DEV Community: cc cc

Free Developer Tools Network - References, Calculators, Quizzes & More

cc cc — Tue, 16 Jun 2026 13:03:01 +0000

Free online developer tools and references network. All built with React + TypeScript + Vite, deployed on Cloudflare.

Developer References:

CSS Reference: https://csskey.com (1,100+ CSS properties)
Python Reference: https://python.csskey.com (1,279 pages)
JS Reference: https://js.csskey.com (1,345 pages)
SQL Reference: https://sql.csskey.com (816 pages)
HTML Reference Hub: https://html.csskey.com (1,250 pages)
Linux Reference: https://linux.csskey.com (363 pages)
Emoji Reference: https://emoji.csskey.com (200+ emojis)

Online Tools:

KitCraft: https://tools.aiprh.com (122 tools)
CalcKit: https://calc.csskey.com (100+ calculators)
AI Tools: https://ai.csskey.com (40+ AI utilities)
QuizHub: https://quiz.csskey.com (quizzes and personality tests)

Creative Tools:

Font Fusion: https://font.csskey.com (Google Font pairings)
Spark: https://spark.csskey.com (creative toolbox)
Design Prompt Vault: https://prompt.csskey.com (AI prompts)
Mix: https://mix.csskey.com (emoji mashup creator)

Drawing Tools:

Draw Perfect: https://draw.csskey.com (drawing exercises and challenges)

Free Developer Tools Network - 14 Sites Built with React + TypeScript

cc cc — Tue, 16 Jun 2026 13:00:43 +0000

I built a network of free developer tools and reference sites. All client-side rendered SPAs deployed on Cloudflare.

Technical Highlights:

Server-side canonical injection via Cloudflare Functions
Organization, WebSite, FAQPage, HowTo structured data
Dynamic content templates generating 200+ unique words per page
React 19 + TypeScript 6 + Vite 8

Reference Sites:

CSS Reference: https://csskey.com
Python Reference: https://python.csskey.com
JS Reference: https://js.csskey.com
SQL Reference: https://sql.csskey.com
HTML Reference Hub: https://html.csskey.com
Linux Reference: https://linux.csskey.com
Emoji Reference: https://emoji.csskey.com

Tool Sites:

KitCraft: https://tools.aiprh.com
CalcKit: https://calc.csskey.com
AI Tools: https://ai.csskey.com
Font Fusion: https://font.csskey.com
Spark: https://spark.csskey.com
Design Prompt Vault: https://prompt.csskey.com
Mix.csskey.com: https://mix.csskey.com

I Built 14 Free Developer Reference Sites

cc cc — Tue, 16 Jun 2026 08:46:43 +0000

The Journey

I built CSS Reference as a simple reference site. It grew into 14 projects.

The Stack: React 19 + TypeScript 6 + Vite 8 + Cloudflare Pages + Bun. All SPAs.

SEO Lessons

SPAs need server-side canonical injection via Cloudflare Functions. Structured data (FAQ, HowTo, Breadcrumb, Organization) measurably improves CTR. Content depth of 200+ words per page is essential. Backlinks are the real ranking factor.