FLV, the abbreviation of Flash Video, is a kind of burgeoning web videos format. Due to its small size and fast loading speed, many famous video sharing websites like YouTube, YouKu, etc adopt FLV encoding format to provide videos. When you have downloaded a series of separate FLV video clips from YouTube or other websites, you might like to mix them together for the convenience of enjoying. How to combine FLV files into one? Follow this guide, which lists 6 technical FLV joiners to satisfy the requirement with more flexibility.
Part 1. How to Merge FLV Files in Joyoshare Media Cutter
Joyoshare Video Joiner for Windows and Mac is really a comprehensive and convenient audio and video merging program that fully supports lots of file formats including FLV, F4V, HD,4K, MP4, M4V, M4A, DV, MPEG, FLAV, WMA, and more. Besides acting as a perfect video joiner to join FLV files in batches without re-encoding, it is also a video editor on account of the built-in advanced editing tool with it. That means you have the permission to personalize and enhance your FLV files as you require prior to merging them.
What else calls for attention is the two combing modes (high-speed mode and encoding mode) it takes. With high-speed mode, you can realize losslessly and quickly joining unlimited FLV files. Under encoding mode, you are able to merge files in various formats without gap and customize codec, resolution, bit rate, frame rate, etc of your FLV files.
The Advantages of Joyoshare Video Joiner:
Join multiple FLV files in lossless quality
Extract audio from FLV at 60X speed
real-time preview and built-in editor
Freely rename and rearrange files
Step 1Run Joyoshare Video Joiner and add FLV files
Step 2Pick a merging mode and export format
Step 3Remove something undesirable parts
Step 4Edit FLV files (optionally)
Step 5Merge FLV files into one
Part 2. How to Combine FLV Files into One in Format Factory
Suppose you are a Windows user, you are possible to merge FLV files by means of Format Factory as well excepting for Joyoshare Video Joiner. Format Factory is a combination of free video joiner, recorder, converter, downloader, and editor for Windows. It works with many different file formats, including FLV, MKV, MP4, 3GP, WMV, SWF, AVI, MPG, VOB, WebM, etc. Using it to concentrate FLV files together is nothing challenging. But this may involve the risk of trivial loss in video quality.
Step 1: Launch Format Factory after installtion and go to "Video Joiner & Mux" for FLV files merging;
Step 2: Batch import FLV video files by "Add Files". When all FLV files are loaded up, press on "Clip" to trim and crop FLV files if necessary. Then, select an output format and further custom output quality by "Output Settings";
Step 3: Once done, touch "OK" to get back to the first window and proceed to "Start" to initiate the merging process.
Part 3. How to Combine FLV Files into One in Avidemux
Worked as a free and open-source video editor, Avidemux is developed to cut, filter, edit, and re-encode files on Windows, Linux, Mac, and BSD operating systems. It doesn't come with a modern interface. Many of its editing options are hidden. Merging FLV files with it is realized by the way of adding files. There is no specific "merge" or "join" button. This will make beginners confused to a great extent. Accordingly, below details how Avidemux joins files.
Step 1: Head to "File" > "Open..." to add one FLV video file to Avidemux after running it on your computer;
Step 2: Next, from "File" tab, click "Append..." to import another FLV file. If you have more FLV videos, please do the same to add them one by one;
Step 3: In case, there is no need for you to cut your FLV videos, now you can specify a desired video output format and configure its settings. If needed, tap on "Edit" > "Cut" to remove something unwanted from FLV videos; Step 4: In the last step, go to "File" > "Save" to set a destination file. After that, Avidemux will start combining your FLV files into a seamless one.