How to Compress FLV Files Losslessly for FREE in Windows

Just like MP4 at present, FLV was once one of the mainstream video formats and is still frequently used as a media on the internet. However, your FLV video could be large if they are saved as a file in 1080P and higher quality, which will result in difficulty in uploading it or sending it in an email. Hence, it is now essential to know how to compress FLV videos losslessly in Windows. In this article, we will introduce you to two ways to realize this goal: Compress FLV Videos Losslessly with a Desktop Tool–WorkinTool File Compressor (It’s FREE, easy and convenient) and Reduce FLV File Size Losslessly via an Online Video Compressor-Clideo. Please start your reading now to know the specific guides.

Last updated on Apr 18, 2022 by Eric Written by Eric
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How to Compress FLV Files Losslessly for FREE in Windows

How to Compress FLV Files Losslessly for FREE in Windows

Just like MP4 at present, FLV was once one of the mainstream video formats and is still frequently used as a media on the internet. However, your FLV video could be large if they are saved as a file in 1080P and higher quality, which will result in difficulty in uploading it or sending it in an email. Hence, it is now essential to know how to compress FLV videos losslessly in Windows.

Today, we will introduce you to two ways to realize this goal:

  • Compress FLV Videos Losslessly with a Desktop Tool
  • Reduce FLV File Size Losslessly via an Online Video Compressor

Both of them prove to be easy, convenient and FREE. Now, let’s begin.


Words Before Your FLV Video Compression

πŸ“ŒWhat is an FlV file?

FLV, short for Flash Video with the extension of .flv, is a video introduced by Adobe Flash Player. Also, it is a container file format used to deliver digital video content (e.g., TV shows, movies, etc.) over the Internet by Adobe. Meanwhile, there are two different Flash Video file formats: FLV and F4V. The audio and video data within FLV files are encoded in the same way as SWF files, while the F4V file format is based on the ISO base media file format, starting with Flash Player 9 update 3. Both formats are supported in Adobe Flash Player and developed by Adobe Systems.

πŸ“ŒHow to open FlV files?

An FLV video can usually be opened by Adobe Flash Player. For the Windows system, you can open it with a built-in program–Windows Media Player or FLV Media Player downloadable in Microsoft Store. Additionally, you can resort to other third-party video players like VLC and Winamp to open it.

πŸ“ŒWhy do you need to compress FLV files?

An FLV file is generally not as large as an MP4, AVI or WMV video. However, it will sometimes be too large for you to upload it onto your personal website/social media platforms effortlessly or send it through an email conveniently. Therefore, it is important to master the skill of reducing FLV file size.

Please read on to know the free and helpful solutions to compressing FLV files without losing quality.


Compress FLV Videos Losslessly with a Desktop Tool

Since no built-in programs are able to complete a video-compression task, you have to turn to a practical desktop tool for help. Here, you can try WorkinTool File Compressor.

πŸ“•How to compress FLV videos through WorkinTool File Compressor?

1. Open the tool and find Video Compression.

choose video compression in workintool
2. Click Add file to upload your FLV video(s).

click add file in workintool
3. Adjust the settings below based on your needs and then press the Compress tab.

compress flv files through workintool

Here is the result.

outcome by smaller size mode
Outcome: Smaller Size
outcome by clearer output mode
Outcome: Clearer Output

πŸ“’Notes:

1). Two default compression modes are available in the General Settings:

  • Smaller Size: It aims to export an FLV video with the smallest size while maintaining its original quality.
  • Clearer Output: You will get a compressed FLV file without losing quality. The reduced size will be larger than the mode mentioned above.

2). All the settings in the Additional Settings are optional for you to save a more customized compressed video. For instance, an extremely small file size is what you are looking for regardless of its resolution or ultimate quality.

πŸŽ₯ Video 🎼Audio

Zoom

It is linked to the resolution of your FLV video. 100% means that the video is now in the original resolution. When you lower the resolution, it will become smaller.

