4 Free and Open-source Research Apps for macOS (Intel and Apple Silicon)

1- PDF4Teachers

The PDF Editor That Every Teacher Should Have

PDF4Teachers is a free open-source app specifically designed for teachers to annotate assessments returned in PDF with high productivity. As of V1.1.0, PDF4Teachers is now fully translated into English, making it even more accessible.

PDF4Teachers offers a range of tools for productive PDF editing, including annotation and correction of assessments. What's more, edits are saved separately from PDF files and saved annotations can be quickly inserted for future use. Documents are managed as a set and can be exported as new PDF files with annotations.

Read about PDF4Teachers 's features, license, platforms, and more.

2- Marp

Markdown Presentation Ecosystem

Marp (also known as the Markdown Presentation Ecosystem) provides an intuitive experience for creating beautiful slide decks. You only have to focus on writing your story in a Markdown document.

Read about Marp 's features, license, platforms, and more.

3- Skim

skimPDF reader and note-taking solution

Skim is a PDF reader and note-taker for macOS (10.7 and later). It's feature-rich program and very useful for researchers as it include notes, highlighting, bookmarks, editing tools and LaTeX support.

Read about Skim 's features, license, platforms, and more.

4- TeXLite

LaTeX editor

TeXLite is a lightweight, open-source tool for writing standard LaTeX documents cleanly using Markdown-style syntax. It's all about writing your LaTeX documents without distractions or overhead.

Read about TeXLite 's features, license, platforms, and more.