Show HN: Dbxlite – Query 100M+ rows in a browser tab, no install
hfmsio Friday, December 12, 2025What started as a Claude Code experiment turned into a browser-native SQL workbench I now use daily.
Runs DuckDB WASM entirely in your browser. No backend, no installation, no signup.
- Query local files (CSV, Parquet, Excel) – data never leaves your machine - Handles 100M+ rows, 50GB+ files in a browser tab - Full UI: Monaco editor, schema explorer, spreadsheet-style results grid - Share SQL via URL – anyone can run your query instantly - BigQuery connector built-in (Snowflake coming)
v0.2 – actively developing. Feedback welcome.
GitHub (MIT): https://github.com/hfmsio/dbxlite
Summary
The article explores the use of the SQL COALESCE function, which allows replacing null values with a specified value. It demonstrates how COALESCE can be used to handle missing data and provide default values, and includes examples of its application in various SQL queries.
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Summary
sql.dbxlite.com