Top 12 Open-Source Alternatives to Visio

Visio

Simplify and communicate complex information using data-linked diagrams.

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Product categories

Design Tools Diagrams Flow Charts And Diagrams Flowcharts Graphic Design Software Haskell JavaScript Prototyping Software Development Tools UML UML Diagrams Wireframing

Summary

The top open-source alternatives to Visio are draw.io, PlantUML, and Pencil Project. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

draw.io Landing Page
1

draw.io

Online diagramming application
Pricing:
- Open Source
#Diagrams #Flowcharts #Wireframing 714 social mentions
PlantUML Landing Page
2

PlantUML

PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.
Pricing:
- Open Source
#Flow Charts And Diagrams #Diagrams #UML Diagrams 6 social mentions
Pencil Project Landing Page
3

Pencil Project

Single-user mockup / wireframing / diagramming tool
Pricing:
- Open Source
#Diagrams #Flowcharts #Wireframing 11 social mentions
Gephi Landing Page
4

Gephi

Gephi is an open-source software for visualizing and analyzing large networks graphs.
Pricing:
- Open Source
#Diagrams #Flowcharts #Wireframing 32 social mentions
asciiflow Landing Page
5

asciiflow

Infinite ASCII diagrams, save to Google Drive, resize, freeform draw, and export straight to text/html.
Pricing:
- Open Source
#Diagrams #Flowcharts #UML 31 social mentions
TikZiT Landing Page
6

TikZiT

TikZiT is a graphical tool for rapidly creating graphs and string diagrams using PGF/TikZ.
Pricing:
- Open Source
#Diagrams #Flowcharts #Graphic Design Software 12 social mentions
Mermaid Landing Page
7

Mermaid

Create diagrams and visualizations using text and code.
Pricing:
- Open Source
#Flow Charts And Diagrams #Diagrams #UML 28 social mentions
nomnoml Landing Page
8

n

nomnoml

nomnoml is a free and open source tool to generate nice looking UML diagrams from simple text definitions.
Pricing:
- Open Source
#Diagrams #Flowcharts #Prototyping 5 social mentions
Wireflow Landing Page
9

Wireflow

Create beautiful flowcharts
Pricing:
- Open Source
#Flowcharts #Design Tools #Wireframing 2 social mentions
Diagrams Landing Page
10

D

Diagrams

Diagrams lets you draw the cloud system architecture in Python code. It was born for prototyping a new system architecture without any design tools. You can also describe or visualize the existing system architecture as well.
Pricing:
- Open Source
#Diagrams #Flow Charts And Diagrams #Software Development 45 social mentions
Diagrams Haskell package Landing Page
11

Diagrams Haskell package

Diagrams is a powerful, flexible, declarative domain-specific language for creating vector...
Pricing:
- Open Source
- Free
#Diagrams #Flowcharts #Haskell 1 social mentions
Kroki Landing Page
12

Kroki

Creates diagrams from textual descriptions! It provides a unified API with support for BlockDiag, BPMN, Bytefield, C4 (with PlantUML), Ditaa, Erd, GraphViz, Mermaid, Nomnoml, PlantUML, SvgBob, UMLet, Vega, Vega-Lite, WaveDrom
Pricing:
- Open Source
#Diagrams #Flowcharts #Prototyping 31 social mentions