J File Extensions

File Extension File Type Popularity
.J Java Source File 4.2
.J JAR Archive 3.8
.J JPEG Image 3.2
.J01 Akeeba Multi-part Backup Archive 3.2
.J2C JPEG 2000 Code Stream 4
.J2I Jazz 2 Internet Link File 4
.J2K JPEG 2000 Image 4
.J2L Jazz Jackrabbit 2 Level File 4.5
.J3O jMonkeyEngine 3D Scene 4.5
.J6I Ricoh Camera Image File 3.9
.JA Jet Archive 3.8
.JAC JaStaCry Encrypted File 3
.JAD Java Application Descriptor File 4.5
.JAG Jagex Data File 4.2
.JAM Line 6 Device Recording 4.3
.JAM Jam STAPL File 4.2
.JAM JAM Musical Score 3.5
.JAM PS3 Unreal Tournament 3 Mod File 3.5
.JAP Nonogram Puzzle File 4.2
.JAP Japanese Nintendo 64 Game ROM 4
.JAR Java Archive File 4.6
.JAR.PACK Pack200 Packed Jar File 3.8
.JARVIS Jarvis Subscriber File 4.3
.JAS Cheetah3D Model File 4.1
.JAS Paint Shop Pro Compressed Graphic 3.5
.JASPER JasperReports Data File 4.7
.JAV Java Source File 4.7
.JAVA Java Source Code File 4.6
.JB2 JBIG2 Image 4
.JBC Jam STAPL Byte-Code File 4.3
.JBEAM BeamNG Vehicle Definition Format 4.2
.JBF Paint Shop Pro Browser Cache File 4
.JBG Joint Bi-level Image Group File 3
.JBI Motoman Robot Job File 4
.JBIG Joint Bi-level Image Group File 3.5
.JBIG2 JBIG2 4
.JBK Juno Backup File 4.4
.JBMP JAmes OS Bitmap Image 3
.JBR Paint Shop Pro Brushes File 4
.JC FlashGet Partial Download 4.3
.JC! FlashGet Incomplete Download 4
.JCEKS JCEKS Keystore File 3.5
.JCL JCloze File 4
.JCLIC JClic Project File 3.5
.JCP JCreator Project File 4
.JCR Nonogram Puzzle File 3.5
.JCRYPT JCRYPT File 4
.JCW JCross File 4
.JCZ Liquid Motion Animation 3.2
.JDAT J&ASoft Data File 4.5
.JDB Symantec Endpoint Protection Update File 4.5
.JDC JDownloader Links File 3.5
.JDF Adobe Acrobat Job Definition File 4
.JED Xilinx JEDEC Programming File 4.3
.JEF Janome Embroidery Format 4.5
.JET JET Database File 4.2
.JFI JPEG File Interchange Image 4.2
.JFIF JPEG File Interchange Format 3.8
.JG4 BigJig Jigsaw Puzzle 4
.JGCSCS EditPad Custom Syntax Coloring Scheme File 3.5
.JGW JPEG World File 3.6
.JGZ Gzipped Javascript File 3.8
.JHTML Java HTML Web Page 4.1
.JIA Digital Photo Navigator Album 4
.JIC JTAG Indirect Configuration File 4
.JIC Java Icon File 4
.JIF JPEG Image File 3.4
.JIFF JPEG Image File Format 3.5
.JIGSAW Jigsaw Explorer Save File 4
.JIS Japanese Industry Standard Text 3.5
.JKB Jedi Knight Bot File 4.2
.JKM JAWS Key Map File 4.2
.JKS Java Keystore File 3.6
.JL Julia Source Code File 3.5
.JMC JM-Crypt Encrypted File 4
.JMCE JM-Crypt Encrypted File 3.5
.JMCK JM-Crypt Key File 3.8
.JMCP JM-Crypt Encrypted File 3.5
.JMCR JM-Crypt Encrypted File 3.5
.JMCX JM-Crypt Encrypted File 4
.JMF Jackhammer Project 4.5
.JMP JMP Data File 4.5
