Q:"Is there a program I can use to take an existing .mp4 file, trim start and end time, and overwrite the file without re-encoding it to maintain the quality?" - Bryce from Adobe Forum

Like Bryce, most of you will wonder whether it's possible to cut MP4 without re-encoding, especially when there are lots of large MP4 videos to be trimmed in small size. As is often the case, the output quality is what you should care about most in the process of cutting. Also, you may be dazzled by so many different MP4 cutters in present market. To help you, we will mainly take Joyoshare Video Cutter as an example in this post. It can have a good performance in cutting with no re-encoding video to output in high quality.

Part 1. Learn What Joyoshare Media Cutter Can Do

Joyoshare Video Cutter is a tool that provides you with a comprehensive solution to cut, trim, rotate, crop and edit videos effortlessly. By using it, you can either cut MP4 at up to 60X faster speed without re-encoding or edit MP4 in customized way as you want.

Besides, Joyoshare Video Cutter also develops with built-in video player and editor. You can conveniently preview the imported video to trim needless sections, adjust aspect ratio, add watermark, apply audio or video effect, insert matchable subtitle, etc. There is also no need for you to worry about its compatibility as it's downloadable for both Windows and Mac.

Reasons Why to Choose Joyoshare Video Cutter:

Cut and trim MP4 videos in lossless quality

Convert MP4 to other video format with ease

Extract audio from MP4 at fast speed

Specify resolution, bit rate, codec, etc. for output format

Part 2. Trim MP4 without Re-encoding on Joyoshare Media Cutter

Step 1 Launch Joyoshare Media Cutter to add MP4 video

Get the installed Joyoshare Media Cutter run on your computer. Next you can click its "Open" button to import one MP4 file from local folder. Or quickly drag and drop the selected video to the program's main interface.
main screen

Step 2 Select video segment

Joyoshare Media Cutter will play the added MP4 video automatically for you to preview. Now confirm the cutting points for both beginning and end. You can move the yellow handles by yourself or type specific temporal intervals in "Start Time" and "End Time". Else, you can use "[" and "]" buttons to cut where the playhead locates.
timeline

Step 3 Choose lossless mode to cut

After ensuring which segment you need, you can press the "Format" panel to choose "High-Speed" mode. It helps to trim MP4 without re-encoding and the entire process is fast with no quality loss.
high speed mode

Step 4 Start to cut MP4 in lossless quality

Just go to click the "Start" option at the right bottom to finish cutting MP4. You can then tap on "Open The Output Folder" button to check the output video. Take it easy. The non-re-encoding mode will keep 100% original quality for your MP4 file.
start save video

Conclusion & Suggestion

Now you must be clear about how simple it is to cut MP4 without re-encoding under the help of Joyoshare Media Cutter. Actually, with the exception of MP4, it also supports other popular formats, like M4V, MKV, MOV, AVI, WMV, ASF, SWF, FLV, F4V, 4K video, HD MPG, etc. You are suggested to learn more details about its key functions later. Surely, you can further get to know more free MP4 cutters if you still would like to consider.
author

July 29, 2019 4:06 PM

Posted by Josh White to Video Cutting

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