CalcForge records 31,360 monthly visits with -4.8% month-over-month growth and Free, Paid pricing. Impeccable records 1,038,637 monthly visits with +8.2% growth and Free pricing.
Open-source engineering calculators for civil and structural design
Give your coding agent real design judgment
| Dimension / Metric | | |
|---|---|---|
| Official Domain | calcforge.com | impeccable.style |
| Pricing Model | Free, Paid | Free |
| Monthly Visits | 31.36K (31,360) | 1.04M (1,038,637) |
| MoM Traffic Delta | -1.56K (-4.8%) | +78.43K (+8.2%) |
| Primary Market & Share | 🇮🇳 India (16.1%) | 🇺🇸 United States (22.4%) |
| Direct Visits / mo | 12.46K | 464.8K |
| User Rating | 4.3 | 4.6 |
| Supported Platforms | Website | Website |
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.
Give your coding agent real design judgment
A structured skill set that agents load to make typographic, layout, spacing, and color decisions with design intent rather than defaults.
Identifies recurring AI-generated UI clichés such as chip overload, card-in-card nesting, weak hierarchy, and vague calls to action.
Helps the agent stay consistent with the tokens, components, and conventions of your existing design system.
Bakes in contrast, focus, semantic structure, and responsive behavior so built interfaces hold up across devices and audiences.
Provides a full AI-native code editor experience, but requires manual prompt rules or extensions to enforce design discipline.
Provides a full AI-native code editor experience, but requires manual prompt rules or extensions to enforce design discipline.
SpecialistProvides agentic multi-file coding workflows, but requires custom instructions to enforce specific UI guidelines.
SpecialistProvides agentic multi-file coding workflows, but requires custom instructions to enforce specific UI guidelines.
SpecialistOrchestrates multiple coding agents from one interface, but does not provide built-in design compliance checks.
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
SpecialistEmbeds AI copilots into web apps, but focuses on component integration rather than developer design rules.
SpecialistEmbeds AI copilots into web apps, but focuses on component integration rather than developer design rules.
Free / Open-sourceEdits code directly in your local git repository via CLI, but lacks dedicated frontend design system discipline rules.
Free / Open-sourceEdits code directly in your local git repository via CLI, but lacks dedicated frontend design system discipline rules.
Free / Open-sourceFree practical deep learning courses, research and open-source libraries
Free / Open-sourceOpen-source database of AI models, prices and capabilities
Free / Open-sourceOpen-source database of AI models, prices and capabilities
SpecialistActs as a model-agnostic coding assistant, but lacks specialized UI/UX design discipline rule packs.
Free / Open-sourceFree open course for prompt engineering and AI security
Free / Open-sourceFree open course for prompt engineering and AI security
Free / Open-sourceEnforces strict coding rulesets on AI agents, but focuses on backend maintainability rather than specific UI design systems.
Free / Open-sourceEnforces strict coding rulesets on AI agents, but focuses on backend maintainability rather than specific UI design systems.
Creates multi-screen UI designs and connects to IDE agents, but operates as a standalone design platform rather than an inline ruleset.
Creates multi-screen UI designs and connects to IDE agents, but operates as a standalone design platform rather than an inline ruleset.
