Matching Project Types to Safe Library Choices

Recommended license tiers and verified SVG Nexus libraries by business model
Project / Distribution ModelPreferred SPDX TiersVerified SVG Nexus Libraries
Proprietary SaaS & Enterprise Web AppsMIT, ISC, Apache-2.0, CC0-1.0Lucide (ISC), Tabler (MIT), Phosphor (MIT), Heroicons (MIT), Material (Apache-2.0), IconPark (Apache-2.0)
Client Agency Websites (No Footer Clutter)CC0-1.0, MIT, ISCMaki (CC0), Osmic (CC0), Phosphor (MIT), Bootstrap (MIT), 3D Vector Icons (MIT) + notice in docs/credits
Commercial / Paid Website TemplatesCC0-1.0, MIT, ISC (preserve notices)Lucide, Tabler, Heroicons, Bytesize, Fluent UI Emoji (avoid CC BY-ND; keep MIT/ISC notices intact)
Open Documentation, Editorial & Homelab PortalsAny above + CC BY 4.0 / CC BY-SA 4.0selfh.st Icons (CC BY 4.0), Twemoji (CC BY 4.0), OpenMoji (CC BY-SA 4.0) with clear page attribution

Why Mixing Licenses Inside One Sprite Sheet Complicates Audits

When you combine 20 MIT icons and 2 CC BY-SA 4.0 icons into a single modified icons-sprite.svg file, the ShareAlike requirement can attach to the adapted sprite compilation! Keep permissive UI sprites (MIT / ISC / Apache-2.0 / CC0) cleanly separated from CC BY or CC BY-SA assets using the license facet on the SVG Nexus library browser.