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September 19, 2026
.SWF
Small Web Format (Shockwave Flash)
Video Files
updated Jun 20, 2026

Files with the .swf extension contain animations - which can be interactive - stored in a binary multimedia format originally created by FutureWave Software in 1996. The name stands for Small Web Format, reflecting its original goal of delivering compact,…

SIGNATURE465753"FWS" = uncompressed; "CWS" (43 57 53) = zlib-compressed; "ZWS" (5A 57 53) = LZMA-compressed
OPENS ONLinuxMac OSmacOSWebWindows
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