Document and Data Merging Software
Confident, Controlled Merging with DeltaMerge
DeltaMerge unifies multiple document or data versions edited concurrently or sequentially, resolving conflicts automatically and delivering a single, consistent result ready for use.
Trusted by Enterprises Worldwide
98.5%
Reduction in labour for change validation
80%
Faster document revision review times
1
million
Text & element changes compared in minutes
10MB
Document compared in seconds
100%
Accurate
Enterprise Merging Without the Bottlenecks
DeltaMerge is an end-to-end merging solution built for teams who need speed, precision and fully automated results, whether combining large document sets or complex data.
How many documents or data sets can I merge at once?
DeltaMerge merges any number of documents or large data sets in one run, using high-performance processing to stay fast and reliable.
Will it work with our existing systems and pipelines?
Absolutely. DeltaMerge integrates seamlessly with content platforms, CI/CD workflows, or your own applications for smooth, automated merging.
Will it resolve merge conflicts automatically?
Yes. DeltaMerge automatically resolves most merge conflicts using intelligent rules, with options to automate, flag for review, or route through custom workflows for clean, accurate results.
Will it capture every conflict and change accurately?
Of course. DeltaMerge identifies and reconciles all changes, including structural edits, attribute updates and moved content, so the final document or dataset is complete and consistent.

From Multiple Versions to One Source of Truth
The DeltaMerge pipeline merges multiple documents or data sets with precision and speed. It applies user-defined rules to resolve conflicts, reconciles every change, and integrates seamlessly to deliver a clean, authoritative result, cutting manual work, speeding delivery, and ensuring full audit traceability.
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Merge Your Way
The DeltaMerge pipeline merges multiple documents or data sets with precision and speed. It applies user-defined rules to resolve conflicts, reconciles every change, and integrates seamlessly to deliver a clean, authoritative result, cutting manual work, speeding delivery, and ensuring full audit traceability.
Merge result
Merge resolved

20+ DeltaMerge Capabilities
From complex change detection to high-volume automation, DeltaMerge provides the flexibility and power to merge documents and data at scale with complete accuracy.
Customisable Merge Rules
Set detailed merge rules to decide what to include, ignore, or flag, ensuring results match your exact business and compliance needs.
Automated Conflict Detection
Automatically identify and resolve most merge conflicts, reducing manual intervention and keeping outputs clean and accurate.
Table Merging
Accurately detect, merge, and reconcile changes within tables, capturing added rows, updated cells, and structural adjustments.
High Performance & Scalability
Merge numerous documents or multi-gigabyte datasets quickly and reliably, maintaining speed and consistency at enterprise scale.
Flexible Output Processor
Produce clean, final merged files or structured outputs tailored for publishing, downstream systems, or audit-ready records.
Integration-Friendly API
Embed DeltaMerge in your environment with powerful Java and REST APIs for smooth automation and seamless workflow integration.
Compare Smarter. Work Faster.

Merge for Writers
DeltaMerge brings together multiple drafts or edits into a single, polished document. Whether you work solo or with a distributed team, it makes reconciling edits effortless and ensures every detail is captured.
- Combine multiple drafts
- Resolve edits
- Deliver publication-ready documents

Merge for Developers
Embed DeltaMerge directly inside your app or content platform to give users accurate, conflict-free merging, without writing complex merge logic yourself.
- Integrate with Java or REST APIs
- Customise merge rules
- Support content at scale

Merge for Enterprises
DeltaMerge handles massive document collections and complex data sets, running merges sequentially or in parallel to meet the pace of enterprise operations.
- Automate large multi-version merges
- Choose sequential or concurrent processing
- Ensure audit control

