Why is the first MP4 to MKV conversion slow to start?

The first audio or video conversion of your session downloads the FFmpeg.wasm runtime (~25 MB). Subsequent conversions skip that step. After it loads, MP4 → MKV re-encoding starts immediately.

Does the converter re-encode or just remux?

It re-encodes both video and audio so that the resulting MKV file is widely compatible. Pure remuxing is a future option but is not yet exposed in the UI.

What codec does the MKV output use?

H.264 video and AAC audio. Quality and bitrate are tuned for a sensible default.

Does video really not upload?

Correct. The conversion runs locally via FFmpeg.wasm. You can verify in DevTools: no outbound traffic carrying your file.

Mai sauya bidiyo · yana aiki 100% a cikin burauzar ku

MP4 zuwa MKV Converter

Maida bidiyon MP4 zuwa MKV a cikin burauzar ku. MP4 shine akwati mafi dacewa a duniya, H.264/AAC ta tsohuwa; MKV ne bude Matroska ganga, goyon bayan da yawa codecs da subtitle waƙoƙi. Sake shigar da bayanan yana gudana ta hanyar ginin WebAssembly FFmpeg - babu gonakin da ke samar da girgije, babu sandar lodawa, babu damuwa na sirri.

Babu lodawaBabu rajistaBabu bin diddigiKyauta, mara iyaka

Ajiye fayil ɗin MP4 ɗinku anan

ko danna don zaɓar fayil

Yadda ake amfani da shi

Ajiye bidiyon ku na MP4 akan shafin.
FFmpeg.wasm takalma a gida a farkon fara amfani da shi - ba shi ɗan lokaci, yana adanawa don sauran zaman ku.
Sake yin rikodin bidiyo zuwa MKV yana faruwa gaba ɗaya a cikin burauzar ku; bidiyon ku baya yin lodawa.
Zazzage fayil ɗin MKV lokacin da juyawa ya ƙare - manyan bidiyo suna ɗaukar mintuna kaɗan.

FAQ

Me yasa farkon MP4 zuwa MKV yake jinkirin farawa?

Canjin sauti ko bidiyo na farko na zamanku yana saukar da FFmpeg.wasm runtime (~25 MB). Juyawa masu zuwa sun tsallake wancan matakin. Bayan ya loda, MP4 → MKV sake shigar da shi yana farawa nan da nan.

Mai musanya yana sake yin rikodin ko kuma kawai remux?

Yana sake yin rikodin bidiyo da sauti biyu don yadda fayil ɗin MKV ya dace sosai. Remuxing mai tsabta zaɓi ne na gaba amma har yanzu ba a fallasa a cikin UI ba.

Wane codec ne abin fitarwa MKV ke amfani da shi?

H.264 bidiyo da AAC audio. An daidaita inganci da bitrate don tsoho mai ma'ana.

Shin da gaske ne bidiyon baya loda?

Daidai. Juyawa yana gudana cikin gida ta hanyar FFmpeg.wasm. Kuna iya tabbatarwa a cikin DevTools: babu zirga-zirga mai fita da ke ɗauke da fayil ɗin ku.