Angular 21 Developer Platform

Learn. Build.
Architect. Ship.

Interactive tools, architecture patterns, cheat sheets, and DevOps services for Angular 21. From your first signal() to production infrastructure.

01 · Learn

Get Up to Speed

50 snippets, flashcard trainer, cheat sheets. Go from "what changed?" to confident in a weekend.

Free + $10
02 · Build

Start Shipping

SDK reference, project scaffolder, migration assistant. Stop researching, start coding.

$10 Toolkit
03 · Architect

Design It Right

Headless components, signal composition, layered architecture. Senior-level patterns.

$49 Pro
04 · Scale

Go to Production

VPS setup, Docker, CI/CD, monitoring. We handle the infrastructure so you ship the product.

Services
Products
Pick Your Level.

Every tier builds on the one before it. Start where you are, upgrade when you're ready.

Starter
Angular 21 Toolkit
Everything you need to learn Angular 21's new features and start building.
$10
one-time · v21.x updates
  • Complete Cheat Sheet — 50 snippets, 10 categories
  • SDK Reference — interactive code explorer
  • Flashcard Trainer — quiz every concept
  • Project Scaffolder — generate configs
  • Migration Assistant — Zone, Forms, Vitest
  • 6 Markdown cheat sheets
  • Works offline in any browser
Get Starter — $10
Services
Cloud Managed DevOps
We set up your production infrastructure. You focus on building your product.
$299+
per project · retainer available
  • VPS Starter — single app deploy ($299)
  • Production Pro — Docker + CI/CD ($599)
  • Hourly DevOps — $35/hr
  • SSL, DNS, Nginx, monitoring
  • Monthly retainer — $149/mo
  • Free 30-min discovery call
Explore Services
Free Resources
Start Here. Free.

Learn why Angular 21 matters and explore interactive demos — no purchase required.

⚠️

The Angular 21 Shift

What died, what replaced it, and why your codebase needs to migrate. Before/after code comparisons.

FREE
Read the Shift →
🎬

Marketing Videos

Cinematic product showcase with the coffee cup logo. Share on social media or embed anywhere.

FREE
Watch →
🏗️

Architecture Preview

Explore the 4-layer headless architecture with signal composition and zoneless patterns.

FREE PREVIEW
Explore architect →
🔄

Code Evolution

See how Angular patterns evolve across 4 skill levels: Normal → Professional → Elite → Guru.

COMING SOON
Preview →
📦

CRUD Evolution

Complete CRUD patterns at 4 skill levels. Models, services, components, routing — from basic to architect.

COMING SOON
Preview →

Control Flow Mastery

@if, @for, @switch, @defer — every trigger, every pattern, every migration from *ngIf/*ngFor.

COMING SOON
Preview →
Why CozyDevKit
Built by a Dev
Who Ships.

Not scraped from docs. Not AI-generated slop. Every tool, every pattern, every migration path was built and tested in real projects.

01

Works Offline

Every tool is a standalone HTML file. Open in your browser — no npm, no server, no build step. Works on a plane.

02

Architecture, Not Templates

We teach you how to think about Angular 21 — headless components, signal composition, layered architecture. Not just copy-paste boilerplate.

03

From $10 to Production

Start with a $10 toolkit, upgrade to architecture patterns, then let us deploy your infrastructure. One platform for the whole journey.

04

Lifetime Updates

Your purchase includes all updates through the v21.x lifecycle. When Angular 21.1 or 21.2 ships, you get updated tools automatically.

Get Started
Angular Developers
Who Ship Faster.

From learning signals to deploying production apps. Pick your level and start building.

Instant download · Lifetime updates · 7-day guarantee