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Best Mkv To Mp4 Free Apps

222+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated June 2026

Looking for free mkv to mp4 free apps? 20 of our 222+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Mkv To Mp4 Free

Media Converter - video to mp3#1

Media Converter - video to mp3 by 俊杰 阮

convert mp4,m4a, extract audio
Editor's Choice
🔧 Utilities
4.7😊(24K ratings)
FreeAdsIn-App Purchases
Media Converter - video to mp3 screenshot 1
Media Converter - video to mp3 screenshot 2
Media Converter - video to mp3 screenshot 3
Media Converter - video to mp3 screenshot 4
Media Converter - video to mp3 screenshot 5

This app is a versatile media converter that handles videos, audio, images, GIFs, and PDFs. It allows for format conversion, audio extraction, video compression, ringtone creation, and even basic video editing. It also includes a built-in media player and file management tools.

What We Love

  • 🚀 Fast and efficient conversion
  • 👍 Easy to use
  • 💡 Versatile file format support
  • 🚀 Excellent compression capabilities

Room to Improve

  • 🐛 Occasional crashes or conversion issues
  • 🔋 Battery drain during conversion
  • 🔍 Confusing UI in some areas
The Video Converter#3

The Video Converter by Float Tech, LLC

Convert to MP4, MOV, and MP3
Worth Considering
🔧 Utilities
4.5😞(9.7K ratings)
FreeIn-App Purchases
The Video Converter screenshot 1
The Video Converter screenshot 2
The Video Converter screenshot 3
The Video Converter screenshot 4
The Video Converter screenshot 5

Easily transform video and audio files into a wide range of formats like MP4, MOV, and MP3. Select your input, choose an output, and convert in seconds. Save, share, or view your converted files directly from the app.

What We Love

  • 👍 Easy to use
  • 🚀 Fast conversion
  • 💡 Variety of conversion options
  • 🔒 Secure file handling

Room to Improve

  • 🐛 Crashes and freezes
  • 🔒 Concerns about privacy and data handling
  • 💰 Paywall for basic features

More Mkv To Mp4 Free apps to explore

4
Video Player - All in One
Video Player - All in One
Video Player - All in One
HD, Movie, PiP, Play, Music
Free

Play all your video and audio files in any format, including 4K and HD. Organize your media with a library and folder browsing. Sync files from your computer and take screenshots during playback.

Supports all video formats (4K, HD, MKV, AVI, MOV, MP4)Supports all music and audio formatsMedia library and folder browsing
📷 Photo & Video
(7.3K)
free with in-app purchases
5
MP4Plus Video Converter mp3/4
MP4Plus Video Converter mp3/4
MP4Plus Video Converter mp3/4
Convert Video to mp4 mp3
Free

Easily convert video files into MP4 or MP3 formats directly on your iOS device. Supports a vast array of video file types for seamless conversion.

Convert video to MP4Convert video to MP3Supports numerous video formats
🔧 Utilities
(190)
free with in-app purchases
6
VICO - Video to MP3 Converter
VICO - Video to MP3 Converter
VICO - Video to MP3 Converter
Media Converter MP4 Video
Free

Easily convert video files to various formats like MP3, MP4, and AVI. This app offers quick conversions, supports local and cloud storage, and provides convenient sharing options. It's designed for users who need to change video file types for accessibility or to save space.

Video to MP3 conversionMultiple output formats (MP4, AVI, M4A, etc.)Quick conversion times (15-20 seconds)
🔧 Utilities
(4)
free with in-app purchases
7
VLC media player
VLC media player
VLC media player
by VideoLAN
Free

Play virtually any video or audio file directly without conversion. Stream media from cloud services, network servers, or the web. Offers advanced subtitle support and playback controls.

Plays all video and audio formatsNo file conversion neededCloud and network streaming
📷 Photo & Video
(5.5K)
free
8
Video Converter − MP4 to Mp3
Video Converter − MP4 to Mp3
Video Converter − MP4 to Mp3
Convert Video to MP3, MOV, MKV
Free
🔧 Utilities
(0)
9
KMPlayer
KMPlayer
KMPlayer
Perfect Video Player
Free

A versatile media player that handles all high-resolution video, music, and subtitle formats. Offers advanced playback controls, color adjustments, and subtitle customization.

Plays all video and music formatsSupports numerous subtitle formatsBookmark playback sections
🎬 Entertainment
(3.2K)
free
10
Video Converter - Convert MKV
Video Converter - Convert MKV
Video Converter - Convert MKV
Convert MKV/WMV/MOV/AVI to MP4
Free

Easily and quickly convert video or audio files between various formats. Supports batch processing and high-quality video, with a focus on user privacy and a dark mode option.

