Life & fun · alternatives · 2026
24 alternatives to Swimlanes – A web app for creating sequence diagrams with Markdown
Swimlanes.io is a simple free online tool for making sequence diagrams
Swimlanes is a free web tool for creating sequence diagrams using Markdown-style text. Users edit text on the left side while the diagram updates in real time on the right. The tool allows diagrams to be downloaded as… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Swimlanes – A web app for creating sequence diagrams with Markdown launched in 2017; newer entries below may have overtaken it.
- 1
2024 · markwhen.com · its alternatives →
- 2
Web Sequence▲77A Chrome extension that saves you time drawing diagrams 👨🏻💻
2017 · chromewebstore.google.com · its alternatives →
- 3
🧜♀️ 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 →
- 4MA
2024 · mermaid-ascii.art · its alternatives →
- 5
Mark▲358Create flowcharts & diagrams in seconds powered by AI
2017 · apps.apple.com · its alternatives →
- 6
- 7
2025 · docs.mermaidchart.com · its alternatives →
- 8
- 9
Mermaid AI▲256Maximize your diagramming efficiency with Mermaid AI
2024 · mermaid.ai · its alternatives →
- 10
presentations as code - author cool slide decks, text-only, offline-ready, collaborative - arnehilmann/markdeck
2019 · github.com · its alternatives →
- 11
- 12
Create cinematic, animated Mermaid diagrams with our powerful Motion Engine. Export to video, share with your team, and bring your flows to life.
Dec 2025 · fanfa.dev · its alternatives →
- 13
Octopus.do▲257FREE visual sitemap builder with lo-fi wireframes for prototyping website architecture & structure. Use our website planning and site mapping tool to create a site map instantly. Our website diagram tool and website mapping is extremely fast and easy, we promise!
2019 · octopus.do · its alternatives →
- 14
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 →
- 15
Inspired by the design and UI/UX of apps like Notion, and utility of open-source apps like StackEdit, I decided to create a minimalistic, local-only WYSIWYG Markdown editor. Some features worth highlighting: - Monaco editor and Prettier integration for code snippets - Tables (apparently the holy grail of WYSIWYG editing) - Embeds (for CodePen, CodeSandbox and YouTube, most useful for HTML or JSON exports) - Accepts Markdown paste-in, and "exports"/generates HTML, Markdown and JSON outputs - Collaboration (with real-time awareness and initial commenting system, available only when…
2023 · editor.vrite.io · its alternatives →
- 16
I've been working on markwhen for a bit as a way to create timelines and calendars from plain text, like markdown. I personally like tools that let you immediately start using them, and I set out to do that here with markwhen. Let me know if you have any questions or feedback!
2023 · app.markwhen.com · its alternatives →
- 17
One year ago I open-sourced my very first 'real' project and shared it here. I was a college student in my senior year and desperately looking for a job. At the time of sharing it i couldn't even afford a domain and naively let someone buy the one i had my eyes on lol. It's been a hell of a year with this blowing up, me moving to another country, and switching 2 jobs. In a year we somehow managed to hit 26k stars, grow a 1000+ person discord community, and support 37 languages. I couldn't be more grateful for the community that helped this grow, but now i don't know what direction to take…
2025 · drawdb.app · its alternatives →
- 18CE
2016 · code2flow.com · its alternatives →
- 19
Sketch2scheme▲208Convert hand-drawn diagrams into digital schemes
2024 · sketch2scheme.com · its alternatives →
- 20
- 21
📚 Literary relationship maps. Contribute to herol3oy/austen development by creating an account on GitHub.
2025 · github.com · its alternatives →
- 22
mermaidonline.live is an online platform designed to make working with Mermaid diagrams more accessible, efficient, and user-friendly. Mermaid itself is an open-source JavaScript-based tool that allows users to create diagrams and visualizations using plain text syntax. Instead of manually drawing flowcharts, sequence diagrams, or Gantt charts, users can simply write text in Mermaid’s simple Markdown-like syntax, and the tool automatically generates the visual output. While Mermaid is widely used by developers, technical writers, and project managers, it often requires either local setup or…
Nov 2025 · mermaidonline.live · its alternatives →
- 23IV
Create sequence diagrams online in real time
2020 · diagrams.menduz.com · its alternatives →
- 24
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 →
Also compare
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 →