.JSS File Extension

JSS files exist as 3 different types. Please find information about each of them below.

Type 1: JavaScript Style Sheet File

A JavaScript style sheet file offers flexibility for defining styles for web pages. JavaScript style sheets extend CSS. They allow multiple inheritance, but CSS only supports single inheritance. Befor...

General Information

Title JSS File Extension
Extension .jss
Full Form JavaScript Style Sheet File
File Type Style Sheet File
Developer Netscape Communications
MIME Type text/javascript

File Function

Primary Function Define styles
Additional Functions Scriptable styling
Features Obsolete, JavaScript-based

File Characteristics

Quality Depends on content
Supports Layers N/A
Supports Transparency N/A
Editable Yes

Use Cases

Web Design Historical
Web Development Historical
Client-side Styling Obsolete

Security and Practices

Security Risks Script execution
Best Practices Use CSS, Validate input

Historical/Version Information

Initial Release 1990s
Latest Version Outdated technology

Associated Types

Similar Extensions .css, .js

Software Compatibility

Software Usage Policy OS Compatibility
Netscape Navigator Free Historical browsers
Modern Browsers Free Not supported

Type 2: JACOsub Subtitle File

File created in JSS format, JavaScript Style Sheets extension of CSS language, supports multiple inheritance while CSS only single. More flexibility defining webpage styles. JSS files must parse, conv...

General Information

Title JSS File Extension
Extension .jss
Full Form JACOsub Subtitle File
File Type Subtitle File
Developer Unknown
MIME Type text/plain

File Function

Primary Function Store subtitles
Additional Functions Timing, Styling
Features Timecodes, Formatting

File Characteristics

Quality Text-based
Supports Layers No
Supports Transparency N/A
Editable Yes

Use Cases

Film Subtitling Yes
Video Production Yes
Accessibility Yes

Security and Practices

Security Risks Low
Best Practices Validate format, Encoding

Historical/Version Information

Initial Release Unknown
Latest Version Unknown

Associated Types

Similar Extensions .srt, .sub, .ass

Software Compatibility

Software Usage Policy OS Compatibility
JACOsub Free Various
VLC media player Free Windows, Mac, Linux
Subtitle Workshop Free Windows

Type 3: JAWS Script

General Information

Title JSS File Extension
Extension .jss
Full Form JAWS Script File
File Type Script File
Developer Freedom Scientific
MIME Type text/plain

File Function

Primary Function Accessibility scripting
Additional Functions Screen reader customization
Features Text-based, Executable

File Characteristics

Quality Depends on scripting
Supports Layers No
Supports Transparency No
Editable Yes

Use Cases

Visually Impaired Custom scripts
Accessibility Enhanced navigation
Software Customization Tailored user experience

Security and Practices

Security Risks Script vulnerabilities
Best Practices Validate, Update scripts

Historical/Version Information

Initial Release Early JAWS versions
Latest Version Depends on JAWS version

Associated Types

Similar Extensions .jsb, .jkm, .jcf, .jsi

Software Compatibility

Software Usage Policy OS Compatibility
JAWS Paid, Trial Windows