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In a nutshell Waltz allows you to visualize and define your organisation's technology landscape. Think of it like a structured Wiki for your architecture.

Learn more

Getting started

FINOS Hosted Platform - Waltz Demo postgres build Latest Version FINOS - Active

Corporate Contributors

Org Notes
DB Logo Deutsche Bank press release
NWM Logo NatWest Markets press release

Technology Stack


  • Java 8
  • Embedded Jetty or WAR file (tested on Tomcat 7/8)
  • Spark framework
  • JDBC via JOOQ

See pom.xml for a full list of Java dependencies.

Supported Databases

  • Postgres
  • Microsoft SQL Server (2017+)


  • Browser based
    • Chrome, Safari, Firefox, Edge
  • AngularJS 1.7
  • Svelte
  • Bootstrap 3
  • D3

See package.json for full list of javascript dependencies.

Roadmap / Releases

Checkout the project milestones and browse through the Todo, work in progress and done issues.

Provisional dates for upcoming releases:

Release Date Provisional Change Summary
1.62 Jul 30th 2024 Java 11, possible move to Javalin

See the releases page for historic versions.


  1. Fork it (
  2. Create your feature branch (git checkout -b feature/fooBar)
  3. Read our contribution guidelines and Community Code of Conduct
  4. Commit your changes (git commit -am 'Add some fooBar')
  5. Push to the branch (git push origin feature/fooBar)
  6. Create a new Pull Request

NOTE: Commits and pull requests to FINOS repositories will only be accepted from those contributors with an active, executed Individual Contributor License Agreement (ICLA) with FINOS OR who are covered under an existing and active Corporate Contribution License Agreement (CCLA) executed with FINOS. Commits from individuals not covered under an ICLA or CCLA will be flagged and blocked by the FINOS Clabot tool. Please note that some CCLAs require individuals/employees to be explicitly named on the CCLA.

Need an ICLA? Unsure if you are covered under an existing CCLA? Email


All contributions should contain the standard license and copyright notice (see Notice file).

Individual and organisational contributors are listed in the contributors file


Copyright (C) 2023 Waltz open source project

Distributed under the Apache License, Version 2.0.

SPDX-License-Identifier: Apache-2.0

Security Reporting

Please refer to the Waltz Security Policy page.