Parquet Viewer
Open & query Parquet, CSV, SQL
Free · In-App Purchases
Open Parquet, CSV and JSON on your Mac. Inspect schema and stats, run SQL, and export — all offline. Optional AI turns plain English into SQL. Your data stays local.
Parquet Viewer is a fast, private desktop app for opening and exploring data files on your Mac. Drag in a Parquet, CSV, TSV, JSON, or JSONL file — or a whole folder of partitioned Parquet — and start inspecting, querying, and exporting in seconds. A native DuckDB engine reads and queries your files right on your Mac, so your file contents never leave your machine.
Whether you're a data engineer checking a partition, an analyst sanity-checking an export, or a developer debugging a pipeline, Parquet Viewer is the fastest native way to see what's actually in your files.
PRIVATE BY DESIGN
• Files are read and queried entirely on your Mac — your file contents never leave it
• No uploads and no account required
• Viewing, SQL, and export work fully offline
• Only the optional AI assistant goes online — it sends your question and column names (never your data) to generate SQL
OPEN ANYTHING
• Parquet, CSV, TSV, JSON, and JSONL files
• Folders of partitioned Parquet, treated as one dataset
• Remote https:// URLs — streamed directly, nothing stored
• s3:// paths — enter your keys in the app, or use your environment credentials
INSPECT WITH CONFIDENCE
• Browse millions of rows with smooth scrolling
• Full schema with column types
• Per-column statistics: count, nulls, distinct, min/max, mean, std dev
• Value distributions and top values at a glance
• Row group and file size details
FILTER, SORT & QUERY
• Click to sort and search values across columns
• Write real SQL against your data in a built-in editor
• Format, run, and reset queries instantly
• Open multiple views in tabs to compare slices side by side
ASK AI TO WRITE THE SQL
• Describe what you want in plain English
• Get a ready-to-run SQL query with an explanation
• Tweak and run it yourself — you stay in control
• Requires an internet connection; sends only your question and column names
EXPORT CLEAN SLICES
• Export filtered or queried results to CSV, JSONL, or Parquet
• Keep just the columns and rows you need
PARQUET VIEWER PRO
Upgrade to Pro for power workflows:
• Run SQL queries and turn plain-English questions into executable SQL
• Unlimited export rows (Free exports up to 1,000 rows)
• Priority AI responses with higher query limits
• Support ongoing development
Free mode is fully functional for viewing, searching, filtering, and sorting with no time limit. SQL is available with Parquet Viewer Pro, offered as auto-renewing weekly, monthly, or annual subscriptions.
Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically at the same price and duration unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the period ends. You can manage or cancel your subscription anytime in your App Store account settings.
Terms of Use: https://www.parquet-viewer.com/terms
Privacy Policy: https://www.parquet-viewer.com/privacy
Questions or a feature request? We'd love to hear from you.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
New guided onboarding, more reliable remote file opening, stronger security, and fixes throughout.
The developer, An Sinh Pham, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- An Sinh Pham
- Size
- 26.4 MB
- Category
- Developer Tools
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 14.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro Weekly $4.99
- Pro Annual $79.99
- Pro Monthly $9.99
- Copyright
- © 2026 AzComputing Limited