Source systems change without warning. A renamed column, a removed API field, or a type change can cascade into hours of debugging.
Upstream teams rename columns, change types, or drop fields — and nobody tells you.
APIs become unavailable or databases go offline. Your pipeline runs anyway and silently produces stale data.
Nulls where you expect values, strings instead of integers, dates in the wrong format. Your transforms crash.
A complete pre-flight validation toolkit designed for production data systems.
Automatically compare source schemas against expected structure. Detect new columns, dropped fields, and type changes before your pipeline ingests bad data.
Receive instant notifications via Slack, Email, PagerDuty, or Webhooks. Know about source changes the moment they happen — not after a pipeline failure.
Define data quality rules like null thresholds, uniqueness constraints, and value ranges. PreETL enforces them on every source check.
Track every schema change over time with a full audit log. Generate reports showing when, what, and how your sources have evolved.
Plug PreETL into Airflow, Dagster, Prefect, or any orchestrator. Block pipeline runs automatically when validation fails.
Continuously monitor API uptime, database connections, and rate limits. Know when a source goes down before your pipeline discovers it.
Four simple steps to bulletproof your data pipelines.
Point PreETL at your databases, APIs, S3 buckets, or any data source. Setup takes under 2 minutes with our guided wizard.
Set your expected schema, data types, null thresholds, and custom rules. Or let PreETL auto-discover and snapshot your current schema.
PreETL runs validation checks before every pipeline execution. Schedule checks or trigger them via API from your orchestrator.
When validation fails, PreETL blocks the pipeline and sends you a detailed notification with exactly what changed and what to do next.
Connect to databases, APIs, cloud storage, and data warehouses. Plug into your existing orchestration tools.
Start free. Scale as you grow. No hidden fees.
For individual developers and small projects.
For growing teams with critical pipelines.
For organizations with advanced requirements.
Join 2,400+ data engineers who use PreETL to catch pipeline failures before they impact downstream systems and business decisions.
No credit card required · 14-day free trial · Cancel anytime