Every file it opens.
75 kinds of photo, 37 of them camera RAW, and 28 kinds of video. Type yours to check.
| Extension | What it is | Comes from | Type |
|---|---|---|---|
| .jpg | JPEG | every camera and phone | Photo |
| .jpeg | JPEG | every camera and phone | Photo |
| .jpe | JPEG, older spelling | exports from older software | Photo |
| .jif | JPEG, older spelling | exports from older software | Photo |
| .jfif | JPEG, older spelling | Windows downloads, web saves | Photo |
| .insp | 360° photo | Insta360 | Photo |
| .png | PNG | screenshots, edits | Photo |
| .apng | animated PNG | the web | Photo |
| .gif | GIF | the web, messaging apps | Photo |
| .webp | WebP | the web, WhatsApp, Android | Photo |
| .bmp | bitmap | Windows, old scanners | Photo |
| .ico | icon | Windows | Photo |
| .avif | AVIF | newer phones, the web | Photo |
| .heic | HEIC | iPhone, iPad, Samsung | Photo |
| .heif | HEIF | iPhone, Android, Canon, Sony | Photo |
| .hif | HEIF, Fujifilm's name for it | Fujifilm, Canon | Photo |
| .tif | TIFF | scanners, Photoshop, Lightroom | Photo |
| .tiff | TIFF | scanners, Photoshop, Lightroom | Photo |
| .psd | Photoshop document | Adobe Photoshop | Photo |
| .dds | DirectDraw Surface | game textures, mods | Photo |
| .jxl | JPEG XL | newer cameras and apps | Photo |
| .jp2 | JPEG 2000 | archives, scans, medical imaging | Photo |
| .j2k | JPEG 2000 | archives, scans | Photo |
| .jpf | JPEG 2000 | archives, scans | Photo |
| .jpx | JPEG 2000 | archives, scans | Photo |
| .tga | Targa | games, 3D renders | Photo |
| .sgi | Silicon Graphics image | 3D and film tools | Photo |
| .exr | OpenEXR, high dynamic range | 3D renders, VFX | Photo |
| .hdr | Radiance HDR | HDR merges, 3D lighting | Photo |
| .pict | PICT | classic Mac OS | Photo |
| .pct | PICT | classic Mac OS | Photo |
| .cur | cursor | Windows | Photo |
| .fts | FITS | astrophotography, telescopes | Photo |
| .fit | FITS | astrophotography, telescopes | Photo |
| .fits | FITS | astrophotography, telescopes | Photo |
| .pcd | Kodak Photo CD | Kodak Photo CD discs | Photo |
| .wbmp | wireless bitmap | old mobile phones | Photo |
| .xpm | X pixmap | Linux and Unix | Photo |
| .cr2 | RAW | Canon DSLRs | Camera RAW |
| .cr3 | RAW | Canon mirrorless, newer DSLRs | Camera RAW |
| .crw | RAW | early Canon | Camera RAW |
| .nef | RAW | Nikon | Camera RAW |
| .nrw | RAW | Nikon Coolpix | Camera RAW |
| .arw | RAW | Sony Alpha, Cyber-shot | Camera RAW |
| .arq | pixel shift RAW | Sony Alpha | Camera RAW |
| .srf | RAW | early Sony | Camera RAW |
| .sr2 | RAW | early Sony | Camera RAW |
| .orf | RAW | Olympus, OM System | Camera RAW |
| .ori | RAW | Olympus, OM System | Camera RAW |
| .raf | RAW | Fujifilm | Camera RAW |
| .rw2 | RAW | Panasonic Lumix | Camera RAW |
| .raw | RAW | Panasonic, Leica | Camera RAW |
| .dng | digital negative | Leica, Pentax, Ricoh, DJI, iPhone ProRAW, Pixel, Adobe | Camera RAW |
| .gpr | RAW | GoPro | Camera RAW |
| .pef | RAW | Pentax | Camera RAW |
| .ptx | RAW | Pentax | Camera RAW |
| .srw | RAW | Samsung NX | Camera RAW |
