跳转到主要内容
Develop Tools

MIME 类型列表・扩展名搜索工具

按扩展名和用途搜索 MIME 类型，生成 Content-Type 标头并判断本地文件类型的免费 MIME 类型列表。

Search MIME type/extension

/You can also move to the search field using the key. Example:json、.webp、audio、+xml

MIME type list

Select a row to see its usage, example HTTP headers, aliases, and security notes.

Showing 0 items

Additional information for this feature.

application/json

Associated MIME types

Estimate local file MIME type

File contents are not loaded, the extension and browser provideFile.typeagainst the built-in dictionary.

Content-Type/Content-Disposition generation

Create an example HTTP response header from the MIME type, character code, and save file name.

关于此工具

You can check MIME types, set Content-Type for web servers and APIs, and reverse lookup from extensions on one page.

支持的功能

  • MIME types and common extensions
  • Additional information for this feature.
  • Save
  • Content-Type, Content-Disposition, nosniff header generation

Additional information for this feature.

  • The file contents cannot be guaranteed just by the extension. Also perform content inspection on untrusted files.
  • browserFile.typedepends on the OS, browser, and extension, and may be empty.
  • Save

Data confirmation date: / Reference: IANA Media Types Registry、 RFC 6838、 WHATWG MIME Sniffing

关于此工具

You can reversely look up the MIME type used by web servers, APIs, email, and file delivery from the extension and check the appropriate HTTP header.

支持的功能

  • Search for major MIME types, extensions, IANA registration status, data formats, and compression characteristics
  • Content-Type/Content-Disposition generation, local file extension and File.type matching
  • 6 Sort items, copy details/extension/header

使用方法

  1. Enter the MIME type, extension, and usage, and narrow down by classification and registration status.
  2. Select a target from the list and check the character code, aliases, security precautions, and usage examples.
  3. Copy

限制事项

  • The file extension and browser's File.type alone cannot guarantee the safety of the file contents.
  • Compatibility/non-standard notation and extension support may vary depending on the OS, browser, and server product.

相关工具

使用指南与故障排除

隐私: Search, file identification, header generation, and copying are performed within the browser, and files and input contents are not sent or saved to the Develop Tools server.