“CSV”

Converts JSON to CSV in the browser and states that data is not sent to a server.

Converts comma-separated values into tab-separated values.

Converts CSV rows into an XML document.

Converts an array of JSON objects to CSV and detects the column headers automatically.

Converts pasted or uploaded CSV into JSON.

Turns pasted JSON into CSV.

Converts CSV rows into a YAML list.

Flips a CSV table so rows and columns trade places.

Exchanges the positions of two columns in a CSV file.

Plots rows of a CSV with latitude and longitude columns as markers, configured through URL parameters.

Inserts new columns into a CSV file at a position you choose.

Rearranges CSV data so rows become columns.

Opens CSV, TSV or log files for searching and filtering by column.

Reads a CSV in the page and reports each column's type, gaps, spread and outliers, then drafts a data dictionary to copy.

Swaps the delimiter in a CSV file, for example from commas to semicolons.

Scans a CSV file for rows with missing or empty fields and lists them.

Visualises JSON, YAML, CSV and XML as an interactive node graph and lets you edit, query and validate the data.

Try the Papa Parse CSV parser on pasted or uploaded text and see the parsed rows and config effects.

Open spreadsheet files such as XLSX, XLS and CSV in the browser and convert them to other formats.

Load CSV, GeoJSON or other geodata and explore it as layered maps with filters and time playback.

Postgres running in the browser through PGlite, paired with an AI assistant for schemas, CSV imports and diagrams.

Configurable random test data generator exporting to SQL, CSV, JSON, XML and more.

Datasette running in the browser through WebAssembly to explore SQLite and CSV files.

Review pane for calibrating an LLM judge: load a promptfoo CSV, mark your own labels and see where they differ from the judge.