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Visionneuse de diff JSON

Visionneuse de diff JSON gives developers a fast browser preview loop for AI-generated snippets, UI fragments, configuration examples, and documentation assets.

Exemples
JSON diffPrêt
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Continuer avec un outil lié

Envoyez cette prévisualisation vers un workflow proche pour convertir, déboguer ou exporter.

Comment utiliser

  1. 1Paste a small focused snippet first, then replace it with your full source once the preview shape is clear.
  2. 2Use the samples to learn the expected separator or source format.
  3. 3Check warnings, visual output, and extracted structure before putting the snippet into a README, issue, or production docs.
  4. 4Keep the source together with screenshots so teammates can reproduce the result.

Cas d’usage

Review AI-generated HTML, CSS, JSON, and Base64 assets before publishing.Create lightweight screenshots for technical docs, release notes, and support answers.Debug visual snippets without switching between several unrelated tools.

FAQ

Does this send my source to a backend or AI service?

No. These P1 preview tools run locally in the browser for the supported parser path.

Is the preview a full production runtime?

No. It is a focused preview and debugging surface for common cases. Keep your browser, runtime, or production parser as the final authority.

Visionneuse de diff JSON is part of the DiagramPreview script and visual source preview toolbox.

It helps you close the gap between text generated by AI or copied from a project and the visual output that teammates actually review.

Use it as a quick validation step before turning snippets into docs, tickets, blog posts, or production examples.

Demo: compare API response changes

JSON diffs help teams review what changed between two payloads, config files, or generated outputs without reading every line.

  • Compare normalized JSON when key order is noisy.
  • Focus on changed paths before formatting differences.
  • Use diffs in PRs for API contract and config changes.
before: {"status":"draft","total":10}
after:  {"status":"paid","total":10,"paidAt":"2026-06-18"}

Review checklist: not every JSON diff has equal risk

A changed optional UI field is different from a changed auth claim or billing amount. Use the diff to prioritize semantic risk, not only count changed lines.

  • Flag removed fields consumed by clients.
  • Review type changes such as string to number.
  • Check nested arrays for reordered objects.
removed: user.email
changed type: order.total string -> number
added: metadata.traceId

Checklist de revue pour Visionneuse de diff JSON

Utilisez Visionneuse de diff JSON pour inspecter visuellement une source avant documentation, note de PR, post-mortem ou transfert. Compare two JSON payloads and inspect added, removed, and changed paths.

Avant export, vérifiez la lisibilité, les relations, les données sensibles et la cohérence après modification.

Limites et dépannage

Si l'aperçu échoue, réduisez l'entrée au plus petit exemple complet, validez la syntaxe puis réajoutez les sections.

Considérez l'aperçu comme une surface de revue, pas comme une source de vérité. Les résultats critiques doivent être validés.

Exemples à tester

  • API response: { "id": 42, "status": "draft", "items": [{"sku":"A1","qty":1}], "total": 19.9 } --- { "id": 42, "status": "paid", "items": [{"sku":"A1","qty":2}], "total": 39.8, "paidAt": "2026-06...
  • Config change: { "featureFlags": {"ai": false, "export": true}, "timeout": 3000 } --- { "featureFlags": {"ai": true, "export": true, "beta": true}, "timeout": 5000 }
  • Package deps: { "dependencies": {"next":"15.5.19", "react":"19.1.0"} } --- { "dependencies": {"next":"15.5.19", "react":"19.1.0", "zod":"latest"}, "devDependencies": {"vitest":"latest"} }

Maturité de l'outil

Rendu stable

Outil stable

Cet outil dispose d'une prévisualisation dédiée, d'exports utiles et d'un flux répétable dans le navigateur.

Le libellé indique si l'outil convient surtout à l'export stable, au débogage, à l'analyse rapide ou à la génération AI.