Document and Data Comparison Software
Accurate, automated comparison with DeltaCompare
Detect and present every change with precision using the leading document and data comparison solution. Fast, reliable, and fully customisable for your workflow.
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
Compare Without Limits, Deep Change Detection Made Simple
DeltaCompare is a full comparison solution designed for teams who need accuracy, automation, and results that scale.
Can it handle thousands of documents or large data files?
Yes. DeltaCompare is built for enterprise workloads and can process huge volumes of data quickly and reliably.
Will it fit into our existing workflow or platform?
Seamlessly. You can integrate with CMSs, CI/CD pipelines, or embed DeltaCompare directly inside your product.
Is output ready for publishing processes or downstream use?
Every time. With flexible configuration, you control how results are presented, ensuring they’re perfectly formatted for immediate publishing or seamless integration into downstream processes.
Is output ready for publishing processes or downstream use?
Yes. DeltaCompare identifies every change, including structural edits, attribute updates, and even moved content, so you always know exactly what’s different and where.
End-to-End Change Detection You Can Trust
The DeltaCompare pipeline ensures accurate, automated change detection. It handles complex edits at scale, cuts manual effort, and fits seamlessly into workflows to deliver consistent, high-quality outputs, reducing risk, speeding approvals, and ensuring every change is fully traceable for compliance.
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Flexible by Design
DeltaCompare adapts to your workflow. Configure rules and outputs, and integrate via Java or REST APIs or run standalone, scaling easily for teams, enterprises, and regulated industries.
Redline document
DeltaOutput
25+ DeltaCompare Capabilities
From structural change detection to seamless integration, DeltaCompare offers over 25 capabilities to fit any workflow.
Ignore Changes
Exclude insignificant edits, such as whitespace, formatting tweaks, or selected elements, so reports focus only on meaningful updates.
Diagram Comparison
Accurately detect and highlight differences inside diagrams or graphics embedded in your documents.
Flexible Output Options
Generate clean redlines, side-by-side views, or structured comparison files that fit seamlessly into your publishing or automation workflows.
Move Tracking
Identify when content has been moved within a document, ensuring accurate change history and context for reviewers.
Word-by-Word
Highlights every added, deleted, or modified word, giving clear visibility of textual changes for fast and accurate reviews.
Character-by-Character
Detects even the smallest edits, like a single number or punctuation change, for ultimate precision in critical documents and data.
Integration-Friendly API
Embed DeltaCompare directly into your systems with robust Java and REST APIs, enabling smooth connections to CMS, CI/CD, or custom apps.
Table Comparison
Pinpoint cell-level edits, added rows, and rearranged columns to ensure every table change is captured and clear.
Compare Smarter. Work Faster.
Compare for Writers
Use DeltaCompare as a standalone solution or within your authoring platform to spot every change and deliver publication-ready documents with confidence.
- Spot every change
- Create clean redlines
- Collaborate smoothly
Compare for Developers
Embed DeltaCompare’s powerful engine directly into your product, giving users seamless, accurate change detection without the cost of in-house development.
- Embed a proven comparison engine
- Customise outputs
- Support multiple formats
Compare for Enterprises
Integrate DeltaCompare into CI/CD pipelines or enterprise workflows to track and validate changes across huge volumes of XML, JSON, and other formats, fast and reliably.
- Automate change detection
- Integrate with workflows
- Ensure audit control
Compare for Regulated Industries
From legal and aviation to pharma and finance, DeltaCompare ensures every change is captured and audit-ready, helping you meet strict industry standards.
- Meet compliance needs
- Maintain version history
- Protect sensitive data
Skip the Mark-Ups. Upgrade to Real Comparison.
Track changes cover basic document edits, and line-by-line tools work for quick code or plain-text diffs, but DeltaCompare goes further, offering enterprise-grade accuracy, automation, and seamless integration for complex documents and data at any scale.
| Capability | Track Changes | Line-by-Line Comparison Tool | DeltaCompare |
|---|---|---|---|
| Scope of Detection | Text edits only | Compares line breaks only; misses moved or nested edits | Text, structural edits, attribute changes, and moved content |
| Supported Formats | Word documents (mainly DOC/DOCX) | Plain text or basic code files | XML, JSON, HTML and other structured or semi-structured documents and data |
| Handling of Large Files | Slows down or may fail | Can handle big plain-text files but lacks precision | High performance and scalability for thousands of documents or massive datasets |
| Automation & CI/CD | Manual, within desktop applications | Possible with scripts, but no native automation | Full automation and CI/CD integration via Java and REST APIs |
| Output Options | Word markup, limited formatting | Raw diffs with little or no formatting | Post-processing enables custom output, clean redlines, side-by-side views, structured XML/JSON for downstream processes |
| Move Tracking | Supported | Not supported | Detects and reports moved paragraphs, sections, and elements |
| Customisable Comparison Rules | Not available | Minimal; basic include/exclude settings only | Fully configurable, define what to compare or ignore and how results are presented |
| Integration | Stays inside Word Application | Can integrate with code version-control tools only | Integration-friendly with CMS, publishing tools, and enterprise workflows |
| Compliance & Audit Trail | Basic, manual proofing required | No audit-ready reporting | Audit-ready outputs for legal, regulated, or enterprise environments |
| Parallel Processing | Single-threaded; each file must be opened and saved manually. | May script parallel runs but lacks built-in optimisation. | Built for multi-threaded and parallel comparisons, significantly reducing processing time on enterprise workloads |
| Optimised Performance | Slows or crashes on very large or complex files. | Handles plain text but lacks performance tuning for structured content. | Features performance optimisation and adaptive pipelines that maintain speed and reliability even with gigabyte-scale files. |
From Challenge to Success with DeltaCompare
From legal publishers to airlines, customers trust DeltaCompare to deliver speed, accuracy, and compliance.
