The Best Terminal Render Alternatives in 2026

DiagramGPT generates diagrams from text prompts, with the project page describing diagram workflows for teams.

The Chart.xkcd library creates charts in an xkcd style, with examples for line, XY, bar, pie, and radar charts.

Mermaid generates diagrams such as flowcharts and sequence diagrams from text using syntax similar to Markdown.

Tree generates ASCII diagrams of folder structures as a browser utility written in TypeScript and React.

CASCII provides an open-source ASCII diagram builder written in JavaScript, according to its page description.

Mermaid Live Editor creates charts and diagrams from text using Mermaid’s markdown-like syntax in a browser.

Charts Builder creates and customizes charts through the Google Charts API, with output code available to copy.

SankeyMATIC builds flow diagrams for comparing quantities across stages, with examples covering budgets, results, and processes.

Kroki provides one API for generating diagrams from textual descriptions using libraries such as Mermaid, PlantUML, Graphviz, and D2.

Swimlanes.io creates sequence diagrams from text in a browser and lets users download diagrams or share them through links.

UMLet provides free, open source UML drawing with a simple interface for making diagrams, including sequence and activity diagrams.

text2diagram creates diagrams and charts from text descriptions, with real-time collaboration and document permissions listed on its page.

PlantText provides an online editor for PlantUML code and generates class, sequence, activity, and state diagrams.

family-chart is a D3-based library for visualizing interactive family trees, with examples and additional features documented in its repository.

Cascii Core builds ASCII and Unicode diagrams in a browser using vanilla JavaScript, without server or library dependencies.

Svgbob converts text-based ASCII diagrams into SVG graphics, with both a library and command-line interface.

The Data Visualisation Catalogue explains chart types and techniques, with a searchable library organized by visualization function.

teeplot organizes visualization output and names files based on semantic plotting variables.

Plotly provides an open-source Python library for creating interactive charts and data visualizations.

Chart.js is an open-source JavaScript library for drawing charts on websites.

Line Graph Maker builds customizable line charts from labels and data values, with image export available from the page.

amCharts lets users build interactive charts and maps in a browser from templates, then export, embed, or publish them.

Diagramify turns a written diagram description into a diagram, with a simple prompt-and-generate workflow shown on its page.

BarGraphMaker creates customizable bar charts that users can download as JPG, PNG, or SVG images.