How Convert Video for TV works
Smart TVs have a media player for videos on a USB stick, but each model supports its own list of formats, and a video that plays on a computer often gets "unsupported file", no picture or no sound on the TV. Common causes are WebM with VP9 or AV1, 10-bit HEVC on older sets, AVI with old codecs, and DTS or other surround sound that many recent TVs no longer license. This converter re-encodes the video into the combination every smart TV plays: H.264 video and AAC sound in an MP4 file.
The video is encoded with H.264 High profile at level 4.1, the level Blu-ray and most TV players are built around, up to 1920 by 1080 pixels at no more than 30 frames per second, with the bitrate capped at 12 Mbps. The 720p setting fits the picture inside 1280 by 720, capped at 6 Mbps, for older HD-ready sets or a smaller file. Sound becomes stereo AAC at 192 kbps and 48 kHz; surround tracks are mixed down to stereo, which every TV and soundbar plays.
The picture keeps its shape and is never enlarged, so an old 480p video stays 480p and the TV scales it up itself, as it does with any source. Footage at 50 or 60 frames per second is brought down to 30, which keeps it within level 4.1 at 1080p.
The conversion runs on your device with ffmpeg compiled to WebAssembly. The engine downloads the first time, about 32 MB, and is cached for later visits. Every frame is re-encoded, which takes a while: in our tests a recent laptop needed about two minutes for each minute of full HD video, smaller sizes are quicker, and phones are slower. Your videos are never uploaded, and several can be converted in one go.
Copy the MP4 to a USB stick and plug it into the TV. Sticks formatted as FAT32 cannot hold a file larger than 4 GB; for longer films, format the stick as exFAT, which most smart TVs made in the last several years read.
Convert Video for TV options explained
| 1080p | H.264 High profile, level 4.1, up to 1920x1080, 30 fps, 12 Mbps cap. |
|---|---|
| 720p | H.264 High profile, level 4.1, up to 1280x720, 30 fps, 6 Mbps cap. |
| Sound | AAC, stereo, 192 kbps, 48 kHz; surround is mixed down. |
| Container | MP4 with the index at the front (fast start). |
| Picture | Never stretched or enlarged. |
When to use it
Convert for TV when a film on a USB stick shows "unsupported file" or plays without sound, when home videos from a phone or camera need to play on the living-room TV, when a WebM or MKV download will not open in the TV's media player, or when a DTS soundtrack plays silently.
If a video plays on the TV but without sound, the soundtrack is usually DTS or another surround format the TV does not license. Converting here replaces it with AAC, which fixes the silence.
About these device presets
Every device plays H.264 video with AAC sound in an MP4 file, but not every H.264 file. Encoders describe a file with a profile, which says which compression features it uses, and a level, which caps its size, frame rate and bitrate, and a device's decoder is built for particular profiles and levels. A file above them may stutter, play without picture or be refused. Each preset here sets the profile, level, largest size and bitrate cap that its devices are known to handle, using x264, the widely used open-source H.264 encoder, inside ffmpeg compiled to WebAssembly. The encoding quality is set by a constant rate factor, so simple scenes take fewer bits and complex ones more, within the cap. Everything happens on your own device, so private videos are never uploaded.
Convert Video for TV troubleshooting
The TV still does not list the file
Check the stick's format: some TVs read only FAT32 or exFAT, not NTFS. Put the file in the top folder of the stick.
The file is over 4 GB and will not copy
The stick is formatted as FAT32. Format it as exFAT, or choose 720p for a smaller file.
It is slow
Every frame is re-encoded on your device. Long films take a long time in a browser; choose 720p to speed it up, or use a desktop app for many hours of video.
How to use Convert Video for TV, step by step
- Press "Choose videos" or drag files onto the box.
- Set the options if you need to; the defaults suit most uses.
- Press "Convert for TV". The work happens on your device.
- Save the result with its download button.
Is it safe to do this online?
With most online tools, "online" means your file is uploaded to a company's server, processed there and kept for a while before it is deleted. Here it is not. The page downloads the tool's code to your browser, and your file is read and processed inside the tab on your own device. It is never sent to TapToConvert or anyone else.
You can check this yourself: once the page and its engine have loaded, turn off Wi-Fi and the tool still works. That also means there is no queue, no daily limit and no file size cap set by a server; the only limit is the memory your browser gives a single tab.
Convert Video for TV FAQ
Which TVs does it work with?
Smart TVs from Samsung, LG, Sony, Philips, Panasonic, TCL, Hisense and others all play H.264 MP4 with AAC sound from USB.
Does it keep 4K?
No. The output is at most 1080p, which every smart TV plays; 4K TVs scale it up.
Will surround sound be kept?
No. Sound is mixed down to stereo AAC, which every TV plays.
Does it work for streaming to the TV?
Yes. The same MP4 plays through Plex, a DLNA server, a Chromecast or a TV box.
Is it free?
Yes. No sign-up, no watermark and no limit on use. TapToConvert is supported by advertising.
Are my files uploaded?
No. Everything happens inside your browser tab, on your own device.