draw.io
IcePanel
Excalidraw
Kroki
Graphviz
flowchart.fun
Terrastruct
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.

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Which is more popular?
Based on our record, Diagrams seems to be more popular. It has been mentioned 49 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | diagrams.mingrammer.com | launchrender.com |
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Recommendations tracked on public social media and blogs since March 2021.

Since I often use Python, I decided to look into Diagrams ( https://diagrams.mingrammer.com) and was impressed by how easily the code was to understand. Started writing diagrams for my Terraform modules, and it worked well. - Source: dev.to / about 1 year ago
When I discovered Mermaid I was thrilled. I recently discovered "Diagrams" an alternative to Mermaid where you express your diagrams using Python code. - Source: dev.to / over 1 year ago
I'm working on a python library for Vizdom, to be released later this year, but in the mean time, you can use this python library which uses Graphviz under the hood. - https://diagrams.mingrammer.com/. - Source: Hacker News / about 2 years ago
Tracking LaunchRender since Jan 2024.
When comparing Diagrams and LaunchRender, you can also consider the following products.


Collaborative modelling and diagramming tool based on the C4 model. Software architecture design made fun! 🧊
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Excalidraw is a whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them.
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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
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Graphviz is open source graph visualization software. It has several main graph layout programs.
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An open-source tool for generating flowcharts from text
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