MP4 to FLV

Free

Convert MP4 video to FLV format

Drop video here or click to browse

Convert MP4 video to FLV format

About MP4 to FLV

FLV is a legacy Flash video format that some older streaming setups and archived projects still rely on. MP4 to FLV converts your modern video into FLV so it works with that older software or matches existing files in a project.

Upload your MP4 and download the FLV result in seconds. Everything happens in your browser, with no signup, no watermark and nothing to install. Codaiman keeps the tool free and privacy-first, so you can produce a legacy FLV when a specific tool demands it, without tracking down old desktop encoders or creating an account.

Common uses

  • Matching the FLV format an older streaming system expects
  • Feeding a legacy media tool that still reads FLV
  • Updating files in an archived Flash-era project
  • Preparing video for software that hasn't moved to MP4
  • Producing FLV for compatibility with old playback setups

How to use

  1. 1

    Upload your file

    Click the upload area or drag & drop your file. Supports MP4. Up to 50 MB.

  2. 2

    Click "Process — MP4 to FLV"

    Click the process button. Your file is converted instantly on our secure servers.

  3. 3

    Download your result

    Preview and download your converted file. No watermarks, no quality loss, no expiry.

Why ToolHub?

  • 100% Free — no account needed
  • Works in your browser — no software required
  • Instant results
  • Secure and private
  • No data stored
  • Simple to use

FAQ

Is FLV still worth using?

FLV is largely outdated since Flash was retired. It's mainly useful for compatibility with older systems or archived projects. For new work, MP4 is the better choice.

Will modern players open FLV?

Some do, but support is patchy. Players like VLC handle it, while many phones and browsers no longer do.

Does the conversion keep my video's quality?

The output keeps the original resolution, though FLV's older compression may differ from MP4's efficiency.

Can I use MP4 to FLV on mobile?

Yes — ToolHub is fully responsive and works on iPhone, Android, tablets and all modern browsers. No app install needed.