Конвертировать MKV в MP4 онлайн — бесплатно и быстро | ConvertIntoMP4 | ConvertIntoMP4

Подробнее о конвертации MKV в MP4

Как конвертировать

Upload your .mkv file by dragging it into the upload area or clicking to browse.

Choose your output settings. The default settings work great for most files.

Click Convert and download your .mp4 file when it's ready.

О конвертации MKV в MP4

MKV (Matroska) is beloved by video enthusiasts for its ability to store multiple audio tracks, subtitles, and chapters in a single file. However, this flexibility comes at the cost of compatibility—many devices and platforms struggle with MKV playback. Converting MKV to MP4 preserves your content while unlocking universal compatibility.

Our MKV to MP4 converter intelligently handles multi-track files, letting you select which audio and subtitle tracks to include. When your MKV already uses H.264 video, we perform a lossless remux that simply repackages the content in MP4 format—no quality loss whatsoever.

Зачем конвертировать MKV в MP4?

MKV files are common in video downloads, Blu-ray rips, and anime releases, but they frequently won't play on smart TVs, game consoles, or iOS devices. The "file not supported" error is frustrating when you just want to watch your content. Converting to MP4 eliminates these compatibility headaches.

MP4 is the universal language of digital video. Every smartphone, tablet, computer, smart TV, and streaming device plays MP4 without issues. Social media platforms, cloud storage services, and video hosting sites all accept MP4 natively. Your converted videos will work everywhere.

The conversion also simplifies multi-track files. MKV's support for 20+ audio tracks is overkill for most viewers. Our converter lets you extract just the tracks you need, creating a cleaner, smaller file that's easier to manage.

Типичные сценарии использования

Play MKV movies on smart TVs that only support MP4
Watch anime with embedded subtitles on iOS devices
Upload MKV content to video hosting platforms
Stream MKV files to Chromecast or AirPlay devices
Create smaller files by selecting specific audio tracks
Fix MKV playback issues on PlayStation and Xbox

Как это работает

For MKV files with H.264 video, we perform stream copy (remux) which preserves exact original quality in seconds. No re-encoding means no generation loss. The video bitstream is identical—only the container changes.

When re-encoding is necessary (for VP9, H.265/HEVC, or other codecs), we use high-quality x264 encoding with CRF 18-20. Audio tracks are converted to AAC 192kbps for compatibility, or you can keep the original audio with the "Preserve audio codec" option.

Subtitle handling offers three options: burn subtitles into the video (hardcoded), include as a selectable track (soft subtitles), or exclude entirely.

Качество и производительность

MKV to MP4 conversion is often completely lossless via remuxing. If your MKV uses H.264 video and AAC audio, the MP4 will be bit-for-bit identical to the source. Only files with incompatible codecs require transcoding, which our high-quality settings handle gracefully.

FFMPEG EngineFastLossless

Совместимость с устройствами

Device	MKV	MP4
iPhone/iPad	No	Native
Android	Partial	Native
Windows PC	Partial	Native
Mac	Partial	Native
Smart TV	Partial	Native
Web Browser	No

MKV to MP4: real-world performance

Speed	Instant — MKV and MP4 share the same codecs, so we remux (copy streams) rather than re-encode.
Output size	Unchanged (measured 3.38 MB → 3.38 MB).
Quality	Lossless — no re-encode.
Engine	FFmpeg, server-side.

Measured on our servers, June 2026, on a 10-second H.264/AAC MKV.

Советы для наилучших результатов

1H.264 MKV files remux instantly with zero quality loss
2Multiple audio tracks and subtitles may not all carry to MP4
3HEVC/H.265 MKV takes longer but ensures universal playback
4Consider keeping MKV for Plex/Jellyfin media servers that support it natively
5Batch convert downloaded anime or movie libraries efficiently

Часто задаваемые вопросы

Yes, when your MKV uses H.264 video. We remux (repackage) the streams without re-encoding, preserving exact original quality. Files with other codecs require transcoding but still maintain excellent quality.

MP4 supports multiple audio tracks. You can select which tracks to include during conversion. Most devices will play the first track by default.

You choose: burn them into the video permanently, include as a separate selectable track, or remove them. Burned subtitles work everywhere; soft subtitles require player support.

When remuxing is possible (H.264 video), we simply repackage without processing the actual video data. This completes in seconds regardless of video length.

Yes. We'll transcode HEVC to H.264 for maximum compatibility. This takes longer than remuxing but ensures your video plays everywhere.

MKV и MP4: сравнение

Характеристика	MKV	MP4
Полное название	Matroska Video	MPEG-4 Part 14
Расширение	.mkv	.mp4
Лучше всего подходит для	Multiple audio tracks	Universal compatibility

Convert MKV to MP4 — Free Online Converter

Как конвертировать

О конвертации MKV в MP4

Зачем конвертировать MKV в MP4?

Типичные сценарии использования

Как это работает

Качество и производительность

Совместимость с устройствами

MKV to MP4: real-world performance

Рекомендуемые настройки для платформ

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Советы для наилучших результатов

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MKV и MP4: сравнение