convert mp4 to mp4


Convert any video file to MP4

Convert any  video (MP4, AVI, 3GP...) to MP4 without installing any software! CloudConvert does this conversion for you with highest quality. The following options () are available:
Trim: Cut the resulting MP4 at the beginning and / or the end. The start / end timestamp must be formated as HH:MM:SS.
Video Codec: The default codec for MP4 files is H264. If you do not want to reencode the file, you can select "copy" here. This copies the video stream from the input file without any loss in quality.
Video Quality / Bitrate: Select a Constant Rate Factor (CRF) which influences the video stream bitrate. The default value (=23) is a good starting point and should result in nearly visually lossless quality. The bitrate will be automatically chosen to reach this quality level. Instead of this auto bitrate setting you can manually set a certain bitrate here.
Video Aspect Ratio: You can adjust the video aspect ratio here to make it fit to your TV screen (e.g. 3:4 / 16:9).
Video Resolution: Change the video resolution to 420p, 720p, 1080p or any other resolution.
Video FPS: It is possible to lower the frames per seconds with this setting.
Audio Codec: The default codec for MP4 files is AAC. If you do not want to reencode audio stream, you can select "copy" here. This copies the audio stream from the input file without any loss in quality.
Audio Bitrate: Set the target bitrate for the audio stream. 192k AAC should be pretty good quality.
Audio Channels: If you want to get mono instead of stereo output, you can set it here.
Audio Frequency: The sample rate for the audio stream. Normally this is 44100 Hz.
Audio Normalization: If your input audio is too quiet (or too loud) you can boost the volume here.
Subtitles: Add subtitles to your videos using SRT files.
Faststart: Move the index (moov atom) to the beginning of the file. This option is needed, if the output file is used for HTTP streaming.

MPEG-4 Part 14 mp4

MP4, also known as MPEG4 is mainly a video format that is used to store video and audio data. Also it can store images and subtitles. Normally it is used to share videos over internet. MP4 can embed any data over private streams. Streaming information is included in MP4 using a distinct hint.

218 formats supported

CloudConvert supports the conversion between more than 200 different audio, video, document, ebook, archive, image, spreadsheet and presentation formats. Check the supported formats for more details.

file conversion in the cloud

There is no need to install any software on your computer! Upload your files to CloudConvert and we will do the job for you. Don't worry, your files are safe and only you can access them. They will be deleted again as soon as your conversion is finished.

advanced features

Most conversion types support advanced options, for example setting the codecs of audio/video files. Also, we support batch converting and folder monitoring!

powerful API

The CloudConvert API offers the full functionality of CloudConvert and makes it possible to use the conversion services in your own applications.


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