Legal Publishing
Richard Boorberg Verlag
By integrating DeltaCompare, Boorberg now manages complex legal documents with over 10,000 changes quickly and accurately. They cut the time needed for version control and change validation, reducing manual effort by up to 41 hours per publication while minimising the risk of human error. A scalable solution that keeps every legal text precise and compliant.
Read the full customer story →“The editor has studied law and precisely understands the content. No one else does. DeltaCompare ensures they can focus on legal interpretation rather than spending hours checking structural changes.”
Dr Wolfgang Schindler
Project Manager, Richard Boorberg Verlag
Aviation Regulation
SunExpress
SunExpress cut compliance review time by 80% and reduced manual effort by 90% with DeltaCompare. Integrated via REST API, the solution delivers clean redline reports, handles tables and images, and allows selective element exclusion, streamlining updates and ensuring accuracy across complex regulatory documents.
Read the full customer story →“With multiple authors contributing to documents, it became challenging to track all the changes accurately, and DeltaXignia helped streamline that process.”
Mehmet Dinç
Documentation Centre Specialist, SunExpress
Standards Publishing
Wrycan & NFPA
By integrating DeltaCompare, Wrycan empowered the NFPA to reduce the time needed to create Redline publications from 70 hours to under 1 hour, cutting labour by 98.5% per new edition. They preserved pagination perfectly, automated comparisons across formats (print & HTML), and unlocked new digital products while slashing publishing costs.
Read the full customer story →“DeltaCompare transformed our publishing workflow. We reduced the time to produce redline standards from days to less than an hour, while maintaining perfect accuracy and layout.”
Daniel Reed
Managing Director, Wrycan
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
DeltaCompare compares documents and data of every type, from complex XML to web content, so every change is detected and delivered in the format you need.
XML & JSON
Perfect for structured data, configuration files, and product specifications. Capture attribute edits, structural moves, and hidden changes with precision.
HTML & XHTML
Ideal for websites, digital publishing, and content management systems. Produce clean, redlined output ready for review or publishing.
DITA & DocBook
Purpose-built for technical documentation and structured authoring. Handle large manuals and content reuse with ease.
Custom & Mixed Content
Configure DeltaCompare to support proprietary schemas or mixed text-and-data files. Flexible rules let you ignore trivial formatting and focus on what matters.
PDF
Ideal for review and regulated workflows. Compare PDFs at a content level to spot real text changes, not layout noise. Well suited to approvals and audits.
Microsoft Word
Made for collaborative editing and review. Track text, structure, and formatting changes, with clean redlined output that fits Word workflows.
Microsoft Excel
Built for data-heavy spreadsheets. Detect changes across cells, formulas, and sheets while ignoring minor layout shifts.
Microsoft PowerPoint
Compare slide decks with ease. Identify text and structure changes across slides to keep presentations aligned.
Don’t see the format you’re working with?
At DeltaXignia, we specialise in change management across a wide range of formats. If yours isn’t listed above, chances are we can still help. Fill in the form below and we’ll get back to you shortly.
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.
DeltaMerge
Smart Merging for Complex Documents
Bring multiple edits or branches together into one accurate, conflict-free document.
When multiple authors or branches create parallel changes, or when edits are made sequentially over time, DeltaMerge makes it easy to bring all contributions together into a single, consistent file.
✓ Merge 3+ versions into one trusted output ready for use.
✓ Auto-resolve conflicts with rules you control.
✓ Keep every valid change without breaking structure.
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 DeltaCompare?
DeltaCompare is an enterprise-grade solution that compares XML, JSON, and other structured documents with exceptional accuracy, expanding to Word, Powerpoint, Excel and PDF. It highlights every meaningful change, helping teams track edits, validate updates, and maintain complete content integrity.
How is DeltaCompare different from traditional diff tools?
Unlike line-by-line diff tools, DeltaCompare understands document structure and semantics. It detects real content changes while ignoring irrelevant differences like whitespace, attribute order, or formatting.
What formats does DeltaCompare support?
DeltaXignia supports a wide range of structured formats including XML, JSON, and domain-specific standards such as DITA, DocBook, and S1000D, as well as custom grammars. Designed for complex, structured content in industries like aerospace, publishing, and legal, our solutions are now expanding to include Office formats such as Word, Excel, and PowerPoint, along with PDF files.
Can DeltaCompare handle large or complex files?
Yes. DeltaCompare is optimised for performance, capable of processing large, deeply nested XML or JSON files containing thousands of changes, quickly, accurately, and reliably.
Can DeltaCompare integrate into automated workflows or CI/CD pipelines?
Absolutely. DeltaCompare offers APIs and command-line tools for seamless integration with CI/CD pipelines, CMS platforms, and automated validation workflows, ensuring accuracy at every stage.
