By Justin SabrinaUpdated on September 05, 2025
“My friend emailed me with high quality MPEG / MPG videos and I plan to upload them to YouTube for online streaming video. As far as I know, YouTube is not compatible with my video format. Is there a convenient program that allows me to convert video directly to FLV-YouTube supported?”

FLV, short for Flash Video, is a streaming video type that can be used for video sharing sites like YouTube, Google Video, Hulu, Yahoo, and more. Today, many video websites are available to people all over the world. If you want to share AVI, MPEG, WMV files or DVDs via a video sharing service, you need to convert them to a web-friendly format such as FLV.
Ultra-fast Conversion of Video to FLV and Vice Versa
If you search for how to convert video to FLV, an all-in-one video converter – UkeySoft Video Converter Software offers the fastest speed to free convert videos(such as ASF, AVI, MPEG, WMV, WMA, MP4 etc. format) to FLV or from FLV to common video format while holding the original quality. More importantly, it supports background conversion and batch conversion, which allows you to adjust the video/audio parameters to suit your requirements. With simple 4 steps, you can complete the task for converting video to FLV. Now get the software installed on your computer and try.
KEY FEATURES
Step 1. Launch Videos Converter
Download free MP4 to FLV converter and install on your computer. Launch it and the software is compatible with Windows (starting from Vista) PCs and laptops.
Step 2. Add MP4 Video Files
If you have many MP4 files for conversion, you can either add them all at once or one by one. The files can be added by clicking the “Add files” or by simple drag-n-drop. You can add as many MP4 videos as you need. The MP4 to FLV Converter doesn’t have any file, quality or video length limitations.

Step 3. Pick FLV as the Output Format
Go to "Format" and choose "FLV" as your output format.

Before conversion, you can customize the conversion settings as you wish. You can clip, crop, or add water mark to the video you have just imported.

Step 4. Start Converting Video to FLV
When your settings and output directory are selected, you then click the "Convert" button. The freeware will change your MP4 to FLV in a few moments. Alternatively, you can convert MP4 to MP3 with Video Converter software.

Justin Sabrina has over 10 years of content writing experience. She specializes in product reviews, how-to guides, tips and tricks, top lists, etc. on data encryption, multi-media conversion, screen recording and iOS unlocking. At UkeySoft, she performs in-depth research SEO copywriting and collaborates with our R & D team to offer effective software solution, most of her articles on software are helpful and easy to read, helping our reader easily solve problems through using software or apps.
Li Zhang is a sophisticated editor for UkeySoft in tech blog writing, as well as a SEO and content marketing expert. She has been writing related article about multimedia conversion, streaming music and streaming video since 2018. Also, she's starting to write article about data security, including articles about file lock, USB encryption, DVD encryption, etc. Each helpful tutorial and solution is based on her practical tests, she is aways energetic and trustworthy in this field.
Chester is an experienced editor for UkeySoft focused on tech article writing, software & hardware produce review and tutorial. He specializes in composing posts about music conversion, video downloading, video conversion, screen recording and other tech knowledge tips. He always understands user needs and pain points and familiar with all kinds of multimedia conversion software and streaming music downloader on the market. So far, he has published 400+ helpful tech articles of software reviews, how-to guides to help reader in need.
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