Manual changes are fragile
A single wrong character can break a record, a length rule, a timestamp, a trailer counter or a downstream import.
Specification-driven File Automation
Maracuja
Complex structured files. Fully controlled.
Maracuja helps teams analyze, generate, manipulate and validate complex structured files through a flexible, user-maintained Specification — with control over records, modules, timestamps, IDs, headers, trailers, XML structures and traceable reports.
Built from 25 years of hands-on experience — and created to pass that knowledge on.
25 yearsreal billing and test data experience
Practical originbuilt to solve daily project work
XML + Flatfilesclassic and modern file structures
User-maintainedflexible Specification logic
Built from real project work, not from a feature list.
Maracuja was created from 25 years of hands-on experience with billing systems, structured files, migrations, regression testing and complex test data preparation.
It started as a practical answer to daily work that became too repetitive, too fragile and too dependent on manual file editing, one-off scripts and expert memory.
The goal was simple: make complex file work controllable, repeatable and easier to verify.
Maracuja is also a way of passing on that experience: a legacy of practical knowledge about files, formats, validation, generation and controlled test data workflows.
“Maracuja is the experience I wish every project team had available before the file chaos starts.”
That is why the platform focuses on Specification, traceability, validation and controlled automation — not on flashy shortcuts.
Complex file work should not depend on manual file hacking.
In many projects, structured files are still changed with editors, Excel, one-off scripts, copy/paste and trial & error. That becomes risky when files contain timestamps, IDs, separators, fixed lengths, headers, trailers, XML paths, sums, counters and business-critical validation rules.
Regression data is hard to repeat
Teams often struggle to recreate the same test scenario with the same structure, time window and file logic.
Experts become bottlenecks
File knowledge lives in people, notes and scripts instead of one controlled and reusable automation process.
Maracuja understands files through a central Specification.
Not blind text replacement. Maracuja knows records, modules, items, positions, separators and validation rules.
Flexible by design. Specifications can be maintained by the user, so formats, records, modules and item rules can evolve without rewriting the whole automation.
Built for scale. Maracuja is designed for thousands of files and hundreds of thousands of records in repeatable batch and regression workflows.
Not random scripts. The same Specification drives analysis, manipulation, generation and validation.
Not hidden magic. Result files and reports make changes visible, repeatable and auditable.
One platform for file automation workflows.
Maracuja brings format knowledge, transformation logic and validation into a controlled workflow for complex file-based environments.
Analyze
Inspect structured files and make complex records readable instead of searching raw data manually.
Generate
Create synthetic test files from rules, input tables, reference records and format definitions.
Manipulate
Change timestamps, IDs, subscriber data, file names, headers and trailers in a controlled way.
Validate
Detect format issues before invalid files reach downstream systems or regression environments.
Scale
Work with thousands of files and hundreds of thousands of records across large batch runs and regression scenarios.
Report
Document what changed, which records were affected and where errors or warnings appeared.
From Specification to controlled output.
Maracuja turns file knowledge into a repeatable process: define the structure once, then analyze, manipulate, generate and validate files with traceable results.
Define
Maintain the Specification for formats, records, modules, items, detection rules and validation logic.
Load or generate
Use existing source files or generate new files from input tables and rule-based configuration.
Transform and validate
Manipulate timestamps, IDs, subscriber data, headers, trailers and file names with controlled rules.
Export and report
Create result files with details, error information and a clear audit trail of what changed.
Built for teams working with complex file environments.
Maracuja is strongest where test data is structured, large, sensitive to format rules and difficult to reproduce manually.
Ideal use cases
Billing, CDR, charging, rating, migration data, regression files, batch interfaces, XML structures and header/trailer based file flows.
Key advantage
Users can maintain the Specification themselves, so automation can evolve when formats, fields, validation rules or business scenarios change.
Less manual work. Less risk. More repeatability.
Maracuja is built for teams that need reliable test files, migration data, regression scenarios and structured file transformations without depending on fragile manual processes.
Maintain your own formats
Keep file logic in a flexible Specification that users can extend and maintain as formats change.
Accelerate regression testing
Recreate scenarios, manipulate large data sets and generate controlled output faster.
Find issues earlier
Expose invalid structures, time values, counters, lengths or detection problems before target systems fail.
Experience, structured and passed on.
Maracuja is built to preserve hard-earned project knowledge and turn it into something reusable: file understanding, validation discipline, repeatable test data workflows and controlled automation for teams that cannot afford fragile manual processes.
Request a demo or ask a question.
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Turn manual test data work into a controlled automation process.
Maracuja makes complex structured files controllable, repeatable and traceable — shaped by 25 years of real project experience and built as a practical legacy for teams facing the same file challenges.
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