Adobe Flash 10

Partly documented

other

The Adobe Flash format, SWF, previously known as Shockwave Flash or Macromedia Shockwave Flash, and alternatively known as the Small Web Format, is a file format primarily designed for creating interactive multimedia applications. The format iterates rapidly, often in line with new releases of Adobe Flash or Adobe Air. Prior to version 6 all SWF files were uncompressed, however version 6 introduced the option of using zlib compression. Version 13 introduced the option of using LZMA compression.

Identify it

Extensions	`.swf`
MIME types	`application/x-shockwave-flash`
Signatures	`4657530a` at byte 0 (SWF 10) `4357530a` at byte 0 (SWF 10 - zlib compressed)
PRONOM	`fmt/507`
Wikidata	`Q29011365`

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Open it

No software is recorded for this format — see its family, SWF.

Convert it

No conversion recorded. One of the tools above may export it; search for a chain.

Documentation

kaitai grammar: https://github.com/kaitai-io/kaitai_struct_formats/blob/master/executable/swf.ksy

Sources

From Kaitai Struct format gallery, PRONOM, Wikidata. Updated 2026-10-24.

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