Free / Open-sourceSearch and study millions of public SKILL.md agent skills
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
Bitbucket records 13,080,878 monthly visits with -1.2% month-over-month growth and Freemium pricing. CalcForge records 31,360 monthly visits with -4.8% growth and Free, Paid pricing.
Open-source engineering calculators for civil and structural design
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | bitbucket.org | calcforge.com |
| Pricing Model | Freemium | Free, Paid |
| Monthly Visits | 13.08M (13,080,878) | 31.36K (31,360) |
| MoM Traffic Delta | -153.21K (-1.2%) | -1.56K (-4.8%) |
| Primary Market & Share | 🇺🇸 United States (21.7%) | 🇮🇳 India (16.1%) |
| Direct Visits / mo | 10.28M | 12.46K |
| User Rating | 4.3 | 4.3 |
| Supported Platforms | Website | Website |

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Open-source engineering calculators for civil and structural design
Structural, geotechnical, tunnelling and contractor tools available free and open source on GitHub.
Searchable construction datasets covering high-rise buildings, bridges, tunnels, dams and housing.
Registered users get calculation workings, bending/shear/deflection diagrams and PDF export.
Four project-based pathways in Python, AI for construction, AI governance and building AI agents.
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