Private alternative to Claude for data analysis

QueryVeil vs Claude
for data analysis

Claude's analysis tool is excellent at reasoning — but it requires uploading your data to Anthropic's servers. QueryVeil keeps your files local and still gives you AI-powered insights. No upload, no compromise.

Claude Analysis Tool

  1. 1. Upload your file to Anthropic's servers
  2. 2. Data processed in cloud sandbox environment
  3. 3. Results generated server-side, returned to browser
  4. 4. Session-based — no persistence, context lost on close

QueryVeil

  1. 1. Drop file — loads into in-browser SQL engine instantly
  2. 2. AI sees only schema metadata, not your actual rows
  3. 3. SQL runs locally — results never leave your browser
  4. 4. Persistent — schemas, queries, and conversations survive sessions

Feature comparison

QueryVeilClaude
Data stays on your device
Files never uploaded to servers
Works fully offline
Local AI option
Verifiable privacy (DevTools)
Real SQL on actual dataJS sandbox
Instant file loading (no upload)
Schema persistence across sessions
Auto data profiling on load
Multi-file joins
No account required for demo
Free tierLimited
Advanced reasoning qualityPro
General-purpose AI assistant
Custom code execution

When to use which

Use Claude when:

  • •You're doing exploratory analysis on non-sensitive data
  • •You need reasoning beyond SQL (text analysis, classification)
  • •You want to generate visualizations with custom code

Use QueryVeil when:

  • Your data is sensitive, confidential, or under NDA
  • You analyze the same datasets repeatedly over time
  • You need offline or air-gapped analysis
  • You want SQL-based analysis with persistent schemas

See the difference yourself

Try QueryVeil with sample data — no signup, no upload. Open DevTools and verify that nothing leaves your browser.

Try the demo Sign up free