TS to FLV Converter
Some legacy Flash-based systems require FLV format. Converting TS to FLV makes broadcast and streaming content compatible with archived Flash platforms, enabling broadcast recordings to be used in legacy CMS systems and Flash-dependent applications.
Broadcast TS content is transcoded to the FLV container. Quality depends on the FLV codec used. H.264 in FLV preserves broadcast quality well, while older FLV codecs may reduce quality compared to the original broadcast source.
How to Convert TS to FLV
- 1
Select your TS file from your device or drag it into the upload area.
- 2
Choose FLV as the target output format.
- 3
Click Convert and download your FLV file when ready.
TS vs FLV — Format Comparison
| Feature | TS | FLV |
|---|---|---|
| Full Name | MPEG Transport Stream | Flash Video |
| Type | Video | Video |
| Codec | MPEG-2 / H.264 / H.265 | Sorenson Spark / H.264 / VP6 |
| Lossless | No | No |
| Extension | .ts | .flv |
| Best For | Digital TV and HDTV recordings | Legacy web video archives |
TS Strengths
- Error-resilient for broadcast transmission
- Standard format for HDTV and Blu-ray
- Supports multiple audio and subtitle streams
FLV Strengths
- Very small file sizes
- Fast streaming performance
- Widely used in legacy video archives
Frequently Asked Questions
When to Convert TS to FLV
- Providing broadcast recordings to legacy Flash-based web platforms
- Converting TV captures for archived Flash CMS systems
- Supporting Flash-dependent internal media systems with broadcast content
- Creating FLV files from TS sources for specific legacy requirements
Related Conversions
Embed This Converter on Your Website
Add a free TS to FLV converter to your site with one line of code. No API key needed.
Get Embed CodeAbout Our TS to FLV Converter
This converter uses FFmpeg compiled to WebAssembly (WASM) to transform your TS files into FLV format entirely inside your web browser. When you select a file for conversion, the processing happens locally on your device. Your file is never uploaded to any server, never transmitted over the internet, and never stored anywhere outside your own computer. This privacy-first architecture makes our tool safe for confidential and sensitive content — including legal recordings, medical files, financial presentations, personal media, and any other material you would not want on a third-party server.
The conversion process works by decoding the TS input using FFmpeg's highly optimized decoders, then encoding the output in FLV format with carefully tuned settings that balance quality and file size. When possible, the tool uses stream copy mode to remux (rewrap) compatible streams without re-encoding, which preserves the original quality with zero generational loss. When re-encoding is necessary due to codec differences between the two formats, the converter uses high-quality encoding settings to minimize any visible or audible quality reduction.
Supported input formats include MP4, MOV, AVI, MKV, and WebM for video, with automatic detection of the codecs and parameters inside your source file. The output is optimized for maximum compatibility with modern devices and platforms including Windows, macOS, Linux, iOS, Android, smart TVs, and all major web browsers.
Why browser-based conversion is safer: traditional online converters require you to upload your file to a remote server, where it is processed by third-party infrastructure and then made available for download. This workflow exposes your data to interception during upload, unauthorized access on the server, unclear data retention policies, and potential data breaches. Professionals in regulated industries such as healthcare (HIPAA), legal (attorney-client privilege), and finance (SOX, GDPR) often cannot use server-based converters without violating compliance requirements. Our WebAssembly-powered approach eliminates all of these risks by ensuring your data never leaves the browser sandbox on your own device.
The tool handles files up to 500 MB on desktop browsers and 200 MB on mobile devices. No account registration, no software installation, and no recurring subscription is required. Conversion typically completes in seconds for small files and a few minutes for larger ones, depending on your device's processing capabilities. Once the conversion is finished, you can download the result immediately and the source data is discarded from browser memory.