Free online 264 to TS converter

What the 264 format is

.264 files normally contain a raw H.264/AVC elementary video stream without a standard container. CCTV recorders, IP cameras, screen-capture tools, encoder hardware, and developer utilities can create this format. A raw stream generally has no filename-level metadata, audio track, reliable timestamps, or container index, so some players cannot determine its frame rate or seek accurately.

What the TS format is

.ts is an MPEG transport stream container designed for broadcast, IPTV, Blu-ray-compatible workflows, and error-prone transmission. It stores H.264 video in packetized form and can also carry AAC, AC-3, MPEG audio, subtitles, program metadata, timestamps, and multiple programs. TS is preferable when a playback device or broadcast tool specifically expects transport-stream packets rather than a raw video elementary stream.

How to actually convert 264 to TS

Using FFmpeg without re-encoding

FFmpeg is the most direct desktop method when the source contains valid H.264 data. Run:

ffmpeg -f h264 -i input.264 -c:v copy -f mpegts output.ts

The -f h264 option identifies the raw input, -c:v copy preserves the encoded video, and -f mpegts selects the output container. If the source frame rate is not signaled correctly, provide it explicitly, for example:

ffmpeg -f h264 -framerate 25 -i input.264 -c:v copy -f mpegts output.ts

Replace 25 with the camera or encoder's actual frame rate. A wrong value changes playback speed and timestamp spacing.

Re-encoding when remuxing is rejected

Some raw streams contain unusual NAL units or parameters that an MPEG-TS target does not accept cleanly. Re-encode with:

ffmpeg -f h264 -framerate 25 -i input.264 -c:v libx264 -pix_fmt yuv420p -f mpegts output.ts

Re-encoding takes longer and can reduce quality, but it can produce a more compatible H.264 stream. Adjust -crf 18 to -crf 28 for a quality-versus-size setting; lower values preserve more quality and create larger files.

Using the online converter

You can convert the file on the 101convert.com website for free without installing software. Upload the .264 file, choose TS as the output format, start the conversion, and download the resulting .ts file. The service must be able to identify the raw stream's frame rate; supply that value if the interface provides an input option.

Quality, compatibility, and limitations

Stream copying does not reduce video quality because it moves the existing H.264 bitstream into another container. It also cannot restore missing audio, timestamps, metadata, or damaged frames. A raw .264 file usually contains video only; adding audio requires a separate synchronized audio file and an appropriate FFmpeg mapping command.

For a raw stream with a separate AAC track, use:

ffmpeg -f h264 -framerate 25 -i video.264 -i audio.aac -map 0:v:0 -map 1:a:0 -c:v copy -c:a aac -f mpegts output.ts

Some hardware players require specific video parameters such as H.264 High Profile, constant frame rate, AAC audio, or 188-byte MPEG-TS packets. Check the device specification before choosing re-encoding settings. If the output has frozen frames, incorrect duration, or audio drift, verify the source frame rate and use re-encoding to generate fresh timestamps.