{"id":961,"date":"2026-07-13T09:13:00","date_gmt":"2026-07-13T13:13:00","guid":{"rendered":"https:\/\/www.xconvert.com\/blog\/?p=961"},"modified":"2026-06-27T01:37:49","modified_gmt":"2026-06-27T05:37:49","slug":"convert-mkv-to-mp4","status":"publish","type":"post","link":"https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4","title":{"rendered":"How to Convert MKV to MP4 (Keep Quality, Add Compatibility)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">You downloaded a movie or exported a recording and got a <code>.mkv<\/code> file \u2014 then your iPhone, your smart TV, or a website upload form refused to touch it. MKV (Matroska) is a superb, flexible container, but it\u2019s the format Apple devices, browsers, and most consumer hardware don\u2019t play natively. The good news: converting MKV to MP4 is usually a fast <strong>container swap<\/strong> that keeps your video pixel-for-pixel identical \u2014 no re-compression, no quality loss \u2014 as long as the streams inside are MP4-friendly. This guide explains when that holds, when a re-encode is unavoidable (DTS\/TrueHD audio, styled subtitles), and how to do it. We verified the container facts against Matroska\u2019s own spec, MDN, and caniuse.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quick answer:<\/strong> MKV is an open, flexible container; <strong>MP4 is the one that plays everywhere<\/strong> \u2014 Apple devices, browsers (96%+ support), TVs, consoles. If your MKV already holds <strong>H.264\/H.265 video + AAC audio<\/strong>, MKV\u2192MP4 is a <strong>remux<\/strong> (just relabel the container) that copies the streams untouched \u2014 <strong>no quality loss, near-instant<\/strong>. A <strong>re-encode<\/strong> is only needed when the MKV uses codecs MP4 doesn\u2019t carry (e.g. <strong>DTS, Dolby TrueHD audio<\/strong>, or <strong>ASS\/PGS subtitles<\/strong>). MKV can stack many audio\/subtitle tracks; MP4 handles subtitles more narrowly, so some tracks may not survive.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Jump to a section<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"#difference\">MKV vs MP4: what\u2019s actually different<\/a><\/li><li><a href=\"#remux\">Remux vs re-encode: keeping quality<\/a><\/li><li><a href=\"#carry\">What MP4 can and can\u2019t carry (the fact traps)<\/a><\/li><li><a href=\"#compatibility\">Compatibility: why MP4 wins for sharing<\/a><\/li><li><a href=\"#tracks\">What happens to multiple audio and subtitle tracks<\/a><\/li><li><a href=\"#tool\">Convert MKV to MP4 on xconvert<\/a><\/li><li><a href=\"#faq\">FAQ<\/a><\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"difference\">MKV vs MP4: what\u2019s actually different<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Both MKV and MP4 are <strong>containers<\/strong>, not codecs. A container is the wrapper; the actual video and audio live inside it as encoded <em>streams<\/em> (H.264, AAC, and so on). Neither MKV nor MP4 compresses video on its own \u2014 so \u201cMKV vs MP4\u201d is a question about the wrapper, not the picture.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>MKV (Matroska)<\/strong> is an open, EBML-based container designed to hold almost anything: any number of video, audio, and subtitle tracks, chapters, attachments (like fonts), and rich metadata. Matroska\u2019s own spec describes it as \u201cmodularly expandable\u201d with \u201cselectable subtitle\/audio\/video streams.\u201d That flexibility is why it\u2019s popular for movies, anime, and archival rips \u2014 and why it carries codecs other containers won\u2019t.<\/li><li><strong>MP4 (MPEG-4 Part 14)<\/strong> is the ISO standard derived from Apple\u2019s QuickTime file format (ISO\/IEC 14496-14, finalized 2003). It supports a focused set of widely-used codecs and is, per MDN, \u201cbroadly supported\u201d \u2014 the default for web video, phones, and editors\u2019 \u201cexport\u201d presets.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The practical upshot: MKV is the better <em>workshop<\/em> format (hold everything), MP4 is the better <em>delivery<\/em> format (plays everywhere). Converting MKV\u2192MP4 is almost always about moving from the workshop to delivery.