Free Class diagrams - 17 Free AI tools

Archie AI

From idea to software application fast with Archie’s AI-first platform and services.

Product development

Open

41,321

470

4.8

v2.3 released 1y ago

Free + from $1000

Share

16,705 archie.8base.com

Diagramming

Instantly design UML & workflows with AI

Diagrams

Open

17,831

85

4.6

Released 2y ago

Free + from $3/mo

Share

shazil saqib

🛠️ 1 tool 🙏 3 karma

Sep 2, 2025

Isn't it possible that when downloading a diagram from it, the diagram to have white background rather than black background.

Reply Share Delete Report

Coolmindmaps

Create and search cool mind maps instantly.

Mind maps

Open

17,042

381

3.7

Released 2y ago

100% Free

Share

Sayuri Alvarado Tanamachi

🙏 14 karma

Sep 12, 2024

Is amazing but you can't edit the mind map

142 Reply Share Delete Report

ERBuilder

Generate ER diagrams effortlessly with AI.

Data modeling

Open

10,201

44

3.6

Released 2y ago

Free + from $69/mo

Share

Guillermo Cid

🙏 52 karma

Jul 9, 2023

asking for key, no usability without a paid subscription

21 Reply Share Delete Report

Mermaid Chart

Visualize complex data with simple charts

Diagrams

Open

5,632

18

Released 2y ago

Free + from $6.67/mo

Share

Code to Flowchart

Turn code into interactive flowcharts with AI

Coding

Open

5,477

12

1.0

Released 1y ago

Free + from $4.49/mo

Share

Fluig AI

Visual expression artifact. Turn docs and ideas into instant diagrams with AI.

Diagrams

Open

64,864

74

3.5

v1.1.0 released 4mo ago

Free + from $19/mo

Share

59,641 www.fluig.cc

Valentina Jara

🛠️ 1 tool 🙏 105 karma

May 27, 2025

Game changer. Stays on topic, generates solid layouts, fast, and switching formats is smoother than I expected, so what else do you really want/need? Big plus that it lets you test things properly before hitting you with a paywall (most tools do exactly that). Giving this one a 5 for sure!

4512 Reply Share Delete Report

DrawingPics

Create unlimited images in a whiteboard, locally.

Sketch to image

Open

5,123

43

3.0

Released 1y ago

Free + from $19

Share

Shawn Tan

🛠️ 2 tools 🙏 3 karma

May 31, 2024

It's very easy to install and use.

3 Reply Share Delete Report

LIDA

Generate visualizations from data using AI

Data visualization

Open

4,086

21

Released 2y ago

100% Free

Share

DiagramMatic

Convierte descripciones en diagramas Mermaid con precisin lingstica.

Flowcharts

Open

3,073

34

3.0

Released 1y ago

100% Free

Share

PaceAI

Supercharge tech docs with AI-powered insights.

Technical documentation

Open

2,304

12

Released 2y ago

Free + from $19/mo

Share

SnapDiagram

AI transforms hand-drawn sketches into digital diagrams.

Sketch to diagram

Open

3,746

26

1.0

Released 1y ago

Free + from $3/mo

Share

1,565 snapdiagram.xyz

Tomas

🛠️ 1 tool

Aug 25, 2024

Hey Tom, Thanks for sharing your feedback, and I'm sorry to hear that the conversion didn't meet your expectations. We want to make sure that you're getting the best experience possible. The team tested this before launch and the tool generated the diagram quite nicely. Check out this video showcasing a successful flowchart conversion https://www.youtube.com/watch?v=tvp18p-7Z_A. We would greatly appreciate if you want to share with us the image you uploaded that gave you the result mentioned. Just shoot us an email at [email protected]. If the issue persists or you'd like further assistance, feel free to reach out, and we'd be happy to look into it! Best regards, The SnapDiagram Team

Reply Share Delete Report