jsonl.co

Free online JSONL viewer and editor that opens files up to 1GB locally in the browser.

A browser-based JSONL (JSON Lines/NDJSON) viewer and editor. Opens, searches, and edits files up to 1GB via streaming with all processing done locally — no uploads or sign-up. Includes syntax highlighting, real-time validation, side-by-side raw/parsed view, find & replace, and converters between JSONL, JSON, and CSV. Also available as a VS Code extension.

Category: Developer productivity
Pricing: free
Free tier: yes
API: no
MCP server: no
SDK: no
Open source: unknown

#jsonl #ndjson #json #csv #viewer #editor #validator #converter

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Listed 2026-11-05 · last verified 2026-11-05 · extracted by @cf/zai-org/glm-5.3-flash · confidence 0.9

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API

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