Free online NDJSON-to-FEATHER converter — upload a NDJSON file and download a FEATHER. Fast, private, no signup.
Drop your NDJSON file into the converter above — we auto-detect the real format from its bytes, convert it, and give you a FEATHER to download. No software to install.
Yes. Convert NDJSON to FEATHER for free right in your browser, with no account needed to get started.
Your file is transferred over an encrypted connection and anonymous uploads are temporary. You can also view and strip metadata (location, device, author) before you download.
Newline-delimited JSON (one record per line). Feather — fast on-disk Apache Arrow tables for data science.
Convert NDJSON to: JSON · YAML · PARQUET · ARROW · AVRO · DTA · ORC · XML · PDF · XLSX
Convert to FEATHER from: ARROW · AVRO · DTA · JSON · ORC · PARQUET · XML · YAML · CSV · ODS