CodeShift AI | Legacy Modernization, SaaS Replacement & AI Launch Assist

Is Your Software Holding Your Business Back?

Three ways small businesses get stuck—pick the one that sounds like you.

“My software is stuck in the past”

The Windows-only app your business runs on is aging out—the original developers are gone, features are frozen, security risks are growing, and a traditional rewrite would cost a fortune.

Legacy Modernization →

“I'm overpaying for software I barely use”

Hundreds a month for subscriptions where you touch 10% of the features—while prices climb, features disappear, and your data sits in someone else's hands.

SaaS Replacement →

“I built something with AI—now what?”

Your prototype works, but hosting, security, and going live are a wall. You need someone to get it safely into the world—and hand you the keys.

Launch Assist →

How the Build Works

Whether we're modernizing an aging application or replacing an overpriced subscription, AI does the heavy lifting and an experienced engineer checks every step—professional-grade results in a fraction of the time and cost.

Discovery & Analysis

Start with a plain-English message—no technical prep needed. Share your code when you're ready, or just walk us through your current tools on a quick call. We analyze what you have, what you actually use, and what the best path forward looks like.

No documentation needed Call or email—your choice Your business rules captured

Expert-Supervised Transformation

AI agents do the bulk of the work—whether that's transforming legacy code or building something new from scratch. An experienced engineer supervises every step, so what ships is production-quality code—not AI-generated slop.

Human-supervised AI Code quality assurance Security best practices

Modern Implementation

We build your solution on modern, well-supported technology—whether it's a full application rebuild or a lean custom tool to replace what you're overpaying for.

Modern technology Works on any device Cloud-ready

Delivery & Handoff

Receive a fully functional, tested application with clean, documented code. Your team can maintain and extend it, or we can provide ongoing support and feature development.

Production-ready code Complete documentation Ongoing support available

See Exactly How an Engagement Works →

SUCCESS STORY

From Windows-Only to Any Device: A Real-World Modernization

Transforming a 15+ year old Windows desktop business application into a modern web app that runs on any device

A business ran its entire operation on a 15+ year old, Windows-only WinForms application—critical to the company, but locked to office PCs, built on aging technology fewer and fewer developers know, and unable to take on modern features. CodeShift AI rebuilt it as a modern web app: the same workflows their team relies on, now with stronger security, instant sync across devices, and room to grow.

Before & After

Legacy WinForms Desktop UI - Before Modernization

BEFORE: Legacy WinForms Desktop UI

Modern web app interface - After Modernization

AFTER: The Modern Web App

Business Impact

Any Device

Desktop, Mobile, Tablet Access

Modern

Future-Proof Technology

Enhanced

Security & Authentication

Maintainable

Clean, Documented Code

Outcome: The client now runs on modern, easy-to-maintain software their team can use from any device, with stronger security and the ability to add new features quickly. The application is cloud-ready and positioned for growth.

Read the Full Case Study →

Modernizations typically quote between $15,000 and $60,000, fixed before work starts—where consultancies quote $100,000+.

NEW SERVICE

Stop Overpaying for Software You Barely Use

Most small businesses rent subscription software packed with features they'll never touch. We build lean, custom alternatives that do exactly what you need—at a fraction of the ongoing cost.

Paying Too Much

$200, $500, $1,000+ per month for a platform where you use maybe 10% of the features. That adds up fast.

Too Complex

Overwhelming dashboards, features your team never uses, and a learning curve that wastes everyone's time.

Locked In

Tools you used to buy once are now subscriptions forever—price hikes, dropped features, shutdowns, your data in someone else's hands.

How a Replacement Works

Tell us what you actually use your current tool for. We strip away the bloat and build a clean, custom solution that does exactly that—hosted affordably, fully yours.

Common Replacements

Expensive listserv/email platform → Simple mailing list that just works

Bloated CRM with 100+ features → Lightweight contact & deal tracker

Enterprise scheduling software → Simple booking & appointment system

Overpriced reporting dashboards → Custom dashboard with your key metrics

Cut Monthly Costs

Replace expensive subscriptions with affordable hosting—often under $20/month.

Built Fast

Simple tools built in days or weeks, not months. No lengthy contracts or discovery phases.

You Own It

Your code, your data, your hosting. No vendor lock-in, no surprise price hikes.

Exactly What You Need

No feature bloat. A clean tool your team understands and uses.

"It looks seriously professional and seems to work wonderfully."

— Unsolicited feedback from a colleague of our beta client

See Full SaaS Replacement Details →

Replacements typically quote between $5,000 and $20,000—about one to two years of the subscriptions they replace.

NEW SERVICE

Built Something with AI? We'll Help You Ship It.

You used Claude, Cursor, v0, Lovable, or Replit to build something that actually works. Now you're stuck on deployment, hosting, accounts, or infrastructure. We get it across the finish line—and hand you the keys.

Stuck on Deployment

Your code runs locally but you can't figure out hosting, environment variables, or build pipelines. The momentum dies the moment you hit "deploy."

Tangled in Setup

Accounts to create, API keys to manage, DNS to configure, auth to wire up, databases to provision. Each step looks simple until it isn't.

Worried About Going Live

Is it secure? Will it scale? What about backups, SSL, and monitoring? You don't want your first real users to be your QA team.

