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Dev Sac

Custom Web Application Development

Custom web application development with TypeScript and Cloudflare Workers. Full-stack apps built for speed, from MVP prototypes to production systems.

Node.js TypeScript React Cloudflare Workers SQLite Astro
300+
Edge Locations
13
Tables in ContentMK
Zero
Cold Starts

When You Need More Than a Website

A website shows people information. A web application lets them do something with it. If your users need to log in, manage data, run calculations, track inventory, or interact with other systems, a static website is not going to cut it. You need a custom application built around your specific workflow.

Full-stack Node.js web applications fit businesses and startups that have outgrown spreadsheets, manual processes, or off-the-shelf tools that do not quite fit. Every application ships with TypeScript across the entire codebase, a proper database schema, API endpoints, authentication, and deployment infrastructure. These are production systems, not prototypes that need to be rebuilt later.

TypeScript End-to-End, Deployed to the Edge

Every application runs TypeScript from the frontend through the API layer to the database queries. One language across the full stack means fewer bugs at the boundaries, faster development cycles, and a codebase any TypeScript developer can maintain after handoff.

For applications that need speed and global reach, deployment runs on Cloudflare Workers in production. Sacramento Groceries runs its entire backend on Workers with a D1 database. API responses come back fast because the code runs at the edge, close to the user. Zero cold starts, zero servers to manage, and the infrastructure scales automatically. Applications that need a traditional server run on Node.js with Express or Hono, deployed to your preferred cloud.

Real Applications, Not Mockups

ContentMK is a desktop content management application built with Electron, React, and SQLite. It has a 13-table database schema, a module system with seven shipping modules, two-way WordPress API sync, AI integration with per-site access control, and a tag management system that catches duplicates across well over a thousand tags using Levenshtein distance matching.

Home Inventory is a full-stack Next.js application that tracks household items, warranties, maintenance schedules, vehicles, and home improvement projects. The grocery price comparison tool is another example of a data-driven application built to solve a specific local problem. It includes bulk data import, per-item file management, and Home Assistant smart home integration. Every module connects to a shared SQLite database with Zod validation across all data models.

What a Project Looks Like

Every engagement starts with a scoping email that maps out your requirements, identifies your users, and defines the data model. Next comes research into your domain and the workflows you are trying to automate, then a proposed architecture before any code. You see a database schema and API design before the first line of application code is written.

Development is iterative. You get working software at each milestone, not a big reveal after three months of silence. Most web applications launch an MVP in 8-10 weeks, with additional features shipped in 2-4 week cycles after that. If you are validating a startup idea, the MVP is scoped to the smallest set of features that proves whether the concept works.

Beyond the Launch

Applications are not one-time projects. Users request features, business requirements change, and integrations need updating. Every launch includes full documentation, deployment procedures, and a written handoff so your team can operate the application independently. Ongoing development covers feature additions, performance optimization, and infrastructure updates.

Edge-deployed applications on Cloudflare Workers require almost no maintenance. There are no servers to patch, no OS updates to apply, and no scaling configuration to tune. The infrastructure handles traffic spikes automatically. For applications that need ongoing SEO and marketing support, Frog Stone Media handles search strategy and content in-house.

How It Works

1

Discovery

Requirements, users, and technical constraints

2

Architecture

Database schema, API design, tech stack selection

3

Build

Iterative development with working demos each milestone

4

Deploy

Production infrastructure, monitoring, and handoff

Frequently Asked Questions

How much does custom web application development cost? +
The cost depends on complexity. A simple CRUD app with user accounts and a database is the smallest scope. Applications with real-time data, third-party integrations, and complex business logic take more. A detailed written estimate follows a free email exchange about your requirements.
How long does it take to build a web application? +
Most web applications take 8-16 weeks from kickoff to production. Simple tools with straightforward data models take 8-10 weeks. Applications with multiple user roles, integrations, and complex workflows take 12-16 weeks. Working software arrives at each milestone so you can test and give feedback throughout.
What is the difference between a website and a web application? +
A website displays content. A web application lets users do things: create accounts, enter data, run calculations, generate reports, manage inventory. If your users need to log in, interact with a database, or perform tasks, you need a web application. If they just need to read information and contact you, a website is enough.
What tech stack do you use for web applications? +
TypeScript across the full stack. React or Astro for the frontend, Node.js or Cloudflare Workers for the backend, and SQLite or PostgreSQL for the database. The specific combination depends on your requirements. Edge-deployed apps on Cloudflare Workers run close to the user with zero cold starts.
Can you build an MVP first before the full application? +
Yes, and it is the recommended path. Building an MVP lets you validate your idea with real users before investing in the full feature set. MVPs are scoped to the smallest set of features that prove whether the concept works. Most MVPs launch in 6-8 weeks. From there, development iterates based on actual usage data.
How do you handle web application security? +
Security is built into the architecture, not bolted on. Every application gets input validation, parameterized queries, authentication with hashed credentials, HTTPS enforcement, and CORS configuration. Edge-deployed applications on Cloudflare Workers have an additional security advantage: no origin server to attack, no traditional server vulnerabilities.
What happens after the web application launches? +
Every launch includes documentation, deployment procedures, and a written handoff so your team can operate independently. Ongoing development covers feature additions, bug fixes, and infrastructure updates. Edge-deployed applications on Cloudflare Workers require minimal maintenance since there are no servers, no OS patches, and no scaling configuration.
Do you build mobile apps too? +
Progressive web applications (PWAs) work on any device including phones and tablets. PWAs install like native apps, work offline, and send push notifications, but they run in the browser so there is no App Store approval process. For most business applications, a PWA delivers the same user experience as a native app at a fraction of the cost.

Based in Sacramento, CA

Serving clients nationwide.

Ready to build your web application?

Describe your project and get a scope, a timeline estimate, and an honest assessment of the right tech stack.

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