Merge for Regulated Industries
From legal to life sciences, DeltaMerge keeps every version controlled and verifiable, simplifying reviews and meeting strict regulatory demands.
- Preserve traceability
- Verify version histories
- Guarantee complete, consistent outputs
Merge Smarter. Deliver Faster.
Simple merge tools can handle straightforward file merges, and scripted line-based merges work for basic text or code, but DeltaMerge goes further, delivering enterprise-grade accuracy, intelligent conflict resolution, and seamless automation for complex documents and data at any scale.
| Capability | Simple Merge Tools | Scripted Line-Based Merges | DeltaMerge |
|---|---|---|---|
| Scope of Merge | Text only | Raw line-by-line merges; no understanding of hierarchy | Text, structure and attributes |
| Handling Large Files & Volume | Struggles with big files or many documents | Handles batches but not complex data at scale | High-performance, scalable to multi-GB files and numerous documents |
| Conflict Detection & Resolution | Flags simple overlaps; mostly manual | Basic conflict marks; limited resolution | Auto-detects and resolves conflicts with user-defined rules |
| Customisable Merge Rules | Minimal settings; little control | Scripting required for complex rules | Fully configurable inclusion, exclusion, and output |
| Merge Processing Options | Concurrent only | Some parallel runs via scripts | Allows flexible sequential or concurrent merging for any number of inputs |
| Integration | No direct integration with platforms | Possible through custom code or scripts | Ready to embed with Java and REST APIs |
| Automation | Manual merges only | Limited batch or scheduled scripts | Built for CI/CD pipelines and automated merge workflows. |
| Output & Compliance | Limited formatting and traceability | Raw text; heavy post-processing needed | Clean, structured, audit-ready outputs |
“The implementation of DeltaXignia’s software into Semcon’s existing applications enabled a quantum leap forward in terms of efficiencies and effectiveness.”
David Sonden,
Manager Business Development, Semcon Informatic
Innovation, Proven by Patents
Protected by patents, our algorithm delivers a level of insight others can’t replicate. It compares files by structure and content to capture every change with precision, automatically and at scale, reducing risk and effort while accelerating efficiency.
Learn more about our patents →Patents Granted
US8196135
EP2174238
US10073821
EP2843545
US8423518
Multi-Format Support
DeltaMerge merges documents and data of every type, bringing multiple versions together into a single, consistent result.
XML
Perfect for structured documents and data-driven publishing. Resolve attribute changes, element moves, and nested edits with precision while keeping schema integrity intact.
JSON
Ideal for configuration files, APIs, and application data. Consolidate edits and additions cleanly, handling structural changes and key-value updates automatically.
DITA
Purpose-built for technical documentation and topic-based authoring. Merge content reuse and collaborative edits without breaking topic relationships or maps.
Custom & Proprietary Content
Tailor DeltaMerge to match your own schemas or specialised data formats. Flexible rules and processing pipelines let you automate conflict resolution and focus on changes that matter.

Check, Compare, Merge, Consult
From validating conversions to tracking changes and merging edits, DeltaXignia’s comparison solutions support every stage of your content and data workflows.
DeltaCompare
Precise Document & Data Comparison
Identify, review, and share every change between two or more document versions.
For teams that need to see and manage changes between two or more document versions, DeltaCompare delivers highly accurate comparisons across formats like XML, HTML and DITA.
✓ Highlight additions, deletions, and modifications with precision.
✓ Produce redlined outputs for editors or downstream systems.
✓ Integrate with CMS or content management pipelines.
DeltaCheck
Independent Conversion Validation
Ensure every conversion or migration is accurate with clear, actionable reports.
DeltaCheck is the final safeguard for accurate conversions and migrations. It automatically analyses source and converted files, detects every difference, and produces clear reports you can trust.
✓ Detect changes between source and converted files.
✓ Generate clear, actionable HTML reports for quick sign-off.
✓ Works with Word, XML, HTML, DITA, DocBook and more..
Consult
Expert Setup & Optimisation
Get tailored help to plan, configure, and fine-tune DeltaXignia solutions.
Partner with the team behind the technology to plan, configure, and fine-tune DeltaXignia solutions so they perform flawlessly in your environment.
✓ Design and set up tailored pipelines.
✓ Optimise how Check, Compare, and Merge fit into your processes.
✓ Fine-tune your setup for faster, more reliable results at scale.
Training
Build In-House Expertise
Equip your team with the skills and knowledge to integrate and configure DeltaXignia.
Equip your technical and content teams with the knowledge and confidence to get the most from every DeltaXignia solutions.
✓ Master the DeltaXignia essentials.
✓ Gain deep understanding of our APIs and configuration languages.
✓ Learn to write and maintain custom configuration code.
✓ Stay up to date as features and best practices evolve.
Frequently Asked Questions
What is DeltaMerge?
DeltaMerge is an intelligent merging solution from DeltaXignia that brings together multiple versions of structured data and documents, such as XML, JSON, and DITA, into a single, consistent output. It resolves conflicts with full awareness of hierarchy, schema, and context.
How is DeltaMerge different from basic merge tools?
Unlike line-based or text-only merge tools, DeltaMerge understands the structure of your content. It merges at the element and attribute level, ensuring changes are applied logically rather than overwriting valuable updates.
Does DeltaMerge support three-way and multi-way merging?
Yes. DeltaMerge supports intelligent three-way and n-way merging, allowing teams to combine changes from multiple contributors or branches while maintaining accuracy and consistency.
What formats does DeltaMerge support?
DeltaMerge supports XML, JSON, DITA, and custom structured grammars. It’s ideal for technical documentation, product data, and configuration files where precision and traceability are essential.
Can DeltaMerge be integrated into automated workflows?
Yes. DeltaMerge provides APIs and command-line tools for seamless integration with content management systems, CI/CD pipelines, or any automated publishing environment—keeping every merge controlled and auditable.



