Free tools for research, references, and writing

A practical, free toolkit for researchers.

Reference management:

• Zotero — free, open-source, excellent for citations.

Writing & collaboration:

• Overleaf for LaTeX (great for maths-heavy work).
• Shared docs for co-authoring across time zones.

Data:

• Free tiers of statistics tools, and R / Python (both free) for analysis.

What free tools power your workflow? Add them below for the next scholar.