Free online data tools

5 tools

Tools for looking at and reshaping data without a spreadsheet or a database: CSV viewers, JSON explorers, SQL playgrounds and converters between table formats. Check the size limit and whether files are processed locally before you load anything sensitive.

Showing 1–5 of 5

0.578score
JSON2CSV.com
JSON2CSV
In-browser JSON to CSV converter with an editable table preview and one-click export.
ArtifactNo sign-upIn-browserdata tools
0.578score
SQLite Fiddle
SQLite project
Official SQLite WebAssembly shell for running SQL in a private in-browser database.
ArtifactNo sign-upIn-browserdata tools
0.578score
SQLite Viewer Web App
SQLite Viewer
Open an SQLite file in the browser to inspect tables and run queries without upload.
ArtifactNo sign-upIn-browserdata tools
0.578score
TableConvert: Excel to Markdown
TableConvert
Paste spreadsheet cells and receive a Markdown table.
ArtifactNo sign-upIn-browserdata tools
0.569score
Parquet File Viewer
DevTools Daily
Loads a .parquet file with DuckDB-Wasm so you can browse rows, see column types, query it in SQL and save a CSV or JSON copy.
ArtifactNo sign-upIn-browserdata tools