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jsonl.co
Free JSONL viewer and editor for large files, in your browse
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jsonl.co is a free, local-first JSONL viewer and editor. It streams .jsonl, .ndjson and .json files of 1GB+ straight in your browser with syntax highlighting, real-time validation and a side-by-side raw/parsed view. Nothing is uploaded and no account is needed.
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Hi, we built jsonl.co because opening huge JSONL files in an editor kept crashing. It streams large files locally in your browser, so nothing is uploaded. Feedback is welcome.