How to Convert FLV to MP4 Easily | Best FLV to MP4 Converter for Anime

This guide explains the FLV and MP4 video formats, key differences of FLV and MP4, and the best way to convert FLV to MP4. Featuring UniFab Video Converter, the top choice for converting FLV anime and other videos quickly and losslessly.
flv to mp4

When it comes to video formats, FLV and MP4 are both popular, especially for online videos and flv anime content. However, FLV files can be difficult to play on modern devices due to limited support. That's why many users look for an easy way to convert FLV to MP4 — a format universally supported. 

In this article, you will learn what FLV and MP4 are, their differences, and how to convert flv anime or other FLV videos into high-quality MP4 files smoothly using the best flv to mp4 converter.

What's the FLV Video Format?

FLV is an acronym for Flash Video, a popular format in the past, especially for streaming and anime FLV files. It uses older codecs and was widely used by Adobe Flash Player before its end-of-life. Unlike MP4, FLV files can be large and sometimes hard to play on modern devices without conversion.

FLV Video Format.png
The FLV format was created to deliver synchronized audio and video files, an Adobe Flash player, and streaming videos online. Adobe Systems made the FLV file in the 2000s. This video format supports older codecs like On2 VP6, Sorenson Spark (video codecs), and MP3 for audio files. 
Flash videos are mainly used on the Internet and by media players. For example, YouTube Player is an old software or system that is still used because of its high-quality video content on the Internet. 
Adobe Flash player can run all data types, including video files, audio, streaming videos, and text. These FLV videos can be opened in other media players, such as VLC on PC, PlayerXtreme, and Adobe Flash Player, for only subscriptions.

What is the MP4 Video Format?

MP4 is the most popular video container format today. It supports high-quality video, compression, and multiple audio & subtitle streams. It is compatible with all devices, including smartphones, tablets, and desktop players, unlike FLV files. This compatibility is why many users prefer to convert FLV to MP4, especially for flv anime videos.

MP4 Video Format.png
The first version of MP4 was released in 2001. MP4 is a multimedia file format that stores Flash video, video audio, and streaming videos or subtitles. It provides high-rate compression and high video quality but is dissipative. That is why it is widely used on the Internet for streaming videos.
MP4 is a popular compressed format as it requires less storage space. MP4 is a universal format that supports all media players and iOS devices. It also stores different types of data in MP4 format whenever they are not encoded in the MP4 format code.

Difference Between FLV and MP4 Format

flv to mp4 converter

You have an idea about the basic information of FLV and MP4. The following detailed differences between FLV and MP4 will be easy for you to understand. In this part, we have compared FLV and MP4. See the differences between FLV and MP4 format.

Video Parameters

FLV

MP4

DeveloperAdobe SystemMPEG
File Extensionflv.mp4.
File SizeCommonly, it provides large file sizes because of less compressionBecause of compression, its size is small.
QualityFLV video format provides the best video quality.Good quality, but degrades significantly when compressed.
Editing & ManipulationAs it is an old software, it is limited to editing toolsUsed by different video editing tools.
Special FeaturesIt allows people to play back the video over the internet with a progressive download.It is widely used for flash video or audio file formats.
Audio & Video CodecsIt supports older codecs like On2 VP6, Sorenson Spark (video codecs), and MP3 for audio filesSupported codecs are H.265/HEVC, Theora, H264, VP8, VP9, and AV1.
Compatible DevicesIn most modern browsers and mobile devices, FLV files can no longer be played natively because mobile devices do not support it.Compatible with ios devices, browsers, and media players
SecurityFLV is associated with Adobe Flash Player, which was discontinued in 202, so it doesn't provide any securityProvide high security.
Supported Media PlayersDVDs, VCDs, Audio CDs, and other streaming protocols.All media players support it.
StreamingThe size of the flv video is small in size and is preferred for short online videos.Best for streaming videos
Maximum Resolution1080x19202048x2048
Current usageStill used but not popular nowadaysWidely used for all kinds of videos.

Which Is Better, FLV or MP4?

