JSON Merge

Use the fields above to transform, validate, or format input. Errors appear in the on-page alert when parsing fails.

JSON Merge

How it works

Parsing and encoding run entirely in JavaScript here—no server sees your pasted content unless a tool explicitly says it fetches remote data.

Common mistakes

  • Mixing tabs and spaces can change output alignment unexpectedly.
  • Escaped characters may appear double-escaped after repeated transforms.
  • Always verify output encoding before saving to production files.

Use this tool for

  • Formatting or minifying snippets before pasting into a repo or ticket.
  • Checking encodings (Base64, hex, URL) without third-party paste services.
  • One-off developer checks during debugging.

Common questions

What should I double-check before trusting JSON Merge?

Verify units, bases, and pasted text (hidden spaces or wrong line endings); then spot-check one example by hand if the answer must be exact.

Why does my answer differ slightly from another site?

Static assets load from the host once; your entries stay in the browser and are not sent to NexUtility for processing.