Top 12 Open-Source Alternatives to draw.io

Product categories

Brainstorming And Ideation Charting Libraries Collaboration Design Tools Development Diagrams Flow Charts And Diagrams Flowcharts Prototyping UML UML Diagrams Wireframing

Summary

The top open-source alternatives to draw.io are PlantUML, Gephi, 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.

PlantUML Landing Page
1

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 5 social mentions
Gephi Landing Page
2

Gephi

Gephi is an open-source software for visualizing and analyzing large networks graphs.
Pricing:
- Open Source
#Diagrams #Flowcharts #Wireframing 31 social mentions
Pencil Project Landing Page
3

Pencil Project

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

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
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 30 social mentions
Mermaid Landing Page
6

Mermaid

Create diagrams and visualizations using text and code.
Pricing:
- Open Source
#Flow Charts And Diagrams #Diagrams #UML 23 social mentions
Textik Landing Page
7

Textik

Textik is a free ASCII diagrams editor which allows you to create any text-based ASCII diagram.
Pricing:
- Open Source
#Development #Diagrams #Flowcharts 5 social mentions
TikZiT Landing Page
8

TikZiT

TikZiT is a graphical tool for rapidly creating graphs and string diagrams using PGF/TikZ.
Pricing:
- Open Source
#Diagrams #Flow Charts And Diagrams #Flowcharts 12 social mentions
Wireflow Landing Page
9

Wireflow

Create beautiful flowcharts
Pricing:
- Open Source
#Design Tools #Flowcharts #Prototyping 2 social mentions
C3.js Landing Page
10

C3.js

D3-based reusable chart library that enables deeper integration of charts into web applications
Pricing:
- Open Source
#Diagrams #Flowcharts #Charting Libraries 10 social mentions
C4 model Landing Page
11

C4 model

The C4 model for visualising software architecture. Context, Containers, Components, and Code.
Pricing:
- Open Source
#Flow Charts And Diagrams #Diagrams #UML 15 social mentions
DeepNotes Landing Page
12

DeepNotes

Infinite Canvas Encrypted Note-taking
Pricing:
- Open Source
- Freemium
- $5.0 / Monthly
#Productivity #Note Taking #Security & Privacy 2 social mentions