| .x3f | RAW | Sigma | Camera RAW |
| .3fr | RAW | Hasselblad | Camera RAW |
| .fff | RAW | Hasselblad, Imacon scanners | Camera RAW |
| .iiq | RAW | Phase One | Camera RAW |
| .cap | RAW | Phase One | Camera RAW |
| .eip | RAW with its edits | Phase One Capture One | Camera RAW |
| .mos | RAW | Leaf | Camera RAW |
| .mrw | RAW | Konica Minolta | Camera RAW |
| .mdc | RAW | Minolta | Camera RAW |
| .erf | RAW | Epson | Camera RAW |
| .mef | RAW | Mamiya | Camera RAW |
| .rwl | RAW | Leica | Camera RAW |
| .bay | RAW | Casio | Camera RAW |
| .dcr | RAW | Kodak | Camera RAW |
| .dcs | RAW | Kodak | Camera RAW |
| .drf | RAW | Kodak | Camera RAW |
| .kdc | RAW | Kodak | Camera RAW |
| .k25 | RAW | Kodak | Camera RAW |
| .mp4 | MPEG-4 | phones, cameras, drones, GoPro | Video |
| .m4v | MPEG-4 | Apple, iTunes | Video |
| .mov | QuickTime | iPhone, cameras | Video |
| .webm | WebM | the web, screen recorders | Video |
| .avi | AVI | old cameras, Windows | Video |
| .mts | AVCHD | Sony, Panasonic, Canon camcorders | Video |
| .m2ts | AVCHD | camcorders, Blu-ray | Video |
| .m2t | HDV | HDV camcorders | Video |
| .mpg | MPEG | old cameras, DVD rips | Video |
| .mpeg | MPEG | old cameras, DVD rips | Video |
| .mpe | MPEG | old cameras | Video |
| .m2v | MPEG-2 video | DVD authoring | Video |
| .wmv | Windows Media | Windows, old phones | Video |
| .asf | Windows Media | Windows, old cameras | Video |
| .3gp | 3GPP | old mobile phones | Video |
| .3g2 | 3GPP2 | old mobile phones | Video |
| .mkv | Matroska | downloads, screen recorders | Video |
| .flv | Flash video | the old web | Video |
| .f4v | Flash video | the old web | Video |
| .vob | DVD video | DVDs, DVD camcorders | Video |
| .mod | SD video | JVC, Panasonic, Canon camcorders | Video |
| .tod | HD video | JVC Everio camcorders | Video |
| .ogv | Ogg Theora | the web, Linux | Video |
| .mxf | MXF | professional and broadcast cameras | Video |
| .dv | DV | MiniDV tape camcorders | Video |
| .rm | RealMedia | the old web | Video |
| .rmvb | RealMedia | the old web | Video |
| .divx | DivX | old cameras, downloads | Video |
| .aae | photo edits | iPhone | Kept with its photo |
| .xmp | edits and ratings | Lightroom, darktable, most RAW editors | Kept with its photo |
| .dop | edits | DxO PhotoLab | Kept with its photo |
| .pp3 | edits | RawTherapee | Kept with its photo |
| .thm | thumbnail | Canon and other cameras | Kept with its photo |
| .lrv | low-resolution copy | GoPro | Kept with its photo |
| .lrf | low-resolution copy | DJI | Kept with its photo |
| .mpo | multi-picture JPEG | 3D cameras, Nintendo 3DS | Doesn't open yet |
| .jxr | JPEG XR | Windows, Xbox captures | Doesn't open yet |
| .wdp | HD Photo | Windows | Doesn't open yet |
| .hdp | HD Photo | Windows | Doesn't open yet |
| .pcx | PC Paintbrush | DOS-era software | Doesn't open yet |
| .xcf | GIMP document | GIMP | Doesn't open yet |
A format gets added once a real file from that camera or app opens correctly in testing, so a sample file helps more than its name. Missing one? Ask for it.