.JMS Masher Project 4.7
.JMT JMatch File 4
.JMV Jnes Movie File 4.2
.JMX JMix File 4.3
.JNG JPEG Network Graphic 4.4
.JNILIB JNI Library 4.2
.JNLP Java Web Start File 4.2
.JNP Java Web Start File 3.8
.JNT Windows Journal File 4.5
.JNX BirdsEye JNX Raster Map 4
.JO jo Audio File 3
.JO-7Z jo Audio File 3
.JOB MetaCAM Nest Job File 4.5
.JOB Windows Task Scheduler Job File 4.4
.JOBOPTIONS Adobe Joboptions File 4
.JOE JOE Document 3.6
.JOINED HJ-Split Data File 4
.JOY CryENGINE Facial Editor Joystick File 3.8
.JP1 Japanese (Romaji) Text File 4
.JP2 JPEG 2000 Core Image File 3.9
.JPA Akeeba Backup Archive 4
.JPC JPEG 2000 Code Stream File 4.2
.JPD Joint PhotoDefiner Image 3.5
.JPD Java Process Definition 3.5
.JPE JPEG Image 4.3
.JPEG JPEG Image 4.7
.JPF JPEG 2000 Image 4.2
.JPG JPEG Image 4.6
.JPG2 JPEG 2000 Image 4
.JPGW JPEG World File 4.5
.JPH JProbe Memory Snapshot 4.5
.JPN Windows Japanese Noise-Word List File 3.2
.JPR JBuilder Project 3.8
.JPR Fugawi Projection File 3.2
.JPS Akeeba Backup Archive 4.5
.JPS Stereo JPEG Image 4.5
.JPW World File for JPEG 4
.JPX JPEG 2000 Image File 4.1
.JPX JBuilder Project 3.3
.JQZ JQuiz File 4
.JRC PCjr Cartridge ROM File 3
.JRPRINT JasperReports Print File 4
.JRS Exchange Reserve Transaction Log File 3.8
.JRTF JAmes OS Rich Text File 3
.JRXML JasperReports Layout File 4
.JRZ PSP Game Data File 4
.JS JavaScript File 4.3
.JS JScript Executable Script 4.3
.JSD Jazer Data File 3.2
.JSDA Jazer Data File 3
.JSE JScript Encoded File 3.8
.JSF Java Script Command File 4.2
.JSF Project64 Joystick File 3.3
.JSFL Flash JavaScript File 4.5
.JSH JAWS Script Header File 3.5
.JSH Jsh Script 3
.JSON JavaScript Object Notation File 4.5
.JSONLZ4 Compressed Firefox Bookmarks Backup File 4.5
.JSP Java Server Page 4.2
.JSPA Java Servlet Alias 3.5
.JSPF Java Server Page Fragment 4.8
.JSPF JSON Playlist File 4
.JSPX XML Java Server Page 4.2
.JSS JACOsub Subtitle File 3.8
.JSS JavaScript Style Sheet File 3.5
.JSS JAWS Script 3.5
.JST Jnes Save State 4
.JST JavaServer Page Document 3.5
.JSX ExtendScript Script File 4.6
.JSXBIN Binary ExtendScript Script File 4.4
.JSXINC ExtendScript Included Script File 3.8
.JT JT Open CAD File 4.2
.JTBACKUP Just Type Backup File 3.5
.JTF JPEG Tagged Interchange Format 3.8
.JTP Windows Journal Template 4.5
.JTS Cyberlink AVCHD Video File 4
.JTV JRiver TV File 4
.JTX ESE Transaction Log 3.5
.JTX Jrju Text File 3
.JTX XPS Document 3
.JUDE JUDE Project File 3.6
.JVS JavaScript Proxy Autoconfig File 3
.JVSG Video Surveillance Project 4.7
.JWL Roxio Jewel Case File 3.5
.JWS Java Web Services File 4
.JWS Java Workspace Settings File 3.9
.JXR JPEG XR Image 4.2