Modern software for the resale economy.

We build tools for individual resellers. Currently, we're building a mobile-first listing app that turns photos and voice into ready-to-publish listings for eBay, Poshmark, Mercari, Depop, and Etsy — in batches, not one at a time.

What We're Building

We're currently focused on building tools for individual resellers.

We're building a mobile-first listing app for individual resellers on eBay, Poshmark, Mercari, Depop, and Etsy. Snap photos in batch, describe items with your voice, and get complete listings ready to publish — reducing per-item listing time from 5-10 minutes to under 2 minutes. Designed around how resellers actually work: batch photo capture on iOS & Android, voice input for details like brand, condition, and model, smart titles, descriptions, and pricing suggestions, plus a desktop dashboard for review and multi-platform publishing.

About Us

We're a small software team based in Oklahoma City, building tools for individual resellers. Our focus is on solving real problems for sellers who deal with unique, ever-changing inventory.

    • Why "Martinsburg"?

      Our name comes from a colorful Macaw mobile in our co-founders' baby's nursery—the first thing that captured their little one's attention. They named the bird Martinsburg, and it stuck.

    • What are you building?

      We're currently building a mobile-first listing app for individual resellers on eBay, Poshmark, Mercari, Depop, and Etsy. Snap photos, describe with your voice, publish in batches. Stay tuned for more details.

    • How can I get in contact?

      Use the Contact Us link at the bottom of the page. Our contact email is [email protected].