MP4 Editor Online

Edit MP4 files quickly and easily, in your web browser
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Use a simple but powerful MP4 editor

Edit MP4 videos from the comfort of your own web browser. Get rid of unwanted parts from your videos, trim, crop or resize them easily, all in a couple of clicks. Choose from more than a dozen free transitions, add text, customizable motion titles and lower thirds just by dragging and dropping. 

Our online video editor runs entirely in your web browser, meaning you don’t need to download or install anything to your computer in order to use it. This allows you to edit MP4 videos on Windows, Mac or ChromeOS.

MP4 Editor Online

Edit MP4 videos online 

Cut, crop and trim MP4 videos on any computer! Flixier runs in your web browser so you don’t need to download or install anything in order to use it. All the heavy video processing is done on cloud servers, so you can enjoy a smooth editing experience regardless of your system specifications. If you create an account, you can even save your projects in the cloud and access them from any computer.

Save time with a simple MP4 editor 

Click Get Started to open Flixier in your browser, drag and drop your videos over and start cutting and trimming with our intuitive timeline. We developed Flixier from the ground up to be intuitive and easy to use, so you can start editing right away even if you don’t have any previous experience.

Add text and transitions with an online MP4 editor 

Choose from dozens of different free transitions and add text to your videos in just a few clicks. Take advantage of a library filled with free, professionally animated titles and motion graphics that you can customize fully. Drag them over to your video and edit them until they fit in perfectly in order to give your videos a more professional look.

Make your MP4 videos more accessible 

Create subtitles for your MP4 videos to make them more accessible. You can manually create and synchronize subtitles with Flixier or right click your video and select Generate Subtitle to automatically create synchronized subtitles in over 30 languages. Hardcode the generated subtitles manually or save them to your computer separately in a variety of formats.

How do I edit an MP4 file?

How do I edit an MP4 file?

Click on Get Started to open Flixier in your web browser. You can drag and drop videos over from your computer, or you can bring them over from cloud storage services like Google Drive or Dropbox. You can also copy and paste YouTube links to import videos that way, or connect to your Twitch account to import clips from there.


Drag your video down to the timeline. Use the Cut button to get rid of unwanted parts, drag on the ends of a clip on the timeline to trim its duration and use the Object Inspector menu on the right side to add filters, crop a video or perform color corrections. 

Add transitions, text and animated titles by dragging them over from the tabs on the left side of the screen.

Export and Download

When you’re done editing your MP4, click on the Export button in the top right corner of the screen. Flixier will take a couple of minutes to process your video and then you’ll be able to save it to your computer or publish it directly to YouTube, Facebook or Vimeo.

Why use Flixier to edit MP4 videos:

Save money with a free MP4 editor 

Flixier is entirely free to try. You don’t even need to create an account in order to use it. Just click on Get Started and start editing! All of our core editing features are available to free users, so you can experience the flexibility and convenience of our online video editor without paying anything.

Edit more than MP4 videos 

Edit any type of video with Flixier. Our online editor is compatible with all the popular video formats including MKV, AVI and MOV. Any video you upload to Flixier automatically gets converted to MP4 to save space and improve compatibility, so you don’t need to worry about converting your files manually.

Apply filters to enhance your MP4 videos 

Apply a filter to your MP4 video in one click to make it more moody and atmospheric. Make your videos brighter, sharper or livelier with easy-to-use Brightness, Sharpness and Vibrance sliders. More advanced users can take advantage of our simple keyframe system to create effects such as panning or zoom in and out of their videos whenever they want.

Edit MP4 videos for YouTube and TikTok 

Give your videos a title and description, choose a thumbnail and publish them to your YouTube channel straight from Flixier. Convert videos from landscape to portrait and share them on TikTok, Instagram or turn them into YouTube shorts.


I’ve been looking for a solution like Flixier for years. Now that my virtual team and I can edit projects together on the cloud with Flixier, it tripled my company’s video output! Super easy to use and unbelievably quick exports.

Steve Mastroianni -

My main criteria for an editor was that the interface is familiar and most importantly that the renders were in the cloud and super fast. Flixier more than delivered in both. I've now been using it daily to edit Facebook videos for my 1M follower page.

Evgeni Kogan

I'm so relieved I found Flixier. I have a YouTube channel with over 700k subscribers and Flixier allows me to collaborate seamlessly with my team, they can work from any device at any time plus, renders are cloud powered and super super fast on any computer.

Anja Winter, Owner, LearnGermanWithAnja

Frequently asked questions.

Frequently Asked Questions

If you have any further questions, Get in touch with our friendly team
If you have any further questions, Get in touch with our friendly team

Can I edit MP4 video online?

Can I edit MP4 video online?

You can edit MP4 videos online with Flixier. Our MP4 video editor runs in your web browser and doesn’t require any downloads or installs. Click on Get Started to open it, import your videos and edit them in seconds from any computer.

Can I edit MP4 videos for free using Flixier?

Can I edit MP4 videos for free using Flixier?

Editing MP4 videos with Flixier is free. You don’t need to pay anything in order to edit or create videos with Flixier. Just upload, edit and export your videos!

Can I edit an MP4 video for YouTube?

Can I edit an MP4 video for YouTube?

You can edit MP4 videos for YouTube using Flixier. Add animated titles and transitions, insert Like, Share and Subscribe animations, create intros and record your webcam and microphone. You can even generate subtitles and text-to-speech voice overs for your videos. When you’re done, you can even publish your video directly to your YouTube channel from our app.

Can I edit an MP4 video for YouTube?

Can I edit an MP4 video for YouTube?

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