Work · alternatives · 2026

24 alternatives to I've created a tool to design sequence diagrams with my team

Create sequence diagrams online in real time

This tool lets teams collaboratively design sequence diagrams in real-time. Launched in 2020, it provides a web-based interface for creating and editing diagrams that show interactions between system components or… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. I've created a tool to design sequence diagrams with my team launched in 2020; newer entries below may have overtaken it.

1
Colibri Diagrams▲79
Presentable sequence diagrams from text
2023 · its alternatives →
2
Vecta▲114
Team diagramming on advanced SVG editor
2017 · vecta.io · its alternatives →
3
Diagram as code tool with draggable customizations▲266
In the past I've used declarative diagram generation tools like Mermaid.js a lot for quickly drawing up things but for presentations or deliverables I find that I have to then move the generated diagrams over to a tool like Lucidchart which allows full control of the organization and customization. Therefore I am now working on this to combine the benefits of both into just one tool which can do both functions. The project is certainly in the early stages but if you find yourself making architecture diagrams I'd love to hear your thoughts on the idea or even a Github issue for a feature…
Oct 2025 · github.com · its alternatives →
4
Creately 3.0▲365
The simplest way to visualize ideas, plans & processes
2020 · creately.com · its alternatives →
5
Web Sequence▲77
A Chrome extension that saves you time drawing diagrams 👨🏻‍💻
2017 · chromewebstore.google.com · its alternatives →
6
Diagrams for Mac▲196
A diagram editor for visualizing structures and processes
2020 · diagrams.app · its alternatives →
7
Create diagrams of complex data flows in software systems▲205
Hello HN, It has been a while since I contributed to the web, so I decided to get back in shape and publish "something". This app is a POC of "what if diagrams were more dynamic". I'm a software engineer by trade, and with conventional tools, I often times struggle to explain flows of data in complex software systems. I got inspired by video games like The Incredible Machine and Factorio, as in some ways, software systems tend to become Rube Goldberg-esque machines ;) As a side quest, I also wanted to craft diagrams faster than text-based tools (ex: mermaid), as I am always forgetting their…
2024 · github.com · its alternatives →
8
Overflow 2.0▲262
Create interactive user flow diagrams that tell a story
2022 · overflow.io · its alternatives →
9
Vectary 2.0▲271
3D design tool for teams
2018 · vectary.com · its alternatives →
10FE
Fast, Easy System Diagrams▲59
2019 · architype.io · its alternatives →
11
Programmatically Generate Diagrams for GitHub Readmes▲220
🧜‍♀️ RESTful rendering pipeline for generating sequence and UML diagrams using Mermaid for Markdown docs (Diagrams as a Service) - Schachte/Mermrender
2019 · github.com · its alternatives →
12
Ilograph – interactive architecture diagrams as code▲92
The web version of Ilograph: interactive multi-perspective system architecture diagrams
2020 · app.ilograph.com · its alternatives →
13
CodeX by Supernova▲216
Convert designs into production-ready code in real-time
2018 · supernova.io · its alternatives →
14
Mark▲358
Create flowcharts & diagrams in seconds powered by AI
2017 · apps.apple.com · its alternatives →
15
Generate Sequence Diagram from Text▲9
Free sequence diagram online tool. Create sequence diagrams using textual notation or draw quickly via Drag and Drop with an easy to use interface.
2020 · sequencediagram.org · its alternatives →
16
ChartDB v2▲229
Database diagrams editor for teams
2025 · chartdb.io · its alternatives →
17
Online database diagram editor▲311
Hey all! I released drawDB about a month ago and now it's open source. I hope you find it useful. If you want to check out the app you can go to https://drawdb.vercel.app/ . Thank you:)
2024 · github.com · its alternatives →
18
GUI for editing Mermaid class diagrams▲230
2025 · docs.mermaidchart.com · its alternatives →
19
Swimlanes – A web app for creating sequence diagrams with Markdown▲52
Swimlanes.io is a simple free online tool for making sequence diagrams
2017 · swimlanes.io · its alternatives →
20
Collaboratively Edit Diagrams in VS Code with Draw.io▲142
This unofficial extension integrates Draw.io (also known as diagrams.net) into VS Code. - vscode-drawio/README.md at 14209ad462028cbf7013bc8e094bf0fc6e811d30 · hediet/vscode-drawio
2020 · github.com · its alternatives →
21
GUI for making animated webcomics▲149
The fate of humanity depends on this story getting out. I am exposing myself to great danger by writing this publicly.
2022 · elonman.com · its alternatives →
22
Quick Diagram▲121
A tool for generating diagrams and flowcharts from text.
2020 · quickdiagram.com · its alternatives →
23
HackerDraw▲99
Your engineering team’s favourite diagramming tool
2022 · hackerdraw.com · its alternatives →
24
Simple Sequence Diagram AI▲3
Create sequence diagrams instantly with AI
Feb 2026 · sequenceflow.tanaike.jp · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →