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Play a SSW video online, free

Play and convert .SSW files online. Watch video, inspect tracks and convert to MP4, WEBM or MP3, free.

Drop your .SSW file here

Opens your .SSW file right here.

Choose file
Inspect up to 4 GB · convert up to ~500 MB
Instant. Opens in seconds
Real FFmpeg compiled to WebAssembly
100% free. No watermarks
Engines load only when needed: MediaInfo (2.4 MB) to inspect, FFmpeg (32 MB, cached after first use) to convert.

How to convert a .SSW file online

Three steps, all tab.

01

Open your file

Drop your .SSW file and every video, audio and subtitle track inside is listed with its codec, resolution, frame rate and language.

02

Preview

See frames from across your .SSW file before you convert, even when your browser can't play the codec inside.

03

Convert

Pick MP4, WEBM or MP3, or repack to MKV without re-encoding. Play the result right here, then download it.

What is a .SSW file?

Everything worth knowing about Sealed Flash File.

An SSW file is a sealed flash file categorized as a video format. These files contain protected multimedia content designed to be accessed through specific software. They are typically opened and viewed using the Unsealer program.

Programs that open .SSW files

Windows
Unsealer (Oracle/CengageBrain)
.SSW format details
Full nameSealed Flash File
DeveloperSealedMedia Ltd (acquired by Oracle Corporation ~2008)
First releasedearly 2000s (SealedMedia DRM platform)
CategoryAudio & Video
MIME typevideo/vnd.sealed.swf
Signature53 6F 66 74 53 45 41 4C 20 (SoftSEAL)

Related viewers

Other free tools to open and preview your files.

Is my .SSW file uploaded to a server?

No. Your .SSW file is converted for you. The converted file is created in memory,.

Why is conversion slower than desktop software?

Browsers give web pages a single CPU core for this kind of work and no hardware video encoder. Short clips convert in seconds; for long 4K films a desktop app like HandBrake is faster. Use Start and Length to convert just the part you need.

Which output format should I pick?

MP4 plays on every phone, TV and browser. WEBM is an open format that's great for the web. MP3 keeps only the sound. MKV (no re-encode) is instant and lossless, but only changes the container.

Can I keep all audio tracks and subtitles?

The MKV (no re-encode) option copies every track as-is. MP4 and WEBM keep the first video and audio track, which is what most players use.

Why can't some files be converted?

Files protected with DRM (for example purchased iTunes .m4p songs or some .wmv rentals) are encrypted. We can show what's inside, but nobody can convert them without the key.

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