> For the complete documentation index, see [llms.txt](https://docs.labii.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.labii.com/widgets/section-widgets/diagram.md).

# Diagram

## Overview

The Diagram widget category provides visual tools for documenting laboratory workflows, project schedules, record relationships, and stage-based progress directly within Labii ELN and LIMS records. These section widgets help teams turn complex processes into diagrams that are easier to review, communicate, and maintain alongside the underlying scientific data. Whether you are mapping an experimental workflow, planning project timelines, tracing linked records, or showing where a sample sits in a review process, these widgets make visual documentation part of the record itself.

## Widgets

* [Mermaid](/widgets/section-widgets/diagram/mermaid.md) - Create custom diagrams from text-based Mermaid syntax
* [Gantt Chart](/widgets/section-widgets/diagram/gantt-chart.md) - Visualize project schedules, tasks, milestones, and timelines
* [Relation Flowchart](/widgets/section-widgets/diagram/relation-flowchart.md) - Show record relationships from ForeignKey and ForeignKeys columns
* [Stage Flowchart](/widgets/section-widgets/diagram/stage-flowchart.md) - Track Select-column progress through predefined workflow stages