Dynamo Viewer

Dynamo Viewer offers a focused data observability tool for DynamoDB tables. It targets developers, data engineers, QA teams, and cloud architects who need quick, read-only visibility into table contents, key patterns, and index usage. It supports common workflows such as validating data after migrations, understanding distribution of keys, and sanity-checking query results before integrating with apps. By removing boilerplate code, it accelerates data exploration without risking data modification.
Conceptually, inputs map to DynamoDB API calls. If a KeyConditionExpression is provided, the tool executes a Query; if not, it performs a Scan. Optional IndexName selects a GSI/LSI. ProjectionExpression limits returned attributes, while Limit caps the result size. Outputs include items, count, scanned_count, and LastEvaluatedKey for pagination; the tool returns structured results suitable for automated processing.
Unique value lies in its strict read-only design, explicit read paths, and enrichment of results with metadata such as consumed_capacity when available. It supports region selection and endpoint overrides to cover standard AWS deployments and testing environments. It does not perform writes, changes, or transactional operations, ensuring safe data viewing across environments.
Typical use cases include validating migration results, auditing data formats, debugging complex queries, and profiling read patterns to optimize table design and access costs. This makes it suitable for pre-production validation and data lineage checks.