JSON Minifier

Stripped down.

Minimum bytes.

Input
Output
No upload
Works offline
No idea what's in your data

Need to minify thousands of JSON files? The offline bundle handles batches with no size limit. $99 once.

Get Bundle →
// How it works

Three steps. Zero uploads.

01
Paste
Paste your formatted JSON. It stays on your device.
02
Minify
fwip removes all whitespace, line breaks, and indentation.
03
Copy
Copy the compact JSON. Nothing was ever sent anywhere.
// Why this is different

Your data never leaves your machine.

Most online JSON minifiers send your data to a server for processing. Your JSON passes through systems you don't control.

fwip works differently. The minifier runs entirely in your browser. Your data is read from your device, processed on your CPU, and the result is saved back to your device. No server is involved. We literally cannot see your file.

No server processing

Everything runs on your device using WebAssembly. Your file never touches a network.

No account required

Drop a file. Get a result. No sign-up, no email, no password.

No subscription

Free in the browser. $99 once for the offline bundle. That's it. Forever.

Works offline

The desktop version works with no internet connection at all.

// Questions

Frequently asked.

How do I minify JSON?▾
Paste your formatted JSON into fwip. It removes all whitespace, line breaks, and indentation to produce the smallest possible output.
How much smaller is minified JSON?▾
Typically 20-40% smaller than pretty-printed JSON. The reduction depends on how much whitespace and indentation the original had.
Does minifying break the JSON?▾
No. Minifying only removes whitespace. The data structure and values are identical.
// Related tools

You might also need.

DATA
JSON Formatter
Format, validate, and pretty-print JSON.
 DATA
JSON Validator
Validate JSON and find syntax errors.
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JSON Beautifier
Pretty-print JSON with indentation.
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Diff Checker
Compare two texts. Line-by-line diffs.
 DATA
Base64
Encode and decode Base64 — text and files.
 DATA
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512.

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$15
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  • JSON Minifier · offline
  • Batch processing
  • No file size limit
  • 3 devices · one payment
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One-time payment · 3 devices · Updates included · Mac + Windows + Linux