How a Launch Works

Send us what you've built—a GitHub repo, a Replit/Lovable link, or even a folder you dragged off your desktop. We review it, deploy it to production-grade infrastructure you own, and walk you through how everything works.

What We Handle

Local prototype → Production deployment + custom domain

Hardcoded keys & demo data → Secure env vars, real database, auth

"Works on my machine" → CI/CD, SSL, monitoring, backups

15 confusing dashboards → One clear owner's manual, fully in your control

Code Review & Hardening

Quick audit for security gaps, leaked secrets, and obvious bugs—so you don't ship something that breaks the first time someone uses it.

Deployed to Your Accounts

Everything provisioned under your ownership—Vercel, AWS, Cloudflare, whichever fits. No vendor lock-in to us. Full handoff.

Days, Not Weeks

Fixed scope and a predictable price, agreed before we start—so you can stop staring at the deploy button and start showing real users.

Plain-English Walkthrough

You'll understand exactly what we did and how to manage it going forward. No black boxes, no "call us every time something breaks."

See Full Launch Assist Details →

Fixed quotes, typically $2,500–$7,500. A straightforward review-and-launch starts at $2,500.

The Founder

Who's Behind CodeShift AI

Supervised AI is only as good as the engineer supervising it. Here's who's doing the supervising.

Josh King

Founder · Principal Software Engineer & AI Architect

CodeShift AI was founded by Josh King, a Principal Software Engineer and AI Architect with 15+ years stewarding high-stakes software—from streaming platforms to enterprise systems serving millions of users.

As a Principal Engineer at a Fortune 500 telecom, Josh pioneered an AI-assisted development workflow that delivered a feature estimated at 33 days in a day and a half—fully tested, to enterprise standards. CodeShift AI brings that same discipline—supervised AI with genuine human oversight—to small and medium businesses.

He's spent his career modernizing legacy codebases—Angular-to-React migrations, design-system overhauls, and auth and API rewrites—and now builds the autonomous multi-agent systems that power CodeShift AI's modernization work.

Much of his recent work centers on the exact problem CodeShift AI solves for clients: helping teams ship AI-generated code safely—with the review, guardrails, and human oversight it needs.

When you work with CodeShift AI, you work directly with Josh—the engineer actually doing the work. No sales reps, no handoffs, no outsourced team: the person you email is the person building your software.

Based in Castle Rock, Colorado.

Connect on LinkedIn →

15+ yrs

Stewarding high-stakes software development

1.5 days

To ship a feature estimated at 33 days—AI-assisted, fully tested

Top 30 / 8,000

Top-performer recognition among 8,000 engineers

Millions

Of users served by systems he's shipped

Frequently Asked Questions

Common questions about modernizing legacy software, replacing overpriced SaaS, and shipping AI-built prototypes to production.

What is CodeShift AI?

CodeShift AI is a software service for small and medium businesses. We modernize outdated applications, build custom replacements for overpriced software subscriptions, and get AI-built prototypes safely launched. The work is done by supervised AI agents, personally overseen by an experienced principal engineer, so you get production-quality software in a fraction of the usual time and cost.

What does "supervised AI agents" mean — is this just unreviewed AI code?

No. AI agents handle the heavy lifting, but an experienced engineer reviews and supervises every step for security, code quality, and maintainability. You get clean, documented, production-ready code—reviewed by a human who is accountable for it.

Do I own the code, data, and hosting?

Yes. Everything we build or launch is yours: your code, your data, and hosting set up under your own accounts. There is no lock-in to CodeShift AI—you can walk away with everything at any time.

What does a project cost?

Every project is a fixed quote, agreed before any work starts—never an hourly meter. Launch Assist engagements typically quote between $2,500 and $7,500, subscription replacements between $5,000 and $20,000, and legacy modernizations between $15,000 and $60,000. The free assessment turns those ranges into your exact number, with no obligation. After launch, optional hosting-and-care plans start at $99 a month.

Do you work with enterprises or small businesses?

We focus on small and medium businesses. Our model is built to deliver professional-grade software affordably and quickly, without the meetings, manuals, and multi-month timelines of traditional enterprise consulting.

How do we get started, and do I need documentation or meetings?

Start with a message in plain words—share source code or a prototype if you have it, or save that for later once you know us. No documentation or lengthy meetings required, and a quick call or screen share is always an option. We provide a free initial analysis and a clear plan. You can reach us through the contact form or at info@codeshiftai.com.

Looking for service specifics? See the FAQs on Legacy Modernization, SaaS Replacement, and Launch Assist.

Ready to Get Started?

Whether you need to modernize an outdated application, replace an overpriced subscription, or launch something you built with AI, we'll assess your situation and give you a clear plan—no meetings required unless you want one.

Prefer email? Reach us at info@codeshiftai.com

You're writing to Josh King Founder · Principal Software Engineer — he reads and answers every message

Free, honest assessment

A clear plan and recommendation

Timeline and cost estimate

No obligation, no sales pressure

Name *

Email *

Company

Current Technology / Tool

Tell us about your project *

Your message goes straight to Josh—not a sales queue. We respect your privacy; your information is never shared with third parties.

Modern Software Without the Enterprise Price Tag