JSON Tools for AI Developers · Runs locally

For AI developers JSON Workbench

Q: Can it strip comments?

不以删注释为承诺。有 // 或 /* */ 时请先手删，或试修复页。

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JSON Clean

Text copied from Excel, Windows Notepad, or a legacy API often carries a BOM or an extra comma at the end of an object.

Click Clean JSON to strip that noise so Format and Validate fail one less time.

Clean is conservative: it does not guess business fields or rewrite nesting. Thoroughly broken text belongs on Repair.

Data stays in the browser. Good for export files that contain internal fields.

What Clean does and does not do

BOM, zero-width characters, trailing commas, and extra whitespace are in scope. Missing quotes, truncated model output, or JS treated as JSON belong on Repair.

Order relative to Format

Clean first, then Format. Formatting dirty text often fails on line 1 and looks like "the tool is broken."

How to use it

Paste JSON that has a BOM, trailing commas, or extra whitespace.
Click Clean JSON and check that the status becomes parseable.
Format immediately and confirm the structure is complete.
If it still fails, send the text to Repair. Don't keep cleaning.
Copy the clean result, then run Schema or Diff.

When to use it

A UTF-8 file saved from Windows Notepad picked up a BOM.
A leftover trailing comma from a JS object literal.
An Excel export that includes invisible characters.
Prepare clean input for a validator or Mock.

Keep in mind

It does not force a single line. Minify on the Format page if you need that.
Comments are not standard JSON. Clean may not delete them for you.
Everything stays local. You don't upload the file first.

FAQ

Can it always remove trailing commas?

Common trailing commas at the end of objects and arrays, yes. Comments or odd concatenation need a human look.

When should I use AI Repair instead?

Use Clean for junk characters, BOM, and trailing commas. Use Repair for missing brackets or quotes.

Does it minify the content?

The goal is parseable text, not a single line. Minify on the Format page if you need that.

Is the file uploaded?

No.

What is a BOM?

An invisible mark at the start of a file, common when Notepad saves UTF-8. JSON.parse sometimes fails because of it.

Can it strip comments?

We don't promise to strip comments. If you have // or /* */, delete them by hand or try Repair.

Does it change numeric precision?

It does not rewrite values on purpose. Clean targets noise, not a business-data reserialize.

What if Clean fails?

The input may not be JSON at all. Check whether it is XML, YAML, or a log fragment.