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ASCII 代码表・字符编码反查工具

按十进制、十六进制、八进制、二进制、Unicode 和控制字符名称搜索、反查并复制 ASCII 0~127 的免费代码表。

Additional information for this feature.

A650x410o1010b01000001U+0041can be confirmed as the same character.

ASCII 65 details

Latin Capital Letter A

A

Program/HTML notation

ASCII code list (0-127)

Select a row to display details. Each code value can be copied from the button in the table.

Move quickly:

Showing 128 results

人物 decimal hexadecimal octal binary Unicode Additional information for this feature. English name Description Additional information for this feature.

关于此工具

You can search and reverse lookup of ASCII codes, control characters, and character code values without the need for installation.

支持的功能

  • Additional information: ASCII 0~127 7bit
  • Decimal, hexadecimal, octal, binary, Unicode notation
  • Control character names, classification, and escape notation in major languages

使用方法

  1. Input
  2. Narrow down the list by searching and categorizing.
  3. Review the row details and copy the required values.

限制事项

关于此工具

You can check the ASCII characters and control codes used in programs, communication data, and escape sequences from a list or from input values.

支持的功能

  • Search
  • Additional information: 10 16 8 2 Unicode
  • Notation and copy for C, Java, JavaScript, Python, and HTML

使用方法

  1. Input
  2. Refine the 128 tables by search term and classification.
  3. Select the row and copy each base number or escape notation.

限制事项

  • Additional information: ASCII 128~255
  • Numbers without a prefix are automatically determined and treated as decimal numbers.

隐私: Search, reverse lookup, and copying are performed within the browser, and input contents are not sent or saved to the Develop Tools server.