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Guide

Embedding the JSON formatter

Use themed embeds beside API docs or admin consoles, or deep-link to the full formatter when iframe maintenance is not worth it.

  • Updated: 2026-05-03
  • JSON pasted into the embed never leaves the visitor browser on this static implementation. Your documentation page still loads third-party HTML into iframes.

Paired full tool page

This URL is the embed documentation. The same tool for everyday use (full UI, FAQ, all languages) lives on the public page below.

JSON Formatter And Validator — Open full tool page

This guide (embed docs): /developers/embed/json-formatter/ Public tool path: /developers/json-formatter/

Ways to add the JSON formatter

Offer pretty-print and minify next to API docs, CMS editors, or support portals. Large payloads benefit from a taller iframe and postMessage resizing.

General embedding guide (all tools)

Inline iframe next to editors

Keeps JSON validation local to the reader machine. Use theme presets so the widget matches your docs (light) or admin console (dark/slate).

Open full tool page

Deep link for one-off formatting

When users rarely need JSON help, a prominent button to the full page avoids maintaining iframe height logic.

Open full tool page

Live previews (themes)

The formatter uses the same textarea/output layout; only the shell colors change. Check contrast on light themes with long error messages.

On wide viewports we use two columns so each iframe stays readable. The lower pair uses a narrow ~300px column to mimic a documentation sidebar; the upper pair uses the full cell width like a content block or dashboard tile.

Default dark (matches main salamyx look) Default shell for dark portals, admin tools, and dev consoles. (default)
Light paper background, dark text Bright background for public docs, help centers, and light CMS chrome. ?theme=light
Cool slate panels Cool slate beside code samples or neutral product UI. ?theme=slate
Warm dark with amber accent Warm dark with amber accent for blogs and marketing layouts. ?theme=amber

Compact density

Compact mode hides extra vertical padding—useful when stacking the formatter under a code sample in a narrow column.

Theme query parameter

Append ?theme=light|slate|amber (or omit / use dark). Invalid values fall back to the default dark shell.

Styling on your host page

You control border-radius, shadow, and max-width on the iframe element. The embed document only adjusts its internal palette; it cannot inherit your site fonts automatically inside a cross-origin frame.

Example URLs with parameters

Base URL is the embed endpoint. Add query pairs such as ?theme=light&compact=1. Order does not matter.

https://salamyx.com/embed/developers/json-formatter/
https://salamyx.com/embed/developers/json-formatter/?theme=light
https://salamyx.com/embed/developers/json-formatter/?theme=slate&compact=1
https://salamyx.com/embed/developers/json-formatter/?theme=amber

Privacy And Limitations

JSON pasted into the embed never leaves the visitor browser on this static implementation. Your documentation page still loads third-party HTML into iframes.

  • Large JSON payloads can stress low-memory mobile browsers inside a small iframe.
  • Theme presets change colors only; they do not add schema validation beyond what the tool already provides.
  • Error messages may wrap heavily in very narrow iframes.

Related Pages

FAQ

Which theme fits API documentation?

The light theme usually matches bright doc sites; slate or dark fits developer portals with dark UI.

Can I use compact mode with long error strings?

Yes, but verify readability. Compact mode reduces padding; combine it with a taller iframe if errors are common.

Does the embed validate JSON Schema?

No. This embed is the formatter/minifier page. Use the JSON Schema validator tool for schema-specific checks.

How do I resize the iframe?

Use the shared postMessage contract documented on /developers/tool-embed/ for all salamyx embeds.

Is the embed URL stable?

Yes. It is part of the documented allowlist. Changes would be announced via the main embedding guide.