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Play a ADTS video online, free

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

Drop your .ADTS file here

Opens your .ADTS 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 .ADTS file online

Three steps, all tab.

01

Open your file

Drop your .ADTS 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 .ADTS 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 .ADTS file?

Everything worth knowing about Audio Data Transport Stream.

An ADTS file contains AAC audio encoded with Audio Data Transport Stream framing. It is functionally identical to a .aac file - same codec, same data, different extension. Open it with VLC, Windows Media Player, or foobar2000. If a player refuses it, rename the file from .adts to .aac.

Programs that open .ADTS files

Windows
Windows Media Player, VLC media player, FFmpeg, Foobar2000
macOS
VLC media player, QuickTime Player, Smart Converter
Linux
VLC media player, FFmpeg
Android
VLC for Android
iOS
VLC for Mobile
.ADTS format details
Full nameAudio Data Transport Stream
DeveloperISO/IEC (MPEG group)
First released1997 (MPEG-2 Part 7, ISO/IEC 13818-7)
CategoryAudio & Video
MIME typeaudio/aac
SignatureFF F1

Related viewers

Other free tools to open and preview your files.

Is my .ADTS file uploaded to a server?

No. Your .ADTS 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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