🪶 ParquetView

100% private, in-browser Parquet viewer & converter. Open .parquet files instantly — they are parsed on your device and never uploaded. No signup, no ads, works on desktop and mobile.

🔗 Try it: https://ggyg5gxksw.page.coze.site

Features

• 🔍 Search across all columns
• ↕️ Sort by any column
• 📄 Pagination and lazy row loading
• ⬇️ Export to CSV and JSON
• 🔒 Files never leave your browser — safe for confidential data
• 📱 Mobile-friendly, responsive UI
• Supports Snappy, Gzip, Zstd and LZ4 compression

How it works

ParquetView is a static website with no backend. All parsing runs locally in the browser using:

• hyparquet — Parquet reader
• hyparquet-compressors — Snappy/Zstd/Gzip/LZ4 codecs
• WebAssembly + browser APIs

Because there is no server, there is nowhere for your data to be uploaded to.

Project layout

assets/        Shared CSS, browser Parquet engine, sample file
index.html     Viewer
parquet-to-csv/   Converter landing page
parquet-to-json/  Converter landing page
what-is-parquet/      Guide
how-to-open-parquet/ Guide
open-parquet-windows/ open-parquet-mac/ open-parquet-excel/
parquet-vs-csv/
build_site.py  Static site generator

Run locally

python3 -m http.server 8000
# open http://localhost:8000

Build the site

python3 build_site.py   # outputs ./site

License

MIT