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Supports: F4V
F4V is Adobe's Flash video container, and Flash itself is gone — Adobe ended Flash Player support on December 31, 2020 and blocked Flash content from running on January 12, 2021. Converting an old F4V to a .mpeg file re-encodes it to MPEG-2 video with MP2 audio, the program-stream format that DVD-era set-top boxes, disc-authoring software, and older hardware players read natively. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark.
.mpeg.| Property | F4V (input) | MPEG (output) |
|---|---