Developer lists

Browse Developer lists in text, JSON, and HTML formats for forms, data entry, prototyping, QA fixtures, and repeatable content workflows.

All Developer lists

16 lists available

Application MIME Types List | Copy-Ready Text, JSON & HTML

Copy common application/* MIME types in text, JSON, or HTML format for API content negotiation, downloads, and file validation.

39 application MIME types

Audio MIME Types List | Copy-Ready Text, JSON & HTML

Copy common audio MIME types in text, JSON, or HTML format for uploads, playback support checks, and processing pipelines.

12 audio MIME types

Common MIME Types List | Copy-Ready Text, JSON & HTML

Copy a practical common MIME types list in text, JSON, or HTML format for uploads, APIs, validation, and content handling.

22 MIME types

Compressed & Archive File Extensions List

Copy common compressed and archive file extensions in text, JSON, or HTML format. Useful for file validators, dropdowns, and developer references.

35 extensions

Document File Extensions List

Copy common document file extensions with format names in text, JSON, or HTML format. Ideal for developers, docs, and file type references.

20 extensions

Executable File Extensions List

Copy common executable and installer file extensions by platform in text, JSON, or HTML format for quick reference, docs, and developer tools.

34 extensions

HTTP 2xx Success Codes List | Copy-Ready Text, JSON & HTML

Copy all HTTP 2xx success codes in text, JSON, or HTML format for API docs, tests, and monitoring workflows, ready to paste.

10 registered status codes

HTTP 3xx Redirect Codes List | Copy-Ready Text, JSON & HTML

Copy all HTTP 3xx redirect codes in text, JSON, or HTML format for API docs, tests, and monitoring workflows, ready to paste.

9 registered status codes

HTTP 4xx Error Codes List | Copy-Ready Text, JSON & HTML

Copy all HTTP 4xx client error codes in text, JSON, or HTML format for API docs, tests, and monitoring workflows.

29 registered status codes

HTTP 5xx Error Codes List | Copy-Ready Text, JSON & HTML

Copy all HTTP 5xx server error codes in text, JSON, or HTML format for API docs, tests, and monitoring workflows.

11 registered status codes

HTTP Request Methods List | Copy-Ready Text, JSON & HTML

Copy a clean http request methods list (GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS, TRACE, CONNECT) in text, JSON, or HTML for API docs and tooling.

9 standard methods

HTTP Status Codes List | Copy-Ready Text, JSON & HTML

Copy the complete IANA-registered HTTP status codes list in text, JSON, or HTML format for APIs, docs, testing, and observability workflows.

64 registered status codes

Image MIME Types List | Copy-Ready Text, JSON & HTML

Copy common image MIME types in text, JSON, or HTML format for upload validation, image processing, and media tooling.

12 image MIME types

JSON Data Types List

Copy all 6 native JSON data types from RFC 8259 in text, JSON, or HTML format for quick reference, docs, and dropdown menus.

6 data types

Regex & String Escape Characters List

Copy common regex and string escape sequences in text, JSON, or HTML format. Includes \n, \t, \r, \\, \0, \uXXXX, and more.

39 escape sequences

Video MIME Types List | Copy-Ready Text, JSON & HTML

Copy common video MIME types in text, JSON, or HTML format for upload policies, streaming workflows, and player support checks.

10 video MIME types

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Astrology

1 lists

Browse Astrology lists in text, JSON, and HTML formats for forms, data entry, prototyping, QA fixtures, and repeatable content workflows.

Calendar

7 lists

Browse Calendar lists in text, JSON, and HTML formats for forms, data entry, prototyping, QA fixtures, and repeatable content workflows.

Color

5 lists

Browse Color lists in text, JSON, and HTML formats for forms, data entry, prototyping, QA fixtures, and repeatable content workflows.

Communication

2 lists

Browse Communication lists in text, JSON, and HTML formats for forms, data entry, prototyping, QA fixtures, and repeatable content workflows.

Education

1 lists

Browse Education lists in text, JSON, and HTML formats for forms, data entry, prototyping, QA fixtures, and repeatable content workflows.

Geography

14 lists

Browse Geography lists in text, JSON, and HTML formats for forms, data entry, prototyping, QA fixtures, and repeatable content workflows.