Ross ROSS = Recommend OSS · open-source software intelligence for agents

mark-when/markwhen

Make a cascading timeline from markdown-like text. Supports simple American/European date styles, ISO8601, images, links, locations, and more. observed · 2026-08-28

github.com/mark-when/markwhen · homepage · HTML · MIT (permissive) observed · 2026-08-28

Health v2 · maintenance only

32/100

  • Activity 0
  • Release rhythm 35
  • Longevity 100

Flags: no_releases

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 1931
  • days_rel: n/a
  • days_push: 996
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

4869 stars · 159 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Markwhen is a markdown-like journal language and toolchain that converts plain text with dates into JSON, which is rendered as cascading timelines, calendars, and other views. This repository hosts the view container; the parser, timeline, calendar views, and VS Code extension live in sibling repositories under the mark-when organization.

Use cases

  • create a gantt chart from plain markdown text
  • visualize a project timeline by writing dates in a text file
  • turn a markdown journal into a cascading timeline
  • render a calendar view from markdown-like event text
  • plan a project schedule without heavyweight PM software
  • embed an interactive timeline in a web page or VS Code

When to choose

  • you want to author timelines or gantt charts as plain text
  • you prefer lightweight text-based project planning over GUI tools
  • you need multiple output views (timeline, calendar, resume) from one document
  • you want a VS Code workflow for timeline documents

When to avoid

  • you need a full-featured GUI project management suite with dependencies and resource allocation
  • you need the hosted editor itself, which is not open source
  • you require real-time multi-user scheduling or calendar sync with external services

Facets

application · maturity active

data-visualization parser templating developer-tools data-visualization developer-tools web-development text-editors browser cross-platform editor-plugin timeline gantt-chart markdown calendar text-to-timeline vscode-extension journaling project-management automation web-server

6 sources

Member repositories

RepositoryRoleHealth v2
mark-when/markwhenmain32

For agents

markdown · JSON · MCP: product_card(name="mark-when/markwhen")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem