JSON Minifier
When a JSON fixture needs to fit on one line, removing formatting by hand is error-prone. This minifier parses the document first so spaces within text values remain intact. Use the result in a compact request body, test fixture or environment configuration that expects valid JSON. Minification reduces formatting overhead; it does not change your transport settings or replace gzip and Brotli. If the source contains duplicate keys, only the last parsed value for each key survives.
Your workspace
Runs locally in your browserResult
Your input is processed locally in your browser unless explicitly stated otherwise. Inputs are not saved by this tool.
How to use this tool
Paste a JSON document and select Minify. Copy the result into your file or request body.
Example
Input
{ "status": "ok", "count": 3 }Output
{"status":"ok","count":3}What does this tool do?
Minified JSON removes indentation and line breaks outside strings. This is useful for fixtures and compact configuration, but it is not compression.
Common mistakes and limitations
Whitespace inside string values is retained. Parsing may normalize numeric notation and duplicate object keys; keep the original when byte-for-byte fidelity matters.
Frequently asked questions
Does minification encrypt my data?
No. Minified JSON remains readable data and provides no confidentiality.
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