kalman03

An independent developer

@kalman03 39 X followers jingxiang kalman03.com First product launched 2y ago

Total monthly visits: 22K; Oct 2026All others besides Mermaid Live Editor are <5K
Public revenue: Undisclosed; No public revenue across products
Products: 3; Since Oct 2024
Latest launch: 4mo ago; Mermaid Live Editor22K visits/mo

100% full-depth creator dossier open: complete product portfolio, 12-month combined traffic & MRR curves, shipping cadence, and timeline events.

Traffic

Portfolio · Last 12 months

Monthly visits

Products and research metrics
Product	Tagline	Category	Visits · Oct	MoM	Launched	Revenue
Mermaid Live EditorOSSmermaid-live-editor.comCreate diagrams online	Create diagrams online	Whiteboards & Diagrams	22K	Prev <5K	2026-07	Undisclosed
Tennisliverankingtennisliveranking.comLive rankings, calendars, profiles for WTA, ATP, ITF tours.	Live rankings, calendars, profiles for WTA, ATP, ITF tours.	Sports & Fantasy	<5K	Prev <5K	2024-10	Undisclosed
Agent Skills Registryskill.extrachatgpt.comThe SKILL.md registry	The SKILL.md registry	Directories & Curated Lists	<5K	Prev <5K	2026-01	Undisclosed

Launches, marketing, revenue milestones, and pricing/plan/positioning changes across products