MP4 is generally better than FLV because it offers higher compatibility, better compression, and wider device support. MP4 files work smoothly on almost all media players, smartphones, and browsers, while FLV is an older format mainly used for Flash videos and is not supported on many modern devices. MP4 also supports more advanced codecs and provides good video quality with smaller file sizes.

Best FLV to MP4 Converter Recommend

UniFab Video Converter

If you are FLV, amine files are not playing smoothly on media players and mobile devices. It would help to have an FLV video converter to convert amine FLV to MP4. You don't need to worry because we will solve your problem with the best tool, the UniFab Video Converter. This efficient video converter can convert over 1000 video formats such as FLV, AVI, MP4, MKV, and WMV quickly and efficiently. You can convert any video with our FLV converter to watch your favorite video on your mobile device anywhere.

Best FLV to MP4 Converter

    • Free trial in 30 days
    • Easily convert FLV to MP4
    • Supports over 1000 video formats
    • High-Speed conversion
Free Download

Pros of UniFab FLV to MP4 Converter

Extensive Format Support: Supports over 1000 video formats.

High-Speed Conversion: Enables rapid and efficient video transcoding.

Mobile Device Compatibility: Facilitates seamless video playback on mobile devices by converting videos to compatible formats.

Compression: Reduces video file size while maintaining high quality.

Trimming: Enables precise video editing by allowing users to cut unwanted portions or divide videos into segments.

User-friendliness: Intuitive interface makes the software accessible to both experienced and novice users.

FLV Anime Optimization: Recognizes time values within FLV anime files, accelerating conversion and compression processes.

Hardware Acceleration: Leverages GPU technologies (NVIDIA CUDA, AMD, Intel Quick Sync) to significantly boost conversion speeds, achieving up to 50 times faster processing compared to traditional methods.

How to Convert FLV to MP4?

UniFab FLV to MP4 converter converts FLV amine files automatically in three steps:

Step 1: Install and open UniFab Software

To convert FLV to MP4 first you need to install and set up UniFab Video Converter to your PC. Then click Converter

how to convert video with UniFab - step1

Step 2: Add FLV Video & Choose Format

Add your FLV video to UniFab AI Converter using 'Add' button and choose the 'MP4' format from ‘Format’ tab. Next click 'Start' button to initiate the conversion process.

how to convert video with UniFab - step2

Step 3: Download Your Lossless MP4 Files

The file conversion speed is fast enough, within seconds you can have your playable MP4 files which you can download by clicking on the 'Download' button.

Tip: You can customize your source videos using customization tool. 

In the “Advanced Settings” you can edit audio tracks, captions, streaming, aspect ratio, brightness, and subtitle before clicking “Start” button.

Conclusion

For anyone wondering how to convert flv to mp4, especially for flv anime or large video batches, UniFab is the best flv to mp4 converter thanks to its speed, quality, and ease of use. MP4 files created with UniFab are compatible with all devices, ensuring hassle-free playback anywhere.

Download UniFab Video Converter today to convert, compress, and enjoy your videos seamlessly!

FAQs about FLV to MP4

Is FLV an outdated format?

Yes, FLV is considered outdated since it was mainly used for Adobe Flash videos, which are no longer supported on most devices.

Is FLV the same as MP4 file size?

No, FLV files are usually larger because they use less efficient compression than MP4 files.

Can FLV be converted to MP4?

Yes, FLV can be easily converted to MP4 using video converters.

Should I convert FLV to MP4 in Windows 11?

Yes, converting FLV to MP4 on Windows 11 helps improve compatibility and playback on most devices.

Can VLC convert FLV to MP4?

Yes, VLC media player supports converting FLV files to MP4 format.

What program converts FLV to MP4?

Programs like UniFab Video Converter, VLC media player, HandBrake, and many online converters can convert FLV to MP4.

As a passionate software tester, AI enthusiast, and tech lover, I bring precision and innovation to my writing. Or perhaps I'm off on a new adventure. My articles are your go-to guide for navigating the fast-paced tech landscape.