Find what’s wrong in your XML & JSON, in seconds
Analyze thousands of files at once, transform them with XSLT, extract values and generate test data. Everything runs in your browser, so your data never leaves your computer.
- 100% local processing
- Nothing to install
- Free plan
What’s new
New in Nodeflip
Data Transform
Apply an XSLT stylesheet to one file, many files or every XML file in a ZIP. Preview the result while you edit, and see what any selected lines of the stylesheet produce.
Explore Data Transform Data Analysis & Tree ViewGo to a path
Paste a path in XPath or dot notation and jump straight to that attribute or node. Copy XPath from any value to take the path with you.
See how it works Data AnalysisLarger archives, faster filtering
ZIP archives with thousands of files are analyzed with far less memory, filtering is 3–4 times faster with many files, and your analysis stays put when you switch modules.
Explore Data AnalysisWhy Nodeflip
Stop Fighting Your Data
Common data challenges that slow down teams and break systems, and how Nodeflip solves them.
APIs that suddenly change and break integrations
Solution: Schema Drift & Structure Comparison instantly reveal added/removed fields and breaking changes.
Messy, inconsistent XML/JSON files
Solution: Automatically detects structures, groups similar files, and highlights optional/missing attributes.
BI teams losing trust in dashboards
Solution: Grid and tree views show what's really in the data, with instant aggregates and counts.
ETL pipelines failing on unexpected data
Solution: Validate data before ingestion with tolerance-based structure grouping and global filters.
Root cause analysis takes hours
Solution: Load thousands of files at once, filter down interactively, and instantly find the exact XML/JSON causing the issue.
Converting files between formats, one at a time
Solution: Data Transform applies one XSLT stylesheet to a whole ZIP archive and gives you a new ZIP with the same names and folders.
Data Analysis Module
Find the root cause in seconds, not hours
Stop hunting blindly through thousands of XML/JSON files. Nodeflip discovers the structures in your files and pinpoints the exact ones that are missing data, breaking your API, or failing your pipeline.
- Pinpoint issues with associative filtering across every attribute
- Analyze thousands of files* and large ZIP archives directly in your browser
- See structure drift and missing attributes at a glance
- Go to any path you type or paste, and copy the XPath of any value
*Performance depends on device capabilities
Data Transform New
XSLT for one file or a whole archive
Write or load a stylesheet, watch the result update as you type, and run it over every file you select. No processor to install, and nothing is uploaded.
- XSLT 1.0, 2.0 and 3.0, run by SaxonJS in your browser
- Batch transform several files or every XML file in a ZIP
- Live preview with input and result side by side
- See what selected lines produce to debug a stylesheet step by step
Features
Powerful Features for Data Professionals
Built for data analysts exploring unknown datasets, developers debugging APIs, ETL engineers validating pipelines, and BI teams ensuring data quality.
Data Analysis Module
Analyze thousands of XML and JSON files at once. Discover structures, filter associatively, detect schema drift and find the files behind a problem.
Explore Data AnalysisData Transform New
Apply XSLT 1.0–3.0 stylesheets to files and ZIP archives, with live preview and stylesheet parameters.
Learn moreAdvanced Grid View
Turn XML and JSON arrays into sortable, filterable tables. Large lists are paged and nested tables stay collapsed until you open them.
Learn moreTree View Navigation
Navigate deep hierarchies with expandable nodes, or type a path in the XPath bar to jump straight to a node.
Learn moreCompare Files
Compare files side by side in a diff viewer with syntax highlighting to spot changes between versions.
Learn moreTest Data Generator
Generate realistic files from a template with lists, auto-increment, UUIDs, references and custom JavaScript.
Learn moreData Extractor
Pull specific values out of many files or a ZIP with XPath expressions, and export the result as CSV.
Learn moreData Lineage
Trace values across files and visualize how data relates and moves through complex structures.
Learn moreBrowser Extension
Intercept XML and JSON downloads and open them directly in Nodeflip, without a manual upload.
Learn moreWhat users say
This tool is truly impressive, I love how easy Nodeflip makes it to work with XML and JSON. The Tree Grid view is brilliant, and the Data Analysis module shows patterns and structures I’ve never seen anywhere else! It saves me hours when doing root cause analysis — I hardly ever open XMLSpy these days.
Privacy
100% Local Processing
Browser-based processing keeps your sensitive data completely private.
Your data stays with you
Files are parsed, analyzed and transformed in your browser and never touch our servers. A good fit for sensitive business data and compliance requirements.
Fast, with no round trips
Local processing means no upload time, no network latency and no server-side queue between you and the result.
Nothing to install
No setup and no dependencies. Open your browser, load a file and start working.
Pricing
Start free, upgrade when you need more
Free
€0 always free
- Tree, Grid and Source views
- File comparison and data lineage
- Data Transform (XSLT)
Pro
€49 per year, ex VAT
- Unlimited files and ZIP archives
- Data Extractor, Test Data and Data Transform with ZIP support
- Data Analysis for up to 100 files
Pro+
€99 per year, ex VAT
- Everything in Pro
- Data Analysis for an unlimited number of files
- Deep data insights
Pro and Pro+ start with a 14-day free trial. Compare plans