Dmitrii Kargashin
Founder, Cardamon Inc
Dmitrii Kargashin is the solo founder of Cardamon Inc and the developer behind JSON Copilot. He builds and ships his products end to end, from the first idea to deployment, and wrote the JSON tooling and the AI Copilot that run here. Before going solo he led engineering teams and built large-scale enterprise systems used by thousands of people. He works across the stack in TypeScript, Node, Vue 3, and PostgreSQL.
What Dmitrii builds
Everything ships under his Cardamon brand. JSON Copilot is the tool you are using now: a browser-based JSON formatter, validator, and AI editor. He also builds:
- Time Calculator — add, subtract, and convert durations the way you say them, on the web and in the mobile apps.
- noHuman Team — a platform that turns AI agents into collaborative startup teams with real roles and tools.
Before Cardamon
Dmitrii did not start out solo. He spent years in enterprise engineering, where he led and mentored several development teams and built core modules for a high-load product and workflow system used by thousands of people. He automated dozens of business processes, cut a document approval cycle by roughly ten times, and helped reshape how whole departments worked. That background shapes how JSON Copilot is built: fast, private by default, and honest about what it does.
Why JSON Copilot exists
Most JSON tools either format your data or hide it behind a sign-up. Dmitrii built JSON Copilot so the core work, formatting, validating, and exploring JSON as a tree or mind map, runs entirely in your browser, and the AI Copilot is there when you want a payload explained, repaired, flattened, or turned into a schema. He writes and maintains the product and its guides himself.
Find Dmitrii elsewhere
- LinkedIn — work history and what he is building now.
- GitHub — code and projects.
- Cardamon Inc — the studio behind JSON Copilot.