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Convert and compress videos/audios.

Your Complete Video Toolbox

Wondershare UniConverter

  • Reduce FLV file size at 30X faster speed than other compressors.
  • Shrink FLV video size by trimming, cropping or adjusting video parameters.
  • Convert FLV to MP4, WMV and other smaller-sized formats.
  • Burn and customize your DVD with free DVD menu templates.
  • Versatile toolbox combines screen recorder, GIF maker, fix video metadata, etc.
compress FLV


1. FLV Video Tool+
  1. 1.1 FLV Splitter
  2. 1.2 FLV Player
  3. 1.3 Free FLV Player
  4. 1.4 Free FLV Player for Mac
  5. 1.5 Online FLV Converter
  6. 1.6 FLV Converter for Win10
  7. 1.7 Free FLV to MP3 Converter
  8. 1.8 Free FLV to WAV Converter
  9. 1.9 Free FLV to 3GP Converter
  10. 1.10 FLV to WMV Converter
  11. 1.11 FLV to WebM Converter
  12. 1.12 FLV to AVI Converter Online
  13. 1.13 MP4 to FLV Converter Online
  14. 1.14 AVI to FLV Converter
  15. 1.15 WMV to FLV Converter
2. Convert FLV to Other Format+
  1. 2.1 Convert FLV to MP4
  2. 2.2 Convert FLV to MP4 Free
  3. 2.3 Convert FLV to MP4 Mac
  4. 2.4 Convert FLV to MOV
  5. 2.5 Convert FLV to MOV Online
  6. 2.6 Convert FLV to AVI
  7. 2.7 Convert FLV to MKV
  8. 2.8 Convert FLV to M4V
  9. 2.9 Convert FLV to MP3
  10. 2.10 Convert FLV to DivX
  11. 2.11 Convert FLV to VOB
  12. 2.12 Convert FLV to SWF
  13. 2.13 Convert FLV to DV
  14. 2.14 Convert FLV to iPad
3. Convert Other Format to FLV+
  1. 3.1 Convert MP4 to FLV
  2. 3.2 Convert MTS to FLV
  3. 3.3 Convert MKV to FLV
  4. 3.4 Convert M4V to FLV
  5. 3.5 Convert MOV to FLV
  6. 3.6 Convert MPG to FLV
  7. 3.7 Convert OGV to FLV
  8. 3.8 Convert SWF to FLV
4. Play & Edit FLV Tips+
  1. 4.1 Play FLV in VLC
  2. 4.2 Play FLV on TV
  3. 4.3 Stream FLV to TV with Google Chromecast
  4. 4.4 Play FLV on Xbox One
  5. 4.5 Play FLV in PS4/PS3
  6. 4.6 Play FLV in Windows Media Player
  7. 4.8 Compress FLV Videos
  8. 4.9 Edit FLV in Windows Movie maker
  9. 4.10 Edit FLV in Adobe Premiere
  10. 4.11 Edit FLV in Final Cut Pro
  11. 4.12 Edit FLV in Sony Vegas Pro
  12. 4.13 Edit FLV in Sony Movie Studio
  13. 4.14 Edti FLV in iMovie for Editing
  14. 4.16 Insert FLV to Powerpoint
  15. 4.17 What is an FLV File

FLV Compressor: How to Compress FLV Files Fast

by Christine Smith • 2024-01-11 10:25:13 • Proven solutions

Get some amazing FLV videos, but can't attach them in an email to share with friends? Or want to upload some FLV videos online, but it takes hours to proceed? You're not alone. Digital videos are often too large for many email systems. Also, uploading a large FLV file online takes a long time to proceed if you don't have a high-speed connection. Thus, reducing FLV file size is the key point if you want to share FLV videos. In this article, you'll learn how to compress FLV videos while keeping the original quality using Wondershare UniConverter (originally Wondershare Video Converter Ultimate) for both Windows and Mac.

Wondershare UniConverter - Best FLV Compressor

  • Easily compress FLV videos without any quality loss.
  • Reduce FLV file size by changing video format, bit rate, resolution, and other parameters.
  • Support 1000+ video and audio formats, including MP4/MOV/AVI/MKV/WMV and others.
  • Burn FLV to DVD and play with your DVD player at 90X faster speed.
  • Optimized conversion presets for iDVD, iMovie, Final.
  • Edit videos with advanced video editing functions, like trimming, cropping, adding watermark, subtitles, etc.
  • Download videos from YouTube and other 1000+ video sharing sites.
  • Supported OS: Windows 10 (32 bit & 64 bit), Windows 8/7/Vista/XP/2003, Mac OS 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6.
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Steps on How to Compress FLV Videos

Video Tutorial: How to Compress FLV Videos Easily with Wondershare UniConverter

Step 1 Import FLV files to this FLV compressor.

First of all, you should install and open Wondershare UniConverter on your PC/Mac. Then click the Toolbox section and choose Video Compress from the given options. After that, you'll see a pop-up window with the + icon, click on it to add an FLV file you want to compress.

 Compress FLV Files Fast - add files

Step 2 Compress FLV videos in a few clicks.

You'll then see the information of your added FLV video, and you can find a progress bar on it. Moving the bar, you can change the file size, bit rate, video quality accordingly; you're also allowed to change video format and video resolution here. Click on the Preview button to check your changes.

Compress FLV Files - flv formats

Step 3 Start to Compress FLV files.

At the File Location tab, choose the saved file location for your FLV file. Now, you can hit the Compress button to activate FLV compression. After the file compression completes, you may smoothly upload it online or add it to your email to share it with friends. Congratulations!

Compress FLV Files - Start to Compress

Tips: These are so easy steps, right? You can also follow the same steps above to compress FLV files on the Mac version. If you're looking for compressing multiple FLV files, you can learn the detail about how to compress FLV video files in batch >>.

Christine Smith

Christine Smith

chief Editor

Resource > FLV Solutions > FLV Compressor: How to Compress FLV Files Fast