Unlimited usage and savesConvert MKV/WMV/MOV/AVI to MP4Batch and fast processing
🔧 Utilities
(3)
free
11
MP3 Converter: Video to Audio
MP3 Converter: Video to Audio
MP3 Converter: Video to Audio
Ringtone Maker, Extract Music
Free

Easily convert videos from various formats into audio files. Extract music from your favorite clips and create custom ringtones. Supports numerous output formats and offers convenient sharing options.

Convert videos to audioExtract music from videosCreate ringtones
🎵 Music
(7.1K)
free with in-app purchases
12
Video Files Converter: MP4,MP3
Video Files Converter: MP4,MP3
Video Files Converter: MP4,MP3
MP4,MOV,MKV,etc to MP3,GIF,etc
Free

Easily convert and edit video and audio files directly on your device. Supports a wide range of formats and offers powerful editing tools like volume boosting and trimming. Create GIFs from videos for social media sharing.

Video and audio conversionExtract audio from videoBoost volume up to 400%
🔧 Utilities
(89)
free with in-app purchases
13
Video Converter and Compressor
Video Converter and Compressor
Video Converter and Compressor
Any Format Batch 4K Merger
Free

This app converts and compresses video and audio files into numerous formats. It also allows merging video and audio clips, changing resolution, frame rate, and bitrates. Files can be imported from various sources, including cloud services and local devices.

Convert video to any formatCompress video filesMerge video and audio clips
📷 Photo & Video
(2.1K)
free with in-app purchases
14
MP4 Maker - Convert to MP4
MP4 Maker - Convert to MP4
MP4 Maker - Convert to MP4
Convert videos to MP4 format
Free

Easily convert video files to MP4 format directly on your device. This app prioritizes your privacy by processing all conversions locally, ensuring your files never leave your phone. Customize quality settings to balance file size and image resolution.

Convert videos to MP4Local device processingExport converted files
📊 Productivity
(2.2K)
free with in-app purchases
15
MP4 Converter: Video to MP4
MP4 Converter: Video to MP4
MP4 Converter: Video to MP4
RMVB/WebM/MOV/AVI to MP4
Free

Easily convert, compress, edit, and export videos in virtually any format. This tool supports batch processing, audio extraction, and hardware-accelerated encoding for efficient video management. It offers a clean interface with no learning curve.

Convert any video formatBatch import and conversionVideo compression and editing
🔧 Utilities
(29)
freemium
16
Media Converter - MP4 to MP3
Media Converter - MP4 to MP3
Media Converter - MP4 to MP3
Convert & Edit Video to Audio
Free

Extract, edit, and enhance audio from your videos with a user-friendly toolkit. Offers advanced features like noise reduction and speed adjustment, with regular updates and new content for subscribers.

High-quality audio extractionPrecision audio editingChange playback speed without pitch loss
🎵 Music
(130)
freemium
17
Infuse
Infuse
Infuse
An elegant video player
Free

A versatile video player that supports a vast array of formats and streaming options. Enjoy smooth playback, HDR, and Dolby audio, with integrated subtitle downloads and Trakt sync. Stream content from various devices and cloud services without conversion.

Plays virtually any video formatStream from Mac, PC, NAS, and cloud servicesSupports HDR, Dolby Vision, and Dolby/DTS audio
🎬 Entertainment
(28K)
free with in-app purchases
18
mPlayer: play mkv, ts, wmv...
mPlayer: play mkv, ts, wmv...
mPlayer: play mkv, ts, wmv...
Play any media file format
Free

This advanced media player supports a vast array of video and audio codecs and file formats, eliminating the need for conversion. It offers seamless playback from cloud storage and network shares, with on-the-fly subtitle downloading and WiFi file transfer capabilities.

Plays any video format without conversionHardware acceleration engineSupports MKV, TS, MPG, MP4, MOV, and more
📷 Photo & Video
(81)
free with in-app purchases
19
Convert MOV to MP4
Convert MOV to MP4
Convert MOV to MP4
Video converter・conversion
Free

Easily convert MOV video files to MP4 format with this app. It offers fast, high-quality conversions, supports batch processing, and allows saving directly to your Photos app or sharing with others. Enjoy offline conversion capabilities for ultimate convenience.

Fast MOV to MP4 conversionBatch conversion of multiple filesSave converted files to Photos app
📷 Photo & Video
(11)
free with in-app purchases
20
MP3Converter - Video & Audio
MP3Converter - Video & Audio
MP3Converter - Video & Audio
Support video and audio
Free

Easily convert video files to MP3 audio or other video formats. Extract high-quality audio, create ringtones, and customize output settings. Works offline and prioritizes user privacy.

Convert video to MP3Convert video to videoExtract audio
🔧 Utilities
(1.4K)
free with in-app purchases