Private alternative to ChatGPT for data analysis

QueryVeil vs ChatGPT
for data analysis

ChatGPT's Code Interpreter is powerful — but it requires uploading your data to OpenAI's servers. QueryVeil gives you AI-powered data analysis without the upload. Everything runs in your browser.

ChatGPT Code Interpreter

  1. 1. Upload your entire file to OpenAI's servers
  2. 2. Wait for server-side processing (can take minutes)
  3. 3. AI runs Python code on their infrastructure
  4. 4. Data stored on OpenAI servers (retention policies apply)

QueryVeil

  1. 1. Drop file — loads into in-browser SQL engine instantly
  2. 2. AI sees only schema metadata, not your actual data
  3. 3. SQL executes locally in your browser via DuckDB WASM
  4. 4. Zero data upload. Verify in DevTools. Works offline.

Feature comparison

QueryVeilChatGPT
Data stays on your device
Files never uploaded to servers
Works fully offline
Local AI option
Verifiable privacy (DevTools)
Real SQL on actual dataPython sandbox
Instant file loading (no upload)
Multi-file joinsLimited
Schema persistence across sessions
Auto data profiling on load
No account required for demo
Free tierLimited
Deep multi-step analysisPro
General-purpose AI assistant
Custom Python code execution

When to use which

Use ChatGPT when:

  • •You're working with non-sensitive, public data
  • •You need general-purpose AI beyond data analysis
  • •You want Python-based custom analysis scripts

Use QueryVeil when:

  • Your data is sensitive, confidential, or under NDA
  • You're in a regulated industry (finance, healthcare, legal)
  • You need to work offline or on an air-gapped network
  • You analyze data regularly and want 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