JSON Pastebin — Format & Share JSON

JSON survives chat tools badly. Paste a config or an API response into Slack and it collapses into one unreadable horizontal line; drop it into a Google Doc and the braces lose their colors and the indentation drifts. files.link is a JSON pastebin built for the format: paste your payload, get back an unlisted link that renders the JSON with full syntax highlighting and byte-for-byte preserved whitespace, so keys, strings, numbers, and nesting all read the way you intended.

The highlighter handles whatever you give it — pretty-printed objects, minified blobs, deeply nested structures, and line-delimited JSONL/NDJSON where each record sits on its own line. It does not reformat your input: if you want pretty output, paste pretty JSON (pipe it through jq . or python -m json.tool first); if you want the exact minified bytes preserved for a bug report, you get exactly those.

That fidelity matters when the whitespace is the bug — a stray trailing comma, an off-by-one nesting level, a duplicated key — and reformatters would hide it. The typical workflows are sharing an example request/response while debugging an integration, handing a teammate a webhook payload that broke a parser, posting a sample API response in a ticket, or attaching a config fragment to a review.

Because the paste is unlisted (unguessable UUID, view page set to noindex) you can do this without the snippet leaking into search engines or a public feed, and signed-in users add a custom expiry so a sensitive payload self-deletes after 1 hour, 24 hours, 7 or 30 days. Size-wise, anonymous pastes hold up to 100KB and authenticated pastes up to 1MB; for payloads beyond that, upload the JSON as a file and share its CDN URL instead — which also makes it directly fetchable by a script, useful for stubbing an API response.

Versus inline JSON viewer websites that wrap your data in ads and trackers, or Slack code blocks that don't survive a copy-paste round trip, a clean unlisted link with real highlighting and no ads is simply more shareable. For other structured formats, YAML and XML have their own highlighted paste pages; for free-text snippets see the generic private paste link.