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"remux\">Remux vs re-encode: keeping quality<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This is the single most important thing to understand, because it determines whether you lose any quality at all.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Remux (the fast, lossless path).<\/strong> If the streams inside your MKV are already codecs MP4 supports \u2014 overwhelmingly the common case: <strong>H.264 or H.265 video with AAC audio<\/strong> \u2014 the converter doesn\u2019t have to touch the compressed data. It just copies the existing video and audio streams into a new MP4 wrapper. Because nothing is decoded and re-compressed:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Quality is identical<\/strong> \u2014 the pixels and audio samples are bit-for-bit the same.<\/li><li><strong>It\u2019s near-instant<\/strong> \u2014 seconds, not minutes, since there\u2019s no encoding.<\/li><li><strong>File size barely changes<\/strong> \u2014 the new MP4 is within a few KB of the original.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Re-encode (only when forced).<\/strong> If the MKV holds something MP4 can\u2019t carry, that stream must be decoded and re-compressed into an MP4-compatible codec \u2014 for example, <strong>DTS, DTS-HD, FLAC, or Dolby TrueHD audio re-encoded to AAC<\/strong>. Re-encoding is slower and is <em>lossy<\/em> for the stream being converted (you can\u2019t perfectly recover lossless DTS-HD once it\u2019s AAC), though AAC at a healthy bitrate is transparent to most listeners. Video almost never needs re-encoding for MKV\u2192MP4, because H.264\/H.265 \u2014 the codecs MKV files usually carry \u2014 are exactly what MP4 expects.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So the honest rule: <strong>MKV\u2192MP4 keeps full quality whenever it can remux, and only sacrifices quality on the specific streams MP4 won\u2019t accept.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"carry\">What MP4 can and can\u2019t carry (the fact traps)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Here\u2019s where MKV\u2019s flexibility outruns MP4\u2019s. Matroska\u2019s codec spec lists audio IDs for DTS (<code>A_DTS<\/code>), AC-3 (<code>A_AC3<\/code>), TrueHD-class formats, ALAC, WavPack, and more; MP4\u2019s practical codec set is narrower.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Stream type<\/th><th>MKV holds<\/th><th>MP4 holds (common, supported)<\/th><th>Needs re-encode for MP4?<\/th><\/tr><\/thead><tbody><tr><td>Video<\/td><td>H.264, H.265, VP9, AV1, MPEG-2, and more<\/td><td>H.264 (AVC), H.265 (HEVC), AV1, VP9<\/td><td>Usually <strong>no<\/strong> (H.264\/H.265 pass straight through)<\/td><\/tr><tr><td>Audio<\/td><td>AAC, MP3, AC-3, <strong>DTS, DTS-HD, TrueHD<\/strong>, FLAC, Vorbis, Opus, ALAC<\/td><td>AAC, MP3, FLAC, Opus (AAC is the universal default)<\/td><td><strong>Yes<\/strong> for DTS\/DTS-HD\/TrueHD \u2192 AAC<\/td><\/tr><tr><td>Subtitles<\/td><td>SRT\/UTF-8, <strong>ASS\/SSA<\/strong> (styled), <strong>PGS<\/strong> (Blu-ray image), VobSub, WebVTT<\/td><td>tx3g (MPEG-4 Timed Text) \/ basic text<\/td><td>Often <strong>dropped or flattened<\/strong> \u2014 styled\/image subs don\u2019t map cleanly<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The two traps to remember: <strong>(1)<\/strong> lossless\/cinema audio (DTS-HD, TrueHD) won\u2019t fit in MP4 and gets re-encoded to AAC, and <strong>(2)<\/strong> the rich subtitle formats MKV is famous for \u2014 ASS\/SSA styling, PGS Blu-ray subs \u2014 have no direct MP4 equivalent, so they may not survive the conversion. (MDN notes MP4 \u201csupports several of the most-used codecs,\u201d not all of them \u2014 that\u2019s the gap.)<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"compatibility\">Compatibility: why MP4 wins for sharing<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If MKV is so flexible, why convert at all? Because almost nothing outside dedicated media players plays it natively.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Apple platforms don\u2019t support MKV natively.<\/strong> QuickTime Player can\u2019t open it, and iPhones\/iPads won\u2019t play it without a third-party app like VLC. Apple\u2019s own \u201cfile won\u2019t play\u201d guidance flags <code>.mkv<\/code> (alongside <code>.avi<\/code>, <code>.wmv<\/code>) as a format you typically need to convert. MP4\/M4V, by contrast, is essentially Apple\u2019s native lineage \u2014 MP4 is derived from QuickTime\u2019s file format.