JSON Minifier

Shrink JSON to a single compact line.

  • Free, no sign-up
  • Runs in your browser

Drop your file here, or

TXT, CSV, JSON, Markdown, HTML, XML, DOCX, PDF, RTF and more

Type, paste with Ctrl V, or drop a file

Options

or press Ctrl EnterRuns in your browser

Result

Your result will appear here.

Add your text, then press Minify JSON.

How to use JSON Minifier

  1. Paste your text into the input box, or drop a file onto it.
  2. Choose your options.
  3. Press Minify JSON.
  4. Copy the result or download it in the format you need.

Example

Before
{
  "a": 1,
  "b": [true, false]
}
After
{"a":1,"b":[true,false]}

Whitespace removed, data unchanged.

Good for

  • Reducing payload size
  • Embedding JSON in a single line of config
  • Preparing JSON for URLs or environment variables

What happens to your text

Your text is processed in your browser and kept only in this tab’s memory. It is not uploaded, saved or used for analytics.

  • JSON Formatter

    Format and validate JSON with clean indentation — numbers and text are kept exactly as written.

  • JSON to CSV

    Convert a JSON array of objects into a CSV table you can open in a spreadsheet.

  • Base64 Encode / Decode

    Encode text to Base64 or decode Base64 back to readable text (UTF-8).

  • URL Encode / Decode

    Percent-encode text for use in URLs, or decode %20-style text back.

  • CSV to JSON

    Convert CSV rows into a JSON array, using the first row as field names.

  • HTML Entities Encode / Decode

    Escape < > & and quotes as HTML entities, or turn entities back into characters.

  • CSV Formatter

    Clean up CSV: change the separator, trim cells, fix quoting and even out rows.

  • XML Formatter

    Indent XML so its structure is easy to read, and catch unclosed or mismatched tags.

Questions about JSON Minifier

More answers in the TextVix FAQ.

Is whitespace inside strings removed?

No. Only whitespace between values is removed; text inside strings is untouched.

Is my text uploaded anywhere?

No. This tool runs entirely in your browser. Your text and files are never sent to a server or stored.