Unverified60% confidenceFactExact time
Markdown was designed by John Gruber in 2004 and is a plain-text format widely used by technical platforms such as GitHub, Notion, and Reddit.
2
Sources
60%
Confidence
Long-term
Relevance
7/15/2026
First Seen
Sources
Related Claims
UnverifiedMarkdown has become the de facto standard for developer documentation, and GitHub READMEs, technical blogs and API docs commonly adopt it.64% similarVerifiedMarkdown is the standard format for platforms such as GitHub, Stack Overflow, and Notion.64% similarVerifiedMarkdown is the default document format for mainstream platforms such as GitHub, Notion, and Obsidian, and is also the default output format for nearly all large language models.63% similarVerifiedGitHub Flavored Markdown (GFM) added table, task list, and fenced code block syntax, with its table syntax using pipe characters to separate columns.62% similarUnverifiedGlance is an open-source dashboard project maintained by developer glanceapp on GitHub, with a backend written in Go.62% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/522952API
curl https://kongchang.com/api/v1/knowledge/claims/522952MCP
get_claim(id=522952)