<\/li><li><strong>Browsers don\u2019t play MKV.<\/strong> There\u2019s no MKV <code>&lt;video&gt;<\/code> support across mainstream browsers. MP4 with H.264, on the other hand, sits at roughly <strong>96.65% global browser support<\/strong> per <a href=\"https:\/\/caniuse.com\/mpeg4\">caniuse<\/a> \u2014 the closest thing to a universal web video format.<\/li><li><strong>TVs, consoles, and upload forms<\/strong> overwhelmingly expect MP4. Smart TVs, PlayStation\/Xbox, and most \u201cdrop a video here\u201d web uploaders accept MP4 and balk at MKV.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">That\u2019s the whole trade: you give up MKV\u2019s track flexibility to gain \u201cplays anywhere.\u201d If your goal is a clip for the web, an open alternative is also worth knowing \u2014 see <a href=\"https:\/\/www.xconvert.com\/blog\/mp4-vs-webm-web-video\/\">MP4 vs WebM for web video<\/a>. And the same remux-when-possible logic applies to Apple\u2019s other container \u2014 see <a href=\"https:\/\/www.xconvert.com\/blog\/convert-mov-to-mp4-windows-mac\/\">convert MOV to MP4 on Windows and Mac<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"tracks\">What happens to multiple audio and subtitle tracks<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">MKV\u2019s signature feature is stacking tracks: a single file can carry the English and Japanese audio, plus five subtitle languages, plus a director\u2019s commentary. MP4 <em>can<\/em> hold multiple audio tracks too, but in practice it\u2019s less reliable across players, and its subtitle support is far narrower.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">What this means when you convert:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Video<\/strong> \u2014 the single video stream carries over cleanly.<\/li><li><strong>Audio<\/strong> \u2014 your default\/primary audio track converts reliably; extra alternate-language tracks may or may not be preserved depending on the tool, and any DTS\/TrueHD track gets re-encoded to AAC.<\/li><li><strong>Subtitles<\/strong> \u2014 soft (selectable) subtitles are the most fragile part. Plain-text subs may transfer; <strong>styled ASS\/SSA and image-based PGS subs frequently break or drop<\/strong>, because MP4 has no matching subtitle type. If a multi-language, styled-subtitle file is precious, keep the MKV original and convert a copy.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">If you only need one language and one audio track \u2014 the common \u201cmake this play on my phone\u201d case \u2014 none of this bites: you get a clean MP4 of the same quality.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"tool\">Convert MKV to MP4 on xconvert<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/www.xconvert.com\/convert-mkv-to-mp4\">xconvert MKV to MP4 converter<\/a> does the container swap on our servers, so it works the same on Windows, Mac, Linux, and mobile \u2014 nothing to install:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1250\" src=\"https:\/\/www.xconvert.com\/blog\/wp-content\/uploads\/2026\/06\/step-01-control-28.png\" alt=\"Quality Preset defaults to Very High (Recommended) \u2014 keep it to convert without losing quality\" class=\"wp-image-1229\" srcset=\"https:\/\/www.xconvert.com\/blog\/wp-content\/uploads\/2026\/06\/step-01-control-28.png 1600w, https:\/\/www.xconvert.com\/blog\/wp-content\/uploads\/2026\/06\/step-01-control-28-300x234.png 300w, https:\/\/www.xconvert.com\/blog\/wp-content\/uploads\/2026\/06\/step-01-control-28-1024x800.png 1024w, https:\/\/www.xconvert.com\/blog\/wp-content\/uploads\/2026\/06\/step-01-control-28-768x600.png 768w, https:\/\/www.xconvert.com\/blog\/wp-content\/uploads\/2026\/06\/step-01-control-28-1536x1200.png 1536w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<ol class=\"wp-block-list\"><li>Open <a href=\"https:\/\/www.xconvert.com\/convert-mkv-to-mp4\">xconvert.com\/convert-mkv-to-mp4<\/a> and click <strong>Upload<\/strong> to add your file \u2014 <strong>From my Computer<\/strong>, <strong>From Google Drive<\/strong>, or <strong>From Dropbox<\/strong>.