Developer Tools●●Solid
QueryPad – Browser SQL Playground for CSV, JSON, and Parquet Files
DuckDB-Wasm runs SQL queries on dropped files directly in your browser, no server needed.
CozySlick
kiyeonjeon
112mo ago
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GitHub Repository
Drop a file. Query with SQL. Visualize and share. All in your browser. Powered by DuckDB-Wasm.
24 starsTypeScript
QueryPad – I got tired of opening Python just to query a CSV
by kiyeonjeon·Mar 22, 2026·5 points·4 comments
AI Analysis
●●SolidSolve My ProblemSlick
DuckDB-Wasm in browser with shareable URLs—better than opening Python.
Strengths
- •Compresses data + query into single shareable URL—no server storage needed
- •Monaco editor with table autocomplete, virtualized tables up to 10K rows
- •AI SQL assistant runs entirely in browser with user's own Anthropic key
Weaknesses
- •100 MB file limit restricts larger dataset analysis
- •Browser SQL on CSVs exists (Observable, various DuckDB-Wasm demos)
Category
Target Audience
Data analysts, developers querying CSVs without spinning up databases
Similar To
Observable · CSV Lens · DuckDB CLI
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