Questin

Analyze Data in English with Confidence

Every business worth its salt has data. Everyone wants to ask questions of it. Today with the help of LLMs we can. But LLMs hallucinate making them less suitable for business decisions. Questin is a tool that combines the power of LLMs with a robust execution engine to deliver accurate, explainable answers to your data questions - all in plain English.

Natural Language

Ask questions in plain English

Open your browser, load your data from CSV files, SQL, others and ask in plain English. Questin breaks down your question into a step by step procedure and returns the answer.

Natural language -> execution plan
Explainable

See and edit every step

Inspect the steps, verify interim results, and ask Questin to modify any step and rerun - all in English - until it is right.

Step-by-step, editable plan
Reusable

Save questions to reuse

Pin often-repeated questions, add parameters, and rerun it without incurring LLM cost.

Saved, parameterized questions
Private

Your data stays on device

Private by design. Questin runs locally - your data stays with you on your device.

Local-first, on-device
Performance

Millions of rows in seconds

Columnar execution, Smart Indexing and caching deliver fast answers on real-world datasets.

Fast at scale
Data Sources

Works across data sources

CSV (supported)

SQL, No-SQL, Data lakes, Cloud stores (coming soon)

more connectors soon

Be an early partner

Help shape Questin by joining the private beta.