Online video and sound editor

Edit and improve the audio in your videos
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Edit the audio in your videos straight from your web browser

Want to make your online videos sound as good as they look? You’re in the right place! With Flixier, you can improve the sound quality of your videos straight from your web browser. No downloads or installs required! Just upload your video to Flixier and then you’re free to edit the audio however you see fit. You can use our audio enhancer tool to get rid of background noise and fix the levels, cut out unwanted parts, or add music and sound effects, all in a couple of clicks. 

Online video and sound editor

Save time with an online sound editor 

Editing your audio is faster than ever with Flixier! Our online audio editor uses powerful cloud servers to save time and process your audio in minutes. No need to worry about the speed of your computer. With our servers doing all the heavy lifting, your videos and audio files will be processed in a couple of minutes whether you’re using the latest macbook or an old budget laptop. 

Edit video and audio regardless of format

You don’t need to worry about file compatibility when you use Flixier! Our editor is compatible with all the popular file types, so you can just bring your files over and start editing them however you see fit. Flixier converts all audio files to .MP3 and all video files to .MP4 when you upload them to make sure that your projects will always be compatible with online platforms.

Cut and trim audio easily

Our online sound editor makes it easy to cut and trim tracks, even if you don’t have any editing experience. Just drag them onto the timeline at the bottom of the screen, move the playhead to the right spot in the track and press the Cut button to make a cut. If you just want to trim the start and end of a track, all you have to do is drag on the ends of your audio object in the timeline. 

Enhance audio with just a few clicks

Flixier features a very powerful audio enhancer that allows you to improve the audio in your videos in just a couple of clicks. Just select the improvement you need and the type of content you’re making and Flixier will handle the rest. You can use it to remove background noise from vlogs, fix the volume levels in a podcast, make speech easier to understand and much more! 

How do I edit audio while video editing?

How do I edit audio while video editing?

Click on Get Started to open Flixier in your web browser. Then, drag any video and audio files that you wish to edit over to the import menu that pops up on screen. You can also bring files over from any of the online cloud storage services listed there, as well as from YouTube, SoundCloud and TikTok (using the Link option).


Drag your files down to the timeline at the bottom of the screen to edit them. You can trim audio and video files by dragging on their ends in the timeline, and make cuts by dragging the playhead to the desired position and clicking the Cut button. If you want to cut out parts of the audio in your video without affecting the visuals, you can right click a video object and choose “Detach Audio”. The audio will be added to a new track and you’ll be able to edit it independently. 

To enhance audio, select a video or audio clip on the timeline and click on the Enhance Audio option in the right-side menu. Select the type of enhancement you want Flixier to apply and then choose the type of content you’re editing from the dropdown list. Our tool will take a couple of minutes to process your file and then apply the desired enhancements.

Download and publish

When you’re happy with the audio in your video, click the Export button in the top right corner of the screen. Choose your format from the drop-down list and then click on Export and Download. Flixier will process your video and save it to your computer in a few minutes.

Why use Flixier to edit the audio in your video?

An audio editing app with stock music and sound effects

Improve the way your videos sound by adding music and sound effects! Flixier offers a built in library filled with dozens of stock audio assets, so you can just search for something that fits your video and drag it over to the timeline to add it in without having to worry about copyright issues. 

Record or generate voice overs using our sound editor

You can use Flixier to record your computer microphone and create voice overs for your videos. You can then edit these just like any other clips and enhance them to make them sound more professional. If you don’t want to use your own voice, you can take advantage of our AI-powered text-to-speech tool to generate natural voice overs easily.

Extract audio from existing clips easily

Want to get the audio from a video and publish it separately or use it for another project? We’ve got you covered! You can use Flixier as an audio extractor by uploading your clip to it and exporting it as an MP3. You can even edit the audio in Flixier before saving it to make sure that it’s up to your standards of quality.

Enhance your videos

Use Flixier’s video enhancer to make your video look as good as it sounds! You can use the simple brightness, vibrance and saturation sliders to make your videos brighter and livelier. You can add sharpness to save a blurry video and use filters and color correction to fix bad lighting or capture the mood you’re going for in your clips.


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

Why is audio editing important?

Why is audio editing important?

Audio editing is important because in a typical YouTube video, most of the information is going to be delivered by speaking. If your viewers can’t make out what you’re saying, or if your audio simply sounds bad and is difficult to listen to, they’re going to tune out very quickly.

How can I improve the quality of audio in video editing?

How can I improve the quality of audio in video editing?

Video editors like Flixier give you all the tools you need to improve the quality of the audio in your clips. You can apply equalizers, fade audio in and out, cut out unwanted parts and use our simple enhancer tool to remove background noise and fix audio volume levels.

What audio format is best for video editing?

What audio format is best for video editing?

It’s a good idea to record your sound in a lossless audio format such as .WAV before editing it. With an online Flixier, this isn’t a huge concern however, since Flixier is compatible with all audio formats and will automatically convert everything to MP3 to make it easier to edit and play back in the web browser.

What is the optimal audio level while editing video?

What audio format is best for video editing?

When editing your videos, you should make sure that your audio levels hover around -14 to -6 dB. This will ensure that your audio is loud enough that people don’t have to mess with their device volume to hear you speak.

How do I optimize audio quality?

What audio format is best for video editing?

You can optimize the quality of the audio in your videos using the audio enhancement features built into online video and audio editing tools like Flixier. 

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