Office & Productivity

Diigo is a powerful research tool and a knowledge-sharing community

Keep up with the topics and trends you care about, without the overwhelm. Make your research workflow efficient and enjoyable. Experience the power of RSS.

Free online OCR service that allows to convert scanned images, faxes, screenshots, PDF documents and ebooks to text, can process 122 languages and supports layout analysis

Best free OCR API, Online OCR and Searchable PDF (Sandwich PDF) Service. Try instantly, no registration required. Available as On-Premise OCR Software, too. The Cloud OCR API is a REST-based Web API to extract text from images and convert scans to searchable PDF. Free OCR software as a hosted service and as download.

Free online PDF editor and PDF converter with ability to edit, merge und protect PDF files.

PDF editing made easy. Discover Soda PDF, the easy-to-use software complete with editing tools for modifying PDF files your way. Try it for FREE today!

Easy, pleasant and productive PDF editor. Split, merge or convert PDF to images, extract pages, alternate scans and many more.

Graphext is a no-code platform for business intelligence helping you to build powerful data science projects.

A hackable text editor for the 21st Century

Share code in real-time with developers in your browser. An online code editor for interviews, troubleshooting, teaching.

The leading visual marketing platform that allows you to plan, schedule, publish, and measure the results of your instagram and social media posts.

Collaborate for free with online versions of Microsoft Word, PowerPoint, Excel, and OneNote. Save documents, spreadsheets, and presentations online, in OneDrive. Share them with others and work together at the same time.

Pdfcrowd is a Web/HTML to PDF online service. Convert HTML to PDF online in the browser or in your PHP, Python, Ruby, .NET, Java apps via the REST API.

Edit PDF files with PDF Candy - a free online PDF editor. Convert PDF to Word, PDF to JPG, merge PDF, split PDF, compress PDF, etc.

iLovePDF is an online service to work with PDF files completely free and easy to use. Merge PDF, split PDF, compress PDF, office to PDF, PDF to JPG and more!

Smallpdf - the platform that makes it super easy to convert and edit all your PDF files. Solving all your PDF problems in one place - and yes, free.

Mendeley is a free reference manager and an academic social network. Manage your research, showcase your work, connect and collaborate with over five million researchers worldwide.

Collaborative Calculation and Data Science

An online LaTeX editor that's easy to use. No installation, real-time collaboration, version control, hundreds of LaTeX templates, and more.

An online LaTeX editor that just works. No installation, live preview, and sharing. Get stuff done with or without an Internet connection.

Straw Poll is the best place to create instant, real-time polls for free.