<\/li><li>For most files, <strong>leave the defaults<\/strong> \u2014 the page notes its \u201cdefaults are optimized for the best results.\u201d A standard H.264\/H.265 + AAC MKV converts cleanly to MP4 without you touching anything.<\/li><li>If you do need control, open <strong>Advanced Options<\/strong> (the gear icon). Under <strong>File Compression<\/strong> you can choose a <strong>Quality Preset<\/strong> (defaults to <strong>Very High (Recommended)<\/strong>), a <strong>Specific file size<\/strong>, <strong>Constant Bitrate<\/strong>, <strong>Variable Bitrate<\/strong>, or <strong>Constant Quality<\/strong> \u2014 and under video adjustment you can change <strong>Resolution<\/strong> or <strong>Trim<\/strong> a time range.<\/li><li>Start the conversion and download your MP4. It now plays on iPhone, smart TVs, consoles, browsers, and macOS.<\/li><li>If your source has DTS\/TrueHD audio or styled subtitles, check the result plays the audio you expect and that any subtitles you need are present \u2014 those are the streams most affected by the move to MP4.<\/li><\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Your file uploads over an encrypted connection, is processed on our servers, and is automatically deleted a few hours later. Nothing stays around.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you don\u2019t want to change format at all and only need a smaller MKV, that\u2019s a different job \u2014 but for compatibility, MP4 is the answer.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"faq\">FAQ<\/h2>\n\n\n\n<h5 class=\"wp-block-heading\">Does converting MKV to MP4 lose quality?<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Not when it can remux<\/strong> \u2014 and for the common case (H.264\/H.265 video + AAC audio) it does exactly that, copying the streams into the new container untouched, so the result is <strong>bit-for-bit identical<\/strong> to the original. Quality is only affected when a stream MP4 can\u2019t carry \u2014 such as <strong>DTS-HD or Dolby TrueHD audio<\/strong> \u2014 has to be re-encoded to AAC.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Why won\u2019t my MKV file play on my iPhone, TV, or in a browser?<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Because <strong>MKV isn\u2019t natively supported<\/strong> on Apple devices, in mainstream browsers, or on most TVs and consoles. Apple\u2019s own support guidance lists <code>.mkv<\/code> as a format you typically need to convert, and there\u2019s no MKV <code>&lt;video&gt;<\/code> support in browsers. <strong>MP4 with H.264 plays on roughly 96% of browsers<\/strong> and on virtually every device \u2014 which is exactly why you convert.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Is MKV or MP4 better quality?<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Neither \u2014 they\u2019re containers, not codecs.<\/strong> The picture quality comes from the video codec inside (H.264, H.265, etc.), and that codec can sit in either container at the same quality. MKV is more <em>flexible<\/em> (more codecs, more tracks); MP4 is more <em>compatible<\/em>. Converting between them, when it remuxes, changes the wrapper without changing the quality.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Will my subtitles and multiple audio tracks survive the conversion?<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The primary audio track and plain-text subtitles usually survive; styled and image subtitles often don\u2019t.<\/strong> MP4\u2019s subtitle support is narrower than MKV\u2019s, so <strong>ASS\/SSA styled subs and PGS Blu-ray image subs frequently drop or break<\/strong>. Extra alternate-language audio tracks may or may not carry depending on the tool. If a multi-track, styled-subtitle file matters, keep the MKV original and convert a copy.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Is MKV to MP4 conversion fast?<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>When it remuxes, yes \u2014 near-instant<\/strong>, because no video is decoded or re-compressed; the streams are just copied into a new container. It only slows down if a stream needs re-encoding (e.g. DTS\/TrueHD audio to AAC), which takes real processing time.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Can I convert MKV to MP4 without re-encoding?