.  File Tagging
  5.  Combine PDF
  6.  PDF encryption
  7.  WYSIWYG Support
  8.  Fill PDF Forms
  9.  Sign PDF files
  10.  PDF compression
  11.  No Tracking
  12.  OCR
  13.  PDF annotation
  14.  No registration required

 Tags

PDFkoi News & Activities

Highlights All activities

Recent activities

PDFkoi information

AlternativeTo Categories

Office & Productivity, Security & Privacy, File Management

GitHub repository

  •  6 Stars
  •  3 Forks
  •  0 Open Issues
  •   Updated  
View on GitHub

Popular alternatives

View all
PDFkoi was added to AlternativeTo by pdfkoivip-dev on and this page was last updated .

No comments or reviews, maybe you want to be first?

Official Links

AppStores & Other Links

What is PDFkoi?

PDFkoi is a free, open-source collection of 95+ PDF tools that processes files entirely in your browser using WebAssembly technology. Unlike traditional online PDF services, your documents never leave your device, ensuring maximum privacy and security.

Key Features: • 100% client-side processing - files are never uploaded to any server • 95+ tools covering all PDF operations: merge, split, compress, convert, edit, sign, encrypt, OCR, and more • Visual workflow editor for creating automated batch processing pipelines • Multi-language support in 8 languages (English, Chinese, Japanese, Korean, Spanish, French, German, Portuguese) • No registration required • No file size limits or daily usage restrictions • No watermarks on processed files • Completely free and open-source (AGPL-3.0 license)

Built with Next.js, React, TypeScript, and WebAssembly. Perfect for users who handle sensitive documents like legal files, financial records, or personal information and value privacy.

Technical highlights: Uses PDF.js, pdf-lib, and PyMuPDF (compiled to WebAssembly) for comprehensive PDF manipulation directly in the browser.