Bit Rate

The higher the bitrate of your audio is, the better its quality will be.

Resolution

The screen size of your video is adjustable through this function. The lower the resolution of your video is, the smaller its size is. However, the quality may be subject to sacrifice.

Sample Rate

Just like bitrate, it also decides the ultimate quality of your audio. The higher, the better.

Bit Rate

The higher the bitrate is, the better your video quality will be.

Frame Rate

It decides the speed at which the images in your video are shown. The higher the frame rate is, the more still images are packed into each second of a video, which results in a larger size.

3). Batch compression is possible in WorkinTool File Compressor. So you can make multiple compressed FLV videos simultaneously with just one click.

batch compression in workintool

πŸ“£Additional Words

πŸ“ŒWhat is WorkinTool File Compressor and why should you choose it?

WorkinTool File Compressor is a powerful and all-around file-compression solution provider. Attaching great importance to lightweight and practical concepts, its designers endow it with an easy-to-use interface that makes beginners feel convenient to operate. So you don’t have to be tech-savvy to complete a compression task with its help.

Here are some specific reasons for picking it:

πŸ’‘Powerful
WorkinTool File Compressor boasts the following abilities:

Features Supported File Formats
Image Compression JPG, PNG, GIF and BMP
Video Compression MP4, WMV, AVI and FLV
Word Compression DOC and DOCX
PowerPoint Compression PPT and PPTX
PDF Compression PDF

Therefore, it proves a great help in the modern workplace and at school.

πŸ’‘Two Compression Modes
There are two compression modes to get the custom reduced FLV files based on your different needs: Smaller Size and Clearer Output.

πŸ’‘Additional Settings Available
You can expect a further customized outcome by adjusting the video and audio qualities, including video resolution, bitrate and frame rate as well as audio bitrate and sample rate.

πŸ’‘Batch Compression
You save the cumbersome process of shrinking your FLV videos one by one and can expect various compressed videos all at once with just one click.

πŸ’‘High-Quality Guarantee
The compressed FLV files processed by WorkinTool will be saved without losing quality.

πŸ’‘Green
There will be no ads involved in the course of your file compression and no intrusive watermarks on your output.

πŸ’‘100% FREE
WorkinTool File Compressor is completely free for users currently, so all the features are accessible without a license payment and compulsory registration.


Reduce FLV File Size Losslessly via an Online Video Compressor

If it truly bothers you to download and install the desktop software, you can find some valuable information in this chapter. An online video compressor will definitely be of immense help to reduce your FLV file size. Today, we will present you with a useful one–Clideo.

Clideo is one of the most recognized and acclaimed online video editors. With a simple tool, it is designed to assist the general public in editing their videos as they like. Its feature-Compress is what we are going to talk about here. With its help, you can easily shrink your FLV video size in a flash. Normally, there will be no sacrifice to the final quality of your FLV file and you can either download it on your PC or save it on the cloud devices like Google Drive and Dropbox. However, a brand logo watermark will generate on the output if you use its free version.

πŸ“•How to reduce FLV file size losslessly by Clideo?

1. Open Clideo and select Compress.

open clideo and select compress
2. Click Choose file to upload your FLV video.

click choose file in clideo
3. Clideo will automatically decide the best way to compress it and then click Download.
(Or choose any cloud device you plan to save your shrunk video.)

compress flv files through clideo

πŸ™‹β€β™‚οΈHere is what we think about this method.

πŸ˜€Good News πŸ˜’Bad News
  • Simple interface
  • Easy compression steps
  • Automatic compression
  • Cloud devices storage available
  • High-quality output
  • Internet access required
  • Unstable uploading speed
  • No compression mode optional
  • Batch compression unavailable
  • Company logo watermark on the output for its free version

Final Thought

It will be beyond easy to compress FLV files when you have a proper solution. We hope you find both methods or anyone of them recommended here ideal for you. However, it is strongly advisable to give WorkinTool File Compressor a try.

Now, are you ready to reduce your FLV file size?

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