<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Yes \u2014 that\u2019s the remux path<\/strong>, and it\u2019s the default behavior whenever the MKV\u2019s codecs are MP4-compatible (H.264\/H.265 + AAC). The streams are copied as-is, the file size barely changes, and there\u2019s zero quality loss. Re-encoding is only triggered by codecs MP4 doesn\u2019t support.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sources<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Last verified 2026-06-25.<\/em><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.matroska.org\/technical\/basics.html\">Matroska \u2014 Basics (technical spec)<\/a> \u2014 Matroska is an EBML-based container, \u201cmodularly expandable,\u201d with \u201cselectable subtitle\/audio\/video streams\u201d; multiple track support.<\/li><li><a href=\"https:\/\/www.matroska.org\/technical\/codec_specs.html\">Matroska \u2014 Codec specifications<\/a> \u2014 codec IDs MKV carries: <code>A_DTS<\/code>, <code>A_AC3<\/code>, FLAC, ALAC, plus subtitle IDs <code>S_TEXT\/ASS<\/code>, <code>S_HDMV\/PGS<\/code>, <code>S_VOBSUB<\/code> (formats MP4 lacks an equivalent for).<\/li><li><a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/Media\/Guides\/Formats\/Containers\">MDN \u2014 Media container formats<\/a> \u2014 MP4 is derived from the ISO base media \/ QuickTime file format, \u201csupports several of the most-used codecs,\u201d and is \u201cbroadly supported\u201d; codec table (AVC\/AV1\/VP9 video, AAC\/FLAC\/MP3\/Opus audio).<\/li><li><a href=\"https:\/\/caniuse.com\/mpeg4\">caniuse \u2014 MPEG-4 \/ H.264 video format<\/a> \u2014 MP4\/H.264 at ~96.65% global browser support; near-universal.<\/li><li><a href=\"https:\/\/support.apple.com\/en-us\/102644\">Apple Support \u2014 If a media file doesn\u2019t open or play on your Apple device<\/a> \u2014 <code>.mkv<\/code> listed among formats Apple devices don\u2019t play natively and that typically need conversion.<\/li><li><a href=\"https:\/\/www.iso.org\/standard\/38538.html\">ISO\/IEC 14496-14:2003 \u2014 MP4 file format<\/a> \u2014 the MP4 container standard, derived from MPEG-4 Part 12 (ISO base media file format).<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Convert MKV to MP4 with no quality loss. When it&#8217;s a fast lossless remux, when audio\/subtitles force a re-encode, and how to do it free.<\/p>\n","protected":false},"author":3,"featured_media":1231,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,14],"tags":[],"class_list":["post-961","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-how-to-guides","category-tools"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Convert MKV to MP4 (Keep Quality, Add Compatibility)<\/title>\n<meta name=\"description\" content=\"Convert MKV to MP4 with no quality loss. When it&#039;s a fast lossless remux, when audio\/subtitles force a re-encode, and how to do it free.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Convert MKV to MP4 (Keep Quality, Add Compatibility)\" \/>\n<meta property=\"og:description\" content=\"Convert MKV to MP4 with no quality loss. When it&#039;s a fast lossless remux, when audio\/subtitles force a re-encode, and how to do it free.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4\" \/>\n<meta property=\"og:site_name\" content=\"XConvert Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/xconvertcom\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-13T13:13:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.xconvert.com\/blog\/wp-content\/uploads\/2026\/06\/featured-182.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1600\" \/>\n\t<meta property=\"og:image:height\" content=\"840\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"James\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@xconvert_com\" \/>\n<meta name=\"twitter:site\" content=\"@xconvert_com\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"James\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"10 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/convert-mkv-to-mp4#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/convert-mkv-to-mp4\"},\"author\":{\"name\":\"James\",\"@id\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/#\\\/schema\\\/person\\\/3434db135e6a7f239ba8414244df9845\"},\"headline\":\"How to Convert MKV to MP4 (Keep Quality, Add