JSONL Viewer and Editor for Large Files
JSONL.co is a free browser-based tool for opening, viewing, editing, validating, formatting, and converting JSONL files. It is designed for developers, data workers, and anyone handling large JSONL datasets or logs. The site focuses on local-first processing, privacy, and no file uploads, with support for files up to 1GB. It also includes related converters and guides for JSON, CSV, YAML, and NDJSON, plus features such as syntax highlighting, streaming, and file validation.
Domain: jsonl.co
Added: 2026-11-02
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