Convert your FLV files to MP4 in seconds. Free, secure, and works directly in your browser — no software to install, no account required.
Lightning-fast conversion that works with all major formats.
Drag and drop or select one or more files from your device.
Files are converted automatically in your browser.
Grab your converted files and use them anywhere.
A complete media converter built for speed and compatibility.
Convert between all major video, audio, and image formats including MP4, WebM, MOV, MP3, WAV, PNG, JPEG, and more.
Drop multiple files at once and convert them all in parallel with individual progress tracking.
Pull audio tracks from video files and save them as MP3, WAV, OGG, or Opus.
Browser-based conversion delivers results in seconds without uploading to any server.
Your files are processed locally in your browser. Nothing is uploaded to any server.
Output is optimised to stay as close to the original as the target format allows.
FLV (Flash Video) was once the standard for online streaming via Adobe Flash Player. Now considered outdated, FLV files use older codecs like Sorenson Spark and lack mobile support. Modern websites have shifted to HTML5 video with MP4 or WebM formats. FLV remains relevant only for legacy content conversion.
MP4 (MPEG-4 Part 14) is the most popular video format for online sharing, streaming, and storage. It uses H.264 or H.265 video encoding with AAC audio, ensuring high compatibility across devices, social media platforms, and video players. MP4 files balance quality and compression, making them ideal for YouTube, Instagram, and professional video production. Its universal support makes it the go-to format for most users.
Find answers to common questions about our media converter.