Software · Games · Experiments
Small tools. Sharp games.
We ship focused utilities for developers and playful experiments for players. One studio, one bar for craft.
Catalog
Tools we ship and use ourselves. Most open in the browser; we link source when it is public.
Web · Next.js · React
Harvard-style layout with automated fit checks, field scores, and PDF export. Runs entirely in your browser. Optional flow: copy a prompt, paste JSON from another tool, append roles to Experience.
Open appBuild fast
Ship small slices early.
Keep it simple
One job per tool, no ceremony.
Ship early
Feedback from players and devs beats any test plan.
Kero is an independent software studio. We build sharp tools for people who ship software, and small games where we chase feel, juice, and odd ideas, often with the same habits we use on product code.
