How to convert a .SEQ file online
Three steps, all tab.
Open your file
Drop your .SEQ file and every video, audio and subtitle track inside is listed with its codec, resolution, frame rate and language.
Preview
See frames from across your .SEQ file before you convert, even when your browser can't play the codec inside.
Convert
Pick MP4, WEBM or MP3, or repack to MKV without re-encoding. Play the result right here, then download it.
What is a .SEQ file?
Everything worth knowing about Sony PlayStation MIDI Sequence File.
A .seq file is most commonly a Sony PlayStation 1 audio sequence (a binary MIDI-like format used in PS1 game music), a PowerTracks Pro Audio project file, or a plain-text DNA sequence from a bioinformatics tool. To open a PS1 seq file, use seq2mid to convert it to MIDI, or use Awave Studio. For PowerTracks .seq files, open with PowerTracks Pro Audio. The extension is ambiguous, so identifying the source matters.
Programs that open .SEQ files
- Windows
- PowerTracks Pro Audio, Awave Studio, DuckStation (PS1 emulator), seq2mid (command-line tool)
- Linux
- seq2mid (command-line tool)
| Full name | Sony PlayStation MIDI Sequence File |
|---|---|
| Developer | Sony Computer Entertainment |
| First released | 1994 (Sony PlayStation / PS1) |
| Category | Audio & Video |
| MIME type | application/octet-stream |
| Signature | 70 53 45 51 (pSEQ) |
Related viewers
Other free tools to open and preview your files.
Is my .SEQ file uploaded to a server?
No. Your .SEQ 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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