Code Formatter

Beautify JavaScript / CSS / HTML code

Code Formatter is a free online Developer tool. Beautify JavaScript / CSS / HTML code Related terms: 格式化 · format · js · css · html · beautify. Use it on this page without signing in.

ℹ️ 此工具采用正则做基础缩进美化，适用于快速整理。复杂语法（模板字符串嵌套、CSS 预处理器等）建议使用 Prettier。
Help

使用说明

  1. 在输入框粘贴 JavaScript / CSS / HTML 代码
  2. 选择语言与缩进风格
  3. 点击「格式化」自动美化缩进与换行
  4. 结果可一键复制

常见问题

  • 数据处理安全吗？ 格式化全部在浏览器本地完成，不上传代码
  • 支持哪些语言？ 常见 JS / CSS / HTML，部分支持 JSON 等
  • 格式化报错？ 请检查代码语法是否正确完整

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JSON Formatter

Format, minify, validate JSON, convert to Go struct / TS interface

JSON Field Search

Search JSON by field, value or path with highlights, supports jq expressions

Timestamp Converter

Convert between Unix timestamps and dates, seconds and milliseconds

Cron Expression

Generate and parse cron expressions, preview next run time

UUID Generator

Generate UUID v4 / v7 / ULID / NanoID

Hash Calculator

Compute MD5 / SHA1 / SHA256 / SHA512 of text or files

JWT Decoder

Decode JWT header and payload, view expiry time

URL Encoder / Decoder

Encode and decode URL / URI components

FAQ about Code Formatter

What can Code Formatter do?

Code Formatter is a Developer tool. Beautify JavaScript / CSS / HTML code You can finish the job on this page.

Who should use Code Formatter?

Anyone handling 格式化 · format · js · css · html · beautify who does not want to install desktop software can use Code Formatter in the browser.

Is Code Formatter safe? Is my data uploaded?

This tool runs in your browser. We do not collect the content you enter into Code Formatter just because you used it.

What similar tools exist?

Related tools in the same Developer group are listed at the bottom of this page.