Built with DuckDB-Wasm · Zero server upload
QueryCanvas
Explore CSV and JSON files with DuckDB SQL entirely in your browser, then instantly share the live workspace with anyone.
Fast, flexible querying
Powered by DuckDB-Wasm, QueryCanvas can execute virtually any DuckDB-compatible SQL across CSV or JSON datasets directly in your browser.
Assisted editing
An adaptive SQL editor provides keyword and schema-aware autocomplete plus one-tap execution shortcuts to keep you in the flow.
Instant sharing
Workspace state is compressed into the URL fragment, so you can bookmark or send a link without uploading any data to a server.
Workspace
Bring your own CSV or JSON
Starting DuckDB in your browser...
Drop CSV or JSON files here
or click Import to pick files
Accepted: .csv, .json
Tables
0 loadedImport data to see schema details.
AI SQL Copilot
Describe the insight you want—our AI copilot will draft SQL using your current tables.
SQL Editor
Press Cmd/Ctrl + Enter to run
Query results
Frequently asked
Everything runs locally in your browser, so importing sensitive data is safe. Here are a few common questions.
How do I save my work?
Every query and file reference is encoded in the URL fragment. Bookmark the page or copy the share link to revisit the exact workspace later.
Why didn't my file parse correctly?
DuckDB's autoparse usually nails common CSV/JSON formats, but truly irregular files may require light cleanup before importing.
Can I use QueryCanvas on mobile?
It works best on desktop browsers where DuckDB-Wasm can allocate enough memory and you have room for the editor plus results.
What analytics do you collect?
QueryCanvas relies on lightweight, privacy-friendly analytics that only log host + pathname—workspace data inside the hash never leaves your device.
Who built QueryCanvas?
Aditya Kasyap, a Data Scientist specializing in AI/ML and building scalable data tools. QueryCanvas brings enterprise-grade SQL analytics to your browser with zero infrastructure.
About QueryCanvas
Built by Aditya Kasyap
Data Scientist and AI professional with expertise in machine learning, NLP, LLMs and building scalable AI tools. QueryCanvas combines DuckDB's powerful analytics engine with browser-based privacy to deliver SQL analysis without infrastructure overhead. Currently leading AI-driven data analysis projects while studying AI at IIT Ropar.