Bob's Multi Tool

JavaScript Formatter

javascript formatterjs formatterformat javascriptjavascript beautifierPrivacy: Browser local

JavaScript Formatter

Format JavaScript snippets and inspect functions, imports, exports, async usage, browser APIs, and copy risks.

Input / Output

Start with the tool

Input, output, and copy actions stay in this main surface. Examples and reference checks are separated below.

Copy-ready output

Local session

Input state is saved only in this browser so you can restore the last workspace without an account.

Review after the result

Open examples, checks, and related tools only after the primary input/output flow is done.

Web operations workbench

Review a JavaScript snippet

Format a snippet, copy the JavaScript review report, then minify or inspect API payloads before handoff.

3 Tools
  1. 1. JS

    Format the snippet and copy the review report with module, runtime, fetch, eval, and checklist signals.

  2. 2. JS Min

    Check compression, comment removal, and the minified review report if the compact version will be shared.

  3. 3. JSON

    Inspect JSON or API payload examples referenced by fetch handlers before copying the snippet.

Before copying

  • Do not run untrusted JavaScript just because it became readable.
  • Compare behavior before and after formatting in the real runtime.
  • Use Regex Tester or JSON Formatter next when the snippet contains patterns or payloads.

Common failure cases

  • Formatting is not linting, compiling, type checking, or security review.
  • Minified snippets can hide side effects, unsafe eval usage, or environment-specific globals.

Related tools

  • Do not run untrusted JavaScript just because it became readable.
  • Compare behavior before and after formatting in the real runtime.
  • Use Regex Tester or JSON Formatter next when the snippet contains patterns or payloads.
JavaScript Formatter - Free Online Code Tool | bobob.app