Icon licenses explained (MIT, Apache, CC, OFL)
“Free” icons still come with licences, and they differ. Most open-source icon sets are very permissive, but a few require attribution. Here's what the common licences actually ask of you.
The usual suspects
| License | Commercial use | Attribution | Notes |
|---|---|---|---|
| MIT | Yes | Keep licence text | Very permissive; common for icon code |
| Apache-2.0 | Yes | Keep notices | Like MIT plus a patent grant |
| CC BY 4.0 | Yes | Yes, credit required | Common for designed icon sets |
| CC0 / Public Domain | Yes | None | Do anything, no credit needed |
| SIL OFL | Yes | Keep licence; don't sell the font alone | Common for icon fonts |
What to actually do
- Check each set's licence (IconStash shows it on every pack page).
- If it's CC BY, credit the author where practical (footer, about page, or file).
- Keep the licence text with the assets when redistributing.
- Don't assume “free to download” means “no conditions.”
This is general information, not legal advice. When in doubt about a specific project, consult the licence text or a professional.
Frequently asked questions
Do free icons need attribution?
Some do (CC BY), many don't (MIT, CC0). Always check the specific set's licence.
Can I use open-source icons commercially?
Almost always yes — the common icon licences permit commercial use, sometimes with attribution.