PondPilot is a many-to-many data format converter that runs entirely in your browser. Open a file in any supported format, query or transform it with SQL, and export to any other format. No servers, no uploads, no accounts.
Supported Formats
Import: CSV, Parquet, JSON, Excel (.xlsx), DuckDB, SAS (.sas7bdat), Stata (.dta), SPSS (.sav)
Export: CSV, Parquet, JSON, Excel
That’s a lot of conversion paths. SAS to Parquet? Done. SPSS to CSV? Easy. Excel to JSON? Sure. Every combination works because PondPilot loads any input format into DuckDB’s SQL engine and writes any output format from there.
How It Works
PondPilot runs DuckDB as WebAssembly in your browser. Statistical formats (SAS, Stata, SPSS) are handled by duckdb-read-stat, an open-source extension maintained by the PondPilot team. Everything processes locally — your files never leave your machine.
Transform During Conversion
This isn’t a dumb file converter. You have a full SQL engine between input and output:
SELECT
TRIM(name) as name,
amount::DECIMAL(10,2) as amount,
STRFTIME(date_col, '%Y-%m-%d') as date
FROM input_data
WHERE amount > 0
Clean, filter, aggregate, join multiple files — then export the result.
Why Not Use Python?
You could. But PondPilot is faster for ad-hoc conversions: open a browser tab, drop a file, export. No virtual environments, no pip install, no scripts to maintain. It’s the path of least resistance when you just need to convert a file and move on.
Privacy First
Data format conversion often involves sensitive files — healthcare data in SAS, survey responses in SPSS, financial data in Excel. PondPilot’s client-side architecture means zero exposure. There’s no server to breach because there is no server.
Get Started
Open app.pondpilot.io and convert your first file.