FLV to SNDT Converter

Isolate the sound from FLV videos and convert to SNDT

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No Installation

The converter runs entirely in your web browser. No plugins, no apps, no downloads — just open convertio.tools and start converting immediately.

Audio Extraction

Pull the soundtrack from FLV video and save it as SNDT. Keep the audio you need without the video weight — ideal for music and podcasts.

Batch Processing

Upload and convert multiple files simultaneously. Our cloud infrastructure processes them in parallel, saving you time on larger jobs.

How to convert FLV to SNDT

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose sndt or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your sndt file right afterwards

About formats

FLV (Flash Video) is a container format originally developed by Macromedia and later maintained by Adobe Systems after the 2005 acquisition. The format gained support for standalone playback with Flash Player 7 in 2003 and quickly became the dominant video format on the web, powering platforms like YouTube, Hulu, and Vimeo during the late 2000s. FLV files typically contain video encoded with the Sorenson Spark or VP6 codec alongside MP3 or ADPCM audio, wrapped in a lightweight proprietary container optimized for streaming delivery. The major strength of FLV was its ability to deliver consistent video playback across different operating systems and browsers through the ubiquitous Flash Player plugin, solving the fragmentation problem that plagued web video at the time. FLV files begin with a compact header followed by tagged data packets, a structure that enables fast seeking and efficient progressive download. The container supports embedded metadata with cue points, enabling interactive features like chapter navigation and timed events. FLV transformed online video from an unreliable niche experience into a mainstream medium, fundamentally reshaping entertainment, education, and communication on the internet. Although HTML5 video and modern codecs have replaced Flash-based delivery, FLV files remain in countless archives and legacy systems.
Developer: Adobe Systems
Initial release: 2003
SNDT is the audio format associated with Sndtool, an early MS-DOS sound utility from the early 1990s that appeared alongside the spread of Sound Blaster cards in PCs. Unlike the headerless Sounder format, SNDT files include a brief header with the sample rate and data length — a meaningful improvement that let playback software determine timing automatically. Audio data is stored as 8-bit unsigned PCM, typically at 8000 to 22050 Hz in mono. Sndtool functioned as a simple waveform recorder and player, often distributed as shareware or bundled with sound card drivers. A key advantage over competing DOS audio formats was this self-describing header, which eliminated the guesswork of playing unfamiliar files — a real problem before standardized multimedia frameworks existed. The format was also efficient to decode, requiring no decompression and minimal CPU overhead on the 286 and 386 processors of the time. SNDT files served as building blocks for early PC games and multimedia presentations, where developers needed reliable audio across the limited Sound Blaster hardware ecosystem. Today, SNDT survives in retro software archives and is supported by SoX for conversion to modern formats.
Developer: Sndtool (MS-DOS)
Initial release: 1992

Frequently Asked Questions

What is the benefit of converting FLV to SNDT?

Some professional or archival systems require SNDT format. Converting FLV to SNDT makes your audio usable in those dedicated platforms and tools.

How can I open SNDT files?

You can play SNDT with SoX and retro DOS-era audio applications.

How long does FLV to SNDT conversion take?

Conversion speed varies by file length and bitrate. Short FLV clips become SNDT files in seconds, while longer recordings may take a few minutes.

Is the conversion private and secure?

We take privacy seriously — uploaded FLV files are erased once converted, and SNDT outputs are automatically deleted within 24 hours.

Can I batch convert multiple FLV files?

Batch conversion is supported. Add multiple FLV recordings and convert them to SNDT simultaneously — our servers handle them in parallel.

Can I convert FLV to SNDT on my phone?

Absolutely. The converter runs entirely in your mobile browser on iOS or Android — upload FLV, pick SNDT, and save the output to your device.