Select/Arrange Columns in JSON Lines Data

Select/arrange columns in your JSON Lines / NDJSON data quickly

Drop your JSON_LINES (.jsonl) file here (or click to browse).
(100 MB or less file)
Sign-up to upload larger files
Select Columns Tools JSON Lines Tools
Convert JSON Lines using an API
Select Columns

This tool gives you the power to customize the layout of your JSON Lines / NDJSON file by selecting which columns to include and rearranging their order. Whether you're trying to focus on key data, remove unnecessary fields, or change the column sequence for compatibility, it’s all possible in just a few steps. It's especially useful for preparing files for upload, creating reports, or simplifying large datasets by hiding what you don't need.

JSON Lines / NDJSON

JSON Lines (also known as NDJSON β€” Newline Delimited JSON) is a text format where each line is a self-contained, valid JSON value, typically a JSON object. It is widely used for streaming data, log files, and large data exports because files can be read and written one record at a time without loading the entire document into memory. Common file extensions are .jsonl and .ndjson.