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Sync Video and Audio Online

Sync your audio and video content without breaking a sweat or a CPU-burning software

Sync Audio to Video Now
Sync Video and Audio Online

Top Solution to Audio & Video Out-of-Sync Issues

100% Online

100% Online

FlexClip makes it possible for anyone to match audio and video right on browsers. No need to rely on fancy software like Adobe Premiere Pro, Audacity.

Easy Operation

Easy Operation

You can sync your audio to video manually by dragging and dropping, thanks to FlexClip’s easy and simple timeline-based interface.

High Quality

High Quality

While fixing audio and video out-of-sync issues, FlexClip does its best to maintain the audio and video quality. Maximally, FlexClip downloads 4K videos with crystal-clear audio.

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Multiple Options to Sync Audio and Video

There are many reasons why audio and video fail to sync. To name a few, unexpected silences, asynchronous recording, or poor production. No matter what the situation is, FlexClip is the perfect solution. It helps extract audio from video, trim and split audio, add fade effects, change audio speed. Feel free to use these tools all!

Sync Audio and Video
Multiple Options to Sync Audio and Video

Instant Preview

Not sure if the audio is perfectly synced with the video? Hit the play button and make previews for unlimited times until the dialogue, sound effects, and background music are all in perfect harmony with the visuals.

Sync Audio and Video
Instant Preview

Bring Your Video Into The Next Level

Besides syncing your video to your audio, FlexClip has all tools you need to polish your video and audio clips like adding subtitles, remove background noise.
Instead, browse through the stock library of millions of high-quality background songs, sound effects and add them to your video for an enhanced atmosphere!

Sync Audio and Video
Bring Your Video Into The Next Level

How to Sync Audio to Video with FlexClip

  1. 1

    Extract Audio from Video

    Drag and drop your video to FlexClip’s timeline. Right-click it, select Detach Audio.

  2. 2

    Make Edits on the Audio

    Drag the audio file so that it perfectly syncs with the video, or make edits like trimming, adjusting audio speed, adding fade effects.

  3. 3

    Export & Share

    Download the video to a computer desktop, share via a short link, save to cloud services, or post it to social media platforms.

How to Sync Audio to Video with FlexClip

Frequently Asked Questions

What causes audio and video to be out of sync?

Audio and video can be out of sync due to these factors. 1)Frame rate mismatch 2)Hardware limitations 3)File conversion issues 4)Editing errors 5)post-production effects 6)Software bugs. No matter which circumstance you are in, FlexClip helps. Feel safe to give it a try!

Can I sync audio and video automatically?

Lots of advanced tools like Adobe Premiere Pro have automatic synchronization features. They use audio waveforms or timecodes to align the audio and video tracks with minimal manual intervention. However, it may require a nice computer and editing skills.

Can VLC be used to sync audio and video?

Yes, VLC Media Player can be used to sync audio and video during playback. Launch VLC, go to Tools > Track Synchronization, enter a value for the audio track synchronization and save the changes. In this way, you can enjoy a video without any audio delay problems. However, the changes won’t be saved when you quit VLC.

Can different formats cause sync issues?

Yes, converting files between different formats or compressing video files can introduce synchronization problems. Video editors should always check sync after the compressing or converting process.

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