Free online SND to AIFF converter

Source format: SND

SND is a generic audio file extension used by several different sound formats, depending on the platform and software that created it. In practice, SND files are often found in older systems, legacy applications, game assets, or simple audio archives. Because the extension is not tied to one single standard, an SND file may contain compressed or uncompressed audio, and its exact compatibility can vary widely.

People who work with legacy audio, old Macintosh or Windows software, retro games, or archived media often encounter SND files. Typical use cases include playback in the original application, extraction from old software packages, and conversion to a more widely supported format for editing or preservation.

Target format: AIFF

AIFF (Audio Interchange File Format) is a well-established uncompressed audio format developed by Apple. It is widely supported by professional audio tools and is commonly used for high-quality, lossless audio storage. AIFF is especially useful in music production, sound design, and archival workflows because it preserves the original audio data without lossy compression.

Advantages of AIFF include broad support in desktop audio software, predictable quality, and easy editing in digital audio workstations. It is a good choice when you want to convert an older or less compatible audio file into a format that is easier to open, inspect, and edit.

How to perform the conversion

The best method depends on what kind of SND file you have, since SND is not a single universal standard. If your file opens correctly in an audio editor or player, you can usually export or save it as AIFF.

Using Audacity:

1. Open Audacity and import the SND file with File → Import → Audio.
2. Check that the waveform loads and plays correctly.
3. Choose File → Export → Export as AIFF.
4. Select the desired AIFF options and save the file.

Using VLC or another player to verify the source:

1. Open the SND file to confirm it contains valid audio.
2. If playback works, use an audio editor such as Audacity or a converter that supports the specific SND variant.
3. Export the audio to AIFF.

Using FFmpeg from the command line:

1. Try converting directly with ffmpeg -i input.snd output.aiff.
2. If FFmpeg recognizes the file, it will decode the audio and write an AIFF file.
3. If the file is not recognized, the SND variant may require a different tool or first need extraction from the original software.

You can also convert the file on 101convert.com for free, without installing any software.

Notes on quality, compatibility, and limitations

AIFF is lossless, so if the source SND audio is already uncompressed or only lightly compressed, the conversion will preserve the decoded audio quality. However, if the SND file uses a lossy codec, the conversion cannot restore lost detail.

The main limitation is that SND files are ambiguous: some are standard audio containers, while others are proprietary or application-specific. If a converter cannot open the file, the issue is usually not AIFF itself but the source SND variant. In that case, you may need the original software, a specialized extractor, or a different decoder before converting.

Metadata support may also be limited during conversion. AIFF can store some tags, but not every tool preserves them consistently. For archival work, it is a good idea to keep the original SND file until you confirm the AIFF output plays correctly and contains the expected audio.