# Sciicons

> Free scientific SVG icon library for researchers, journals, posters, and slides.
> Site: https://sciicons.com/

## Summary
Sciicons hosts publication-ready scientific vector icons. Browse the library, filter by category, then download SVG or copy SVG. Download and copy do not require sign-in. Likes require an account.

## License
Check the license on each icon page. Many icons are **CC0**. Some are courtesy-licensed (for example NIH BioArt / NIAID Visual & Medical Arts, Servier Medical Art). Cite courtesy/source when known.

## Key pages
- Home / library: https://sciicons.com/
- Molecules (PubChem 2D/3D): https://sciicons.com/#/molecules
- Blog: https://sciicons.com/#/blog
- Icon requests: https://sciicons.com/#/requests
- Auth notes: https://sciicons.com/auth.md

## Markdown twins
- https://sciicons.com/index.md
- https://sciicons.com/blog.md
- https://sciicons.com/molecules.md
- https://sciicons.com/requests.md
- Catalog: https://sciicons.com/api/md/_catalog

## AI / crawler files
- This file: https://sciicons.com/llms.txt
- Full catalog: https://sciicons.com/llms-full.txt
- Short AI note: https://sciicons.com/ai.txt
- Legacy alias: https://sciicons.com/llm.txt
- Robots: https://sciicons.com/robots.txt
- Sitemap (every icon slug): https://sciicons.com/sitemap.xml
- API catalog: https://sciicons.com/.well-known/api-catalog

## Icon URLs
Each icon has a readable deep link from its title:
`https://sciicons.com/#/icon/{title-slug}`

Example: `https://sciicons.com/#/icon/acinus-pancreas`

## How to use icons
1. Browse or search https://sciicons.com/
2. Filter by Subject, Category, License, or Courtesy.
3. Download SVG or Copy SVG (no sign-in).
4. Paste into Illustrator, Affinity, PowerPoint, or other vector tools.

## Optional tools
- Molecules: search a compound name to render PubChem 2D SVG and a 3D ball-and-stick view.
- Blog: figure-design guides (color, TikZ, 2D vs 3D, CRISPR).

## Contact
Missing an icon? https://sciicons.com/#/requests