IrfanView - very popular image viewer
Irfanview is a very fast, compact and innovative freeware image viewer/converter for winxp/2003/vista/win7/win8/win10. Irfanview is fast and small, with extremely low system resources requirements. It is trying to be simple for beginners and powerful for professionals.
Supported file formats: aif, ani/cur, asf, au/snd, avi, awd, b3d, bmp/dib, cad formats, clp, dds, dicom/acr, djvu, dxf, ecw, emf/wmf, eps/ps/pdf/ai, exr, fits, fpx (flashpix), g3, gif, hdr, hdp/wdp, ico/icl/exe/dll, iff/lbm, img (gem), jpeg-xr, jls, jpg2000, jpg, jpm, kdc, med, mid/rmi, mng/jng,ov, mp3, mpg, mrsid, ogg, pbm/pgm/ppm, pcx/dcx, pdn, photocd, png, psd, psp, pvr, ras/sun, raw, real audio (ra), rle, sff, sfw, sgi/rgb, swf/flv, tga, tif, ttf, txt, wad, wav, wbmp, webp, wsq, xbm, xpm, xcf, crw/cr2, vtf, dng, nef, orf, raf, mrw, dcr, x3f, pef, srf, eff, dxf, dwg, hpgl, cgm, svg, wbc/wbz, etc.
Some features of irfanview: multi language support, unicode support, thumbnail option, slideshow, fast directory browsing, batch conversion/editing, multipage editing, file search, email, print, paint plugin
To paint lines, circles, arrows, straighten image etc
, support for color profiles, change color depth, scanning, ocr, cut/crop, iptc edit, capturing, lossless jpg operations, effects (sharpen, blur, adobe photoshop filters), exe/scr creating, unicode support, many hotkeys, many command line options, 60+ plugins and more microsoft media player plugin: allows irfanview to read following formats: asf, au/snd/aif, avi, mid/rmi, mov, mp3, mpg/mpeg, wav, wma, wmv
Support for apple quicktime (plugin): allows irfanview to read following formats: mov, qtif, mac pict, fli/flc
Irfanview was the first windows graphic viewer (worldwide) with animated gif support
Freeware for non commercial use