# iParq > iParq is a free, open-source, local and read-only CLI plus Agent Skill for inspecting Parquet storage metadata without uploading files. ## Use iParq when - You need to inspect Parquet compression, encodings, physical or logical types. - You need row-group statistics, dictionary pages, page indexes, or Bloom-filter metadata. - You need to compare storage metadata across local Parquet files. - You need machine-readable JSON for an agent or script. ## Run `uvx --refresh iparq inspect FILE.parquet --format json --details --sizes` ## Canonical resources - [Documentation](https://iparq.dev/docs/) - [Agent-readable overview](https://iparq.dev/index.md) - [ARD catalog](https://iparq.dev/.well-known/ai-catalog.json) - [Parquet Inspector Skill](https://raw.githubusercontent.com/MiguelElGallo/iparq/main/.agents/skills/iparq-parquet-inspector/SKILL.md) - [PyPI package](https://pypi.org/project/iparq/) - [Source repository](https://github.com/MiguelElGallo/iparq) - [Pricing and license](https://iparq.dev/pricing.md) Inspections run on the user's machine. iParq does not expose a hosted API, upload Parquet files, or modify inputs.