Compatibility)\",\"datePublished\":\"2026-07-13T13:13:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/convert-mkv-to-mp4\"},\"wordCount\":2042,\"image\":{\"@id\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/convert-mkv-to-mp4#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/featured-182.png\",\"articleSection\":[\"How To Guides\",\"Tools\"],\"inLanguage\":\"en-CA\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/convert-mkv-to-mp4\",\"url\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/convert-mkv-to-mp4\",\"name\":\"How to Convert MKV to MP4 (Keep Quality, Add Compatibility)\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/convert-mkv-to-mp4#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/convert-mkv-to-mp4#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/featured-182.png\",\"datePublished\":\"2026-07-13T13:13:00+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/#\\\/schema\\\/person\\\/3434db135e6a7f239ba8414244df9845\"},\"description\":\"Convert MKV to MP4 with no quality loss. When it's a fast lossless remux, when audio\\\/subtitles force a re-encode, and how to do it free.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/convert-mkv-to-mp4#breadcrumb\"},\"inLanguage\":\"en-CA\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/convert-mkv-to-mp4\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-CA\",\"@id\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/convert-mkv-to-mp4#primaryimage\",\"url\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/featured-182.png\",\"contentUrl\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/featured-182.png\",\"width\":1600,\"height\":840,\"caption\":\"The xconvert MKV to MP4 Converter at \\\/convert-mkv-to-mp4 with the Upload button highlighted \u2014 add an MKV file to remux it into a universally-playable MP4.\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/convert-mkv-to-mp4#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.xconvert.com\\\/blog\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"How to Convert MKV to MP4 (Keep Quality, Add Compatibility)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/\",\"name\":\"XConvert Blog\",\"description\":\"Blog for XConvert file converter\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-CA\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/#\\\/schema\\\/person\\\/3434db135e6a7f239ba8414244df9845\",\"name\":\"James\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-CA\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/46be416a360dc6b95bffc4b116d86872c03f8d8e4c1047a3a08033742f03d04d?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/46be416a360dc6b95bffc4b116d86872c03f8d8e4c1047a3a08033742f03d04d?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/46be416a360dc6b95bffc4b116d86872c03f8d8e4c1047a3a08033742f03d04d?s=96&d=mm&r=g\",\"caption\":\"James\"},\"url\":\"https:\\\/\\\/www.xconvert.com\\\/blog\\\/author\\\/james\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"How to Convert MKV to MP4 (Keep Quality, Add Compatibility)","description":"Convert MKV to MP4 with no quality loss. When it's a fast lossless remux, when audio\/subtitles force a re-encode, and how to do it free.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4","og_locale":"en_US","og_type":"article","og_title":"How to Convert MKV to MP4 (Keep Quality, Add Compatibility)","og_description":"Convert MKV to MP4 with no quality loss. When it's a fast lossless remux, when audio\/subtitles force a re-encode, and how to do it free.","og_url":"https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4","og_site_name":"XConvert Blog","article_publisher":"https:\/\/www.facebook.com\/xconvertcom","article_published_time":"2026-07-13T13:13:00+00:00","og_image":[{"width":1600,"height":840,"url":"https:\/\/www.xconvert.com\/blog\/wp-content\/uploads\/2026\/06\/featured-182.png","type":"image\/png"}],"author":"James","twitter_card":"summary_large_image","twitter_creator":"@xconvert_com","twitter_site":"@xconvert_com","twitter_misc":{"Written by":"James","Est. reading time":"10 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4#article","isPartOf":{"@id":"https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4"},"author":{"name":"James","@id":"https:\/\/www.xconvert.com\/blog\/#\/schema\/person\/3434db135e6a7f239ba8414244df9845"},"headline":"How