Since 2025 · AI Product Studio · Built with Claude

Building AI products that change how we work — with Claude.

limchang.dev is an AI product studio that designs and builds software with Anthropic's Claude. We make an AI-assisted 360° video editor, a desktop companion app, free tools anyone can use, and marketing improvement services.

  • Mar 2025Founded
  • 3+Products & cases
  • ClaudeBuild partner
CUTROOM
CUTROOM AI-assisted 360° video editor
Stack
  • Claude Code
  • Claude API
  • SAM 2.1
  • Whisper
  • FFmpeg
  • macOS
  • Windows
  • Chrome Extension
  • Cloudflare

About

A small team with big leverage.
We ship fast with AI.

limchang.dev is an AI product studio founded in March 2025 in South Korea. We are a small team, but with Claude as our development partner we go from idea to implementation, testing and launch quickly. We focus on making labor-intensive work like video editing, and expertise-heavy work like marketing for small sellers, easier with AI.

  • 01

    We use what we build

    We only build what we want to use every day, and only ship what we have tried ourselves.

  • 02

    We sweat the details

    From a single animation frame to a single line of copy, we polish until it feels right.

  • 03

    We operate transparently

    Clear pricing, clear policies and fast replies — that is how we earn trust.

  • 04

    AI proposes, people decide

    AI output is a draft. Only what a person reviews and approves gets applied.

Built with Claude

How we use Claude

Anthropic's Claude is our development partner and the reasoning layer inside our products.

Building

AI 360° video editing · CUTROOM

Claude proposes highlights and camera direction

Claude reads the speech transcript and AI subject-tracking data, then proposes highlight segments and camera-movement keyframes as structured data. Nothing reaches the timeline until the editor reviews and approves it.

  1. 01 · 360° footageLoad DJI and Insta360 originals without conversion
  2. 02 · AI analysisSAM 2.1 subject tracking + Whisper transcription
  3. 03 · Claude proposesHighlights and camera direction as JSON
  4. 04 · Editor approvesOnly approved suggestions hit the timeline
{
  "highlights": [
    { "start": 12.4, "end": 18.9,
      "reason": "Child runs toward the camera, laughing" }
  ],
  "camera": [
    { "t": 12.4, "yaw": -35, "pitch": 4, "fov": 80 }
  ],
  "needs_review": true
}

Example Claude output format (in development)

In use

Development

We build our products with Claude Code

PIX-ZZI, CUTROOM, Proki and our other products are designed, implemented and tested with Claude Code. It is how a small team ships several products quickly.

Planned

Marketing · Free tool

Reviewing Korean product pages and drafting improvements

A seller pastes a product detail page; Claude checks structure, copy and claims, then drafts improved Korean copy and a checklist. Every change needs the seller's approval.

Planned

Trip planning · Proki

Summarizing reviews into a trip itinerary draft

Claude summarizes reviews and keywords for saved restaurants and drafts a day-by-day itinerary that accounts for travel time. Users can edit the draft right away.

Products

Our work

Products and case studies designed and built by limchang.dev.

Desktop app · On sale

PIX-ZZI, a pixel hamster that lives on your desktop

A tiny pixel hamster that keeps you company on your desktop. It flaps its ears while you type, taps its feet to the space bar and reaches out when your cursor comes near. Colors and accessories are fully customizable.

  • PlatformmacOS · Windows
  • Price$3.90, lifetime license
  • PrivacyWorks offline · No data collection
CUTROOM 360° video editor
Case study · AI 360° video editing

CUTROOM — AI-assisted 360° video editor

A Mac editor where AI follows the subject in DJI and Insta360 360° footage and frames the shot for you — automating the manual camera work that 360° editing usually needs.

  • Automatic camera keyframes from AI subject tracking (SAM 2.1)
  • Cut editing assisted by speech transcripts and beat detection
  • Claude-powered highlight and camera-direction suggestions in development
  • macOS
  • SAM 2.1
  • Whisper
  • Claude
Proki, the restaurant detective mascot
Case study · Trip planning

Proki — food trip itinerary planner

A browser extension that runs right on top of Naver Map. It surfaces verified restaurants on the map and turns the places you save into a day-by-day trip itinerary.

  • Collect places in a basket and arrange them into daily routes
  • Travel time between stops calculated with Kakao directions
  • Restaurants verified against real review and keyword data
  • Claude-powered review summaries and itinerary drafts planned
  • Chrome extension
  • Naver Map
  • Kakao directions

Business

What we do

What we do today, and what we are preparing next.

Digital products

We plan, build and sell software that changes how people work and live — like an AI-assisted 360° video editor and a desktop companion app — with Claude.

Free tools

We build practical web tools and release them for free, so anyone can get everyday tasks done faster and more easily.

Marketing improvement

We review and improve product pages, landing pages and promotional content with AI so businesses reach more customers.

Coming soon

E-commerce retail

Lifestyle products we have tried and chosen ourselves, offered at fair prices through our online store.

Coming soon

Social commerce

Introducing products and talking with customers directly on social channels, with fast and friendly support.

Coming soon

Cross-border shopping

Buying hard-to-find overseas products safely on our customers' behalf and handling delivery.

Contact

Questions about AI adoption, marketing
or partnerships? We'd love to hear from you.

We reply within one to two business days.

[email protected]