UTL-X Transformation Engine

UTL-X is a modern, format-agnostic data transformation engine. Write your transformation logic once in a single declarative language and apply it to any supported format — XML, JSON, OData, YAML, or CSV. Both instance documents and schemas are first-class.

Sidecar-ready for Azure messaging

UTL-X ships as a container wrapped with Dapr as its sidecar, so it plugs into Azure messaging the moment you deploy it:

• Azure Service Bus — consume from queues and topics, publish transformed messages to queues, topics, or dead-letter destinations. Lock renewal, retry, and DLQ behavior are handled by the sidecar.
• Azure Event Hubs — ingest streaming events, transform them in-flight, and publish to another hub or a downstream sink. Partition keys, consumer groups, and Azure Storage checkpointing are configured declaratively.
• Azure Key Vault — broker credentials, API tokens, and connection strings are resolved at runtime via secret references; no plaintext secrets in your deployment.
• Microsoft Entra ID — managed identity / workload identity authentication to brokers, no connection strings required.

Because the integration runs through Dapr, the same UTL-X container also runs on AWS, GCP, on-prem Kubernetes, or self-hosted — the broker is a YAML configuration change, not a code change. No vendor lock-in.

Key features

• Open source under AGPL-3.0
• 650+ built-in standard library functions
• Fast — under 100 ms cold start, 15 MB footprint
• Strong type system with compile-time checking
• Instance document transformation: XML, JSON, OData, YAML, CSV
• Schema transformation: XSD, JSCH (JSON Schema), Avro, Protobuf, OSCH (OData EDMX), TSCH (Frictionless Table Schema)
• Production-grade observability — OpenTelemetry traces, Prometheus metrics, mTLS between sidecars (Dapr Sentry, 24-hour rotating workload certificates)

Compare

• vs. XSLT — modern syntax, works with all formats, not just XML
• vs. DataWeave — fully open source, no MuleSoft dependency
• vs. custom code — declarative, maintainable, type-safe, version-controlled
• vs. proprietary iPaaS transformation — runs anywhere Dapr runs; transformation IP is portable