LemonTree
🇦🇹 AT
Model diff and merge for Enterprise Architect and SysML
Features
Model comparison and merge
- Three-way, model-aware comparison with graph structure support
- Automated merging where possible
- Graphical conflict resolution for conflicting changes
- Comparison and merging of diagram changes and layout with integrated SVG viewer
- Supports UML, SysML, BPMN and SysML v2 (.sysml, JSON) formats
Review and change management
- Save and reload compare/merge sessions
- Review changes and retain review state and comments
- Supports traceability and audit needs, including ISO 26262
Web review
- View and share diff/merge sessions in a browser
- No merge or session saving in Web version
- Provided as a Docker container
Model components
- Separate parts of an Enterprise Architect model into reusable submodels
- Independently maintain submodels
- Reintegrate submodels into the main model
Automation and CI
- LemonTree.Automation runs without a GUI
- Usable in build pipelines for model merges and consistency checks
- Logging and XML reports
Enterprise Architect and version control workflows
- Integrates with Enterprise Architect
- Acts as a diff/merge tool in Git, SVN and PTC workflows
- Git add-in features include discarding local changes
Pricing
Pricing available on request from LieberLieber or authorized partners
EU Trust Profile
What we verified against public sources, last checked 2026-10-08. Every point links to its evidence.
- Evidence →European legal entityLieberLieber Software GmbH, Vienna (AT)
Registered in the Austrian company register under FN 296242a.
- Evidence →ISO 27001ISO/IEC 27001:2022
Certification confirmed for another year after a two-day audit.
- Evidence →Self-hosting available
LemonTree operates entirely on-premises; model data is neither uploaded nor telemetered.
- Evidence →Documented data export
Exports of changes documented as CSV or XML.
We list only what we could verify against a public source on the check date. A point that is absent was not established either way — it is not a finding against the vendor. The vendor's own information prevails.
Work at LemonTree?
This badge is free for every vendor we list and has no bearing on the order of any list. It is issued on the basis of a verified European headquarters (AT) and the compliance points we checked against public sources — the date on it is the date we last checked.
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Integrations
LemonTree: frequently asked questions
- Which tools does LemonTree integrate with?
- LemonTree connects with Sparx Systems Enterprise Architect, Git, Subversion (SVN), PTC, GitHub, Bitbucket, Azure DevOps and GitLab, plus 8 more integrations we found.
Feature, pricing and integration details are based on web research (as of 2026-10-08), without guarantee, errors are possible. The vendor's website prevails.