KrysML.com

📋 Release Notes

KrysML.com – System & Process Capture

30 Sept 2026 - v5.0.1.1

• Rebrand: Krys.ML → KrysML – The dot is gone, so the name no longer looks like a web address. KrysML (Krystyon's Modelling Language) is the plain-text language; KrysML.com is the app that turns it into diagrams.

29 Sept 2026 - v5.0.1.0

• Privacy Improvements – Dagre bundled locally. No third-party CDN requests; fully offline and self-contained.

22 Sept 2026 - v5.0.0

• Syntax & Parser – Refinements to broaden the range of diagram types. Bug fixes: DO-shaped IF via THESE:, ? fallback handling, MERGE: colon enforcement.
• Help & Onboarding – Notes replaced by an in-app syntax reference, opened via [help] next to the Script editor. Welcome script refreshed for v5.
• Right Panel – New button: "Proudly Open Source — Powered by Netlify".

📖 KrysML Reference

Syntax, examples, and practice notes

KrysML (Krystyon's Modelling Language) is a simple, plain-text modelling language for describing systems.

KrysML is a structured way to take notes or jot down ideas, and this app (KrysML.com) lets you turn what you've written into diagrams oriented around what you need to communicate.

There are a few simple rules you need to follow to turn your notes into diagrams, and this guide explains them all.

# Block Diagram
10. THESE: KrysML.com
    - Header
    - Left Panel
    - Centre Panel
    - Right Panel
    - Footer

000. START: launch KrysML.com @user ~browser
10. DO: select project name @user~header
     # Default is "New Project"
20. DO: triple click @user ~header
30. DO: type new name @user ~header
40. DO: create/edit diagrams @user ~right_panel
50. IF: finished
    - YES: save project @user ~header
    - NO: continue working @user
          LOOP TO 40
999. END: close tab/window @user ~browser

# Cycle
10. Create
20. Read
30. Update
40. Delete
    # - loops back to 10
10. Create

# Interface Diagram
10. HAPPY: Server ~KrysML.com
    # - Delivers app over network to user's browser
20. HAPPY: Network
30. HAPPY: User's browser
40. HAPPY: User's data
    # - Data stays with user locally
30. HAPPY: User's browser

• Tags — @actor for people, ~system for systems. Use them when the actor is intrinsic to the step; use a separate chapter when it isn't.
• Comments — # at the start of a line disables it. // and <!-- --> also work. Pick one style and stick with it.
• Deactivation — remove the dot after the step number to disable a step. Don't do this on branches.
• Numbering — gaps of 10 or 100. Numbers are labels, not an order. Reusing a number creates a cycle.
• Alternative forms — a trailing ? can replace IF:. PROCESS: and DO: are interchangeable.

• Start high. Detail belongs in code or engineering drawings.
• Keep it simple. If a diagram is getting complicated, or a script is unreadable, that's telling you something.
• Use multiples of 10 for step numbers. That leaves room to insert steps later without renumbering.
• Experiment and adapt. The example diagrams are clean. Real-world scenarios usually aren't.

🌐 Proudly Open Source

KrysML.com — System & Process Capture

KrysML (Krystyon's Modelling Language) is a simple, plain-text modelling language for creating process, relationship, and interface diagrams, as well as basic flow charts.

KrysML.com is a single-file, offline-compatible, open-source tool that turns KrysML into diagrams. It's a free tool that will always be available to everybody.

KrysML.com exists to put automation into the hands of people who don't code, whilst protecting the privacy of their work.

• Clarity and shared understanding over niche expertise
• Solving real-world issues over memorising syntax and diagram shapes
• Same input = same output over randomness of AI algorithms
• Speed and simplicity over putting in more hours and effort

While there is value in the items on the right, I value the items on the left more.

Use Ctrl+S (or Cmd+S) to save the page. Open in a private/incognito window if you don't need to save what you are working on.

As the owner of KrysML.com, I hold myself to the standards of the profession I trained in:

• Competence — the code is maintained, bugs get fixed, and I keep learning as the tool grows.
• Honesty — mistakes are owned, not hidden. What the tool can't do is stated plainly.
• Safety — nothing ships that would put your data or your work at risk.

This follows the IET Rules of Conduct and the Engineering Council's Statement of Ethical Principles.

— Kris Martin, ICTTech TMIET

🔒 Privacy Statement

KrysML.com – System & Process Capture

"KrysML.com makes no external network requests. No data is sent, stored, or processed outside your browser. Everything you create stays on your device until you choose to save or export it. This app does not use cookies, analytics, or tracking."

📋 Terms of Use

KrysML.com – System & Process Capture

"KrysML.com is provided 'as is' without warranty of any kind. You are responsible for backing up your own data and for how you use the tool. The author is not liable for any loss of data or for any decisions made based on diagrams produced by this tool."

MIT License
Copyright (c) 2026 Kris Martin

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.