JSON to Markdown

Paste valid JSON into the box above and the tool returns Markdown with the structure preserved as headings and lists. No server upload — conversion runs entirely in your browser so the data stays private even for sensitive JSON.

No. This converter is 100% client-side JavaScript — your JSON is parsed and converted in your browser. We never see the content. Safe to use with sensitive data like Stripe responses, internal API payloads, or customer exports.

Each level of nesting becomes a deeper Markdown heading. Top-level keys become H2, second-level keys become H3, and so on (capped at H6, the deepest standard Markdown heading). Arrays of objects render as bullet lists with each object's fields as sub-bullets.

Yes — that's one of the most common use cases. A 500-line JSON response from a typical REST API converts to roughly 30-40% fewer tokens as Markdown because you lose the quotes, commas, and braces overhead. That difference often lets you fit two or three API samples in the same context window.

Long string values render as paragraph text by default. If a value looks like code (starts with common code patterns), it renders inside a fenced code block to preserve formatting. For very long values, the converter doesn't truncate — control truncation in your prompt or docs after copying.

Not directly — this tool expects a single valid JSON document. For JSONL or NDJSON (one object per line), wrap the entries in a JSON array with brackets and commas first, then paste. We may add JSONL support if it's a common request.