.J File Overview

File Extension: J
File Type Description: Java Source File
File Type Developer: Oracle Corporation
Primary Associated Software: Vim
Primary Software Developer: Bram Moolenaar

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What is File Extension J?

Java Source File files are the most popular type of files to carry the J file extension, originally developed by Opera Software for Opera. Website visitor analysis indicates that J files are commonly found on Windows 10 user machines, and are most popular in China. Google Chrome is their primary internet browser for the bulk of these users.

Top J User Languages

Top J File User Browsers

Desktop Friendly?


Mobile Friendly?


Most Popular J File Countries

Top User Operating Systems

Windows 7 Windows 10 Windows 8.1 Windows XP

Associated Operating Systems

OS X El Capitan

Other File Types Related to J Files

Extension File Type Developer File Category File Type Description
.ODF Oracle Corporation Uncommon Files OpenDocument Formula
.ASCII Sublime HQ Pty Ltd Text Files ASCII Text
.SKI Motorola Settings Files Motorola Phone Skin File
.TLD The Eclipse Foundation Developer Files Tag Library Descriptor File
.ML Robin Milner Developer Files ML Source Code File
.VIM Bram Moolenaar Settings Files Vim Settings File
.HPF IBM Developer Files High Performance Fortran File
.YAML Unknown Developer Developer Files YAML Document
.DTD Syncro Soft Developer Files Document Type Definition File
.B Rockstar Games Game Files Grand Theft Auto 3 Saved Game File

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