jsonl.co

jsonl.co

jsonl.co is a free, local-first JSONL viewer and editor. It streams .jsonl, .ndjson and .json files of 1GB+ straight in your browser. Nothing is uploaded and no account is needed.

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Founder
Arrison Trnong
Active
PlanFree
BusinessB2C

About jsonl.co

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.

Value & Audience

Value Proposition

Opens very large JSONL files in the browser without uploading them.

Problem Solved

Most editors freeze on huge JSONL files and need uploads.

Target Audience

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jsonl.co FAQ

Common questions about jsonl.co's features, pricing, and use cases

Is jsonl.co free to use?

Yes. jsonl.co is free to use.

What are some alternatives to jsonl.co?

Popular Developer Tools alternatives to jsonl.co include CodeSpy, DevOp and Global TTFB Checker.

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