Schemasift icon
One-time iPhone and iPad app

Schemasift

Profile recorded schema changes, weight affected rows and consumers, classify type and nullability drift, and preserve migration evidence.

Focused field tools

Field Identity

Use stable source, table, path, field, and version identifiers.

Types

Compare physical type, logical meaning, units, precision, and coercion behavior.

Nullability

Separate missing, unknown, inapplicable, redacted, and failed parsing states.

Cardinality

Watch new, removed, merged, or unexpectedly exploding values.

Consumers

Inventory transformations, models, dashboards, exports, APIs, and scripts.

Backfill

Plan rate, ordering, checkpoints, idempotency, verification, and restart.

Schemasift analyzes manually entered or imported schema evidence; it does not inspect live databases, prove data quality, or execute migrations. Validate source semantics, sampling, consumers, constraints, backfills, rollback, and production observability directly.