Diagram playground

Write a diagram as text and it renders here as you type. Canvas editing for six of ten notations. Nothing leaves your browser. Syntax reference ·

Source text

archlab 1.0 gantt
title "Search sprint 31"
description "A fortnight, fixed. What was fitted into it, and the one story that did not fit"
starts 2026-04-06

@gantt
  section "Ceremonies"
    task planning "Sprint planning" 1d done at 0
      desc "The only line in this plan that sets a date instead of reading one. The box is agreed here and everything below is fitted into it."
    milestone refinement "Backlog refinement" at 7
    milestone review "Sprint review" at 11
    milestone retro "Retrospective" at 11
  section "Committed stories"
    task typeahead "Type-ahead suggestions" 4d done after planning
      desc "One of three stories that leave planning together and then wait on nothing, each other included. A sprint board is mostly not a graph."
    task filters "Filter chips" 3d done after planning
    task export "Export results to CSV" 5d active after planning
    task exportdocs "Document the export format" 2d after export
      desc "The section's only dependency, and a small one: the format has to exist before anybody can write it down."
  section "Waiting on the platform team"
    task reindex "Reindex window" 12d at-risk at 0
      desc "Not ours to shorten and not ours to schedule — the platform team owns the cluster, and the window is where the window is."
    task synonyms "Synonym dictionary live" 3d after reindex
      desc "Cannot start until the day after the review it was promised for. This is the story that rolls over, and it is the only chain here with no float."

Tab indents · Esc then Tab leaves the editor · syntax reference

Drawn from the text