An Easy Guide on How to Convert FLV to MP4 with HandBrake

Author: Carina
Publish date
Updated on Nov 20, 2025
FLV Videos to MP4
  • Get Get the best free video converter to convert FLV to MP4 on Windows
  • 1️⃣ Import FLV videos;
  • 2️⃣ Select MP4 as output format;
  • 3️⃣ Start the conversion at once.
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Convert FLV to MP4 with HandBrake
An Easier & Free Way to Convert FLV to MP4
Sum-up
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HandBrake is a free and open-source digital video transcoder. It has a wide format support, allowing users to rip and convert DVDs and digital videos to MP4/M4V, MKV, and WebM. Despite the fact that it only has four output formats, it offers a plethora of profiles that may assist you in transcoding video to your preferred type.

It's easy to get started with HandBrake, and this guide will show you how to use it to convert FLV to MP4. In addition, you'll discover another free tool for easier file conversion in the second part of this article. So keep reading!

Part 1: How to Convert FLV to MP4 in HandBrake

If you haven’t downloaded HandBrake, go to the official website of HandBrake to download and install the latest version on your device.

Official Website: https://handbrake.fr/

Now, launch HandBrake on your desktop and follow the guide below to start HandBrake FLV to MP4 conversion.

HandBrake Conversion
HandBrake Conversion

Step 1: In the “Source Selection” tab, click “File” or “Folder” (Batch Scan) to choose the video you want to encode. Or you can directly drop the source files into the program. (If you don’t see the “Source Selection” tab, then click “Open Source” to bring it up.)

Step 2: Navigate to “Summary” > “Format” to choose MP4 as the output format. You can also choose different presets in the “Preset” drop-down list above the “Summary” tab.

Step 3: (Optional) Change the video encoder, frame rate, and quality under the “Video” tab; rotate and crop videos under the “Dimensions” tab. Other settings like audio codecs, filters, etc. can also be changed.

Step 4: Press the “Browse” button at the bottom right corner to specify an output path and rename the video.

Step 5: Click the green “Start Encode” button to start the HandBrake FLV to MP4 conversion.

🌟 Also Read: HandBrake Resize Video | HandBrake Settings for DVD | HandBrake DVD to MP4

Convert FLV to MP4 HandBrake
Convert FLV to MP4 HandBrake

Part 2: An Easier & Free Way to Convert FLV to MP4 on Windows

While HandBrake provides a way to convert FLV to MP4, you might want to try another free option that offers even more useful features.

The tool I recommend is WonderFox Free HD Video Converter Factory. It’s a free but professional video converter that supports MP4, AVI, MPEG4, H.264, H.265, and 500+ device and platform presets. Like HandBrake, it handles a wide range of formats, so converting FLV to MP4 is no problem at all. But it also goes further. The built-in editing tools, such as trimming, cropping, rotating, and merging, let you adjust your videos with ease. And unlike HandBrake, it also supports audio conversion. If you ever need to extract videos or audio from online sites, this software can do that too, completely free.

Below is a quick tutorial on how to use Free HD Video Converter Factory to convert FLV to MP4. DownloadDownload the freeware and give it a try!

Best Free FLV to MP4 Converter
Best Free FLV to MP4 Converter

WonderFox Free HD Video Converter Factory is an easy and efficient way to convert FLV to MP4 with flexible settings. It’s fast, free, has no file or length limits, and delivers good output quality. Give it a try!

Free download Download for Free
Free download Download for Free

Step 1: Launch Free HD Video Converter Factory and enter the “Converter” module. Click “+ Add Files” to import your FLV videos.

Import FLV Videos
Import FLV Videos

Step 2: Click the right-side format image to choose "MP4" under the “Video” tab.

💡 You can go to the “Parameter settings” window to change the video resolution, bitrate, frame rate, and other video & audio settings if needed.

Choose Output Format
Choose Output Format

Step 3: Click the ▼ button to specify an output path. Finally, press “Run” to start the conversion.

It will export files one by one. Once the conversion is finished, a window will pop up and prompt you to check the final files.

Export MP4 Videos
Export MP4 Videos

Sum-up

That’s the full process for converting FLV to MP4 with HandBrake, along with its best free alternative. Both tools are easy to use, so you can choose the one you prefer and start converting right away.

Thanks for reading, and have a great day!

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