Tiller
Project management built for AI-agent development. Keep context flowing between you, your assistant, and your backlog.
In DevelopmentChicago, IL Independent Software Studio Est. 2025
Software for the quiet water
Oxbow Labs builds small, focused apps for problems the big companies stepped over. Crafted carefully, priced honestly, made to last.
Products
MDownComing Soon · Mac App Store
A fast, native markdown editor for macOS. The preview is a real editing surface — write in raw markdown or rendered text and switch freely. No library, no lock-in, no second brain. Just your files.
Learn morePreflight
A scoring engine for micro-SaaS ideas. Know what your odds actually are — before you spend six months building.
In DevelopmentMore quiet water ahead.
The Studio
Big companies chase big rivers. Oxbow Labs lives in the bends they leave behind — niche problems too small for venture scale, but exactly right for one well-built product.
The studio is run by JC Grubbs: 25-plus years building software for everyone from startups to NASA, including 15 years leading a technology consulting firm, Made in Tandem. Every product here is held to the same standard — does it make someone's day genuinely easier?