to Convert MKV to MP4 (Keep Quality, Add Compatibility)","datePublished":"2026-07-13T13:13:00+00:00","mainEntityOfPage":{"@id":"https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4"},"wordCount":2042,"image":{"@id":"https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4#primaryimage"},"thumbnailUrl":"https:\/\/www.xconvert.com\/blog\/wp-content\/uploads\/2026\/06\/featured-182.png","articleSection":["How To Guides","Tools"],"inLanguage":"en-CA"},{"@type":"WebPage","@id":"https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4","url":"https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4","name":"How to Convert MKV to MP4 (Keep Quality, Add Compatibility)","isPartOf":{"@id":"https:\/\/www.xconvert.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4#primaryimage"},"image":{"@id":"https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4#primaryimage"},"thumbnailUrl":"https:\/\/www.xconvert.com\/blog\/wp-content\/uploads\/2026\/06\/featured-182.png","datePublished":"2026-07-13T13:13:00+00:00","author":{"@id":"https:\/\/www.xconvert.com\/blog\/#\/schema\/person\/3434db135e6a7f239ba8414244df9845"},"description":"Convert MKV to MP4 with no quality loss. When it's a fast lossless remux, when audio\/subtitles force a re-encode, and how to do it free.","breadcrumb":{"@id":"https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4#breadcrumb"},"inLanguage":"en-CA","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4"]}]},{"@type":"ImageObject","inLanguage":"en-CA","@id":"https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4#primaryimage","url":"https:\/\/www.xconvert.com\/blog\/wp-content\/uploads\/2026\/06\/featured-182.png","contentUrl":"https:\/\/www.xconvert.com\/blog\/wp-content\/uploads\/2026\/06\/featured-182.png","width":1600,"height":840,"caption":"The xconvert MKV to MP4 Converter at \/convert-mkv-to-mp4 with the Upload button highlighted \u2014 add an MKV file to remux it into a universally-playable MP4."},{"@type":"BreadcrumbList","@id":"https:\/\/www.xconvert.com\/blog\/convert-mkv-to-mp4#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.xconvert.com\/blog"},{"@type":"ListItem","position":2,"name":"How to Convert MKV to MP4 (Keep Quality, Add Compatibility)"}]},{"@type":"WebSite","@id":"https:\/\/www.xconvert.com\/blog\/#website","url":"https:\/\/www.xconvert.com\/blog\/","name":"XConvert Blog","description":"Blog for XConvert file converter","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.xconvert.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-CA"},{"@type":"Person","@id":"https:\/\/www.xconvert.com\/blog\/#\/schema\/person\/3434db135e6a7f239ba8414244df9845","name":"James","image":{"@type":"ImageObject","inLanguage":"en-CA","@id":"https:\/\/secure.gravatar.com\/avatar\/46be416a360dc6b95bffc4b116d86872c03f8d8e4c1047a3a08033742f03d04d?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/46be416a360dc6b95bffc4b116d86872c03f8d8e4c1047a3a08033742f03d04d?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/46be416a360dc6b95bffc4b116d86872c03f8d8e4c1047a3a08033742f03d04d?s=96&d=mm&r=g","caption":"James"},"url":"https:\/\/www.xconvert.com\/blog\/author\/james"}]}},"_links":{"self":[{"href":"https:\/\/www.xconvert.com\/blog\/wp-json\/wp\/v2\/posts\/961","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xconvert.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xconvert.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xconvert.com\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xconvert.com\/blog\/wp-json\/wp\/v2\/comments?post=961"}],"version-history":[{"count":2,"href":"https:\/\/www.xconvert.com\/blog\/wp-json\/wp\/v2\/posts\/961\/revisions"}],"predecessor-version":[{"id":1230,"href":"https:\/\/www.xconvert.com\/blog\/wp-json\/wp\/v2\/posts\/961\/revisions\/1230"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xconvert.com\/blog\/wp-json\/wp\/v2\/media\/1231"}],"wp:attachment":[{"href":"https:\/\/www.xconvert.com\/blog\/wp-json\/wp\/v2\/media?parent=961"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xconvert.com\/blog\/wp-json\/wp\/v2\/categories?post=961"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xconvert.com\/blog\/wp-json\/wp\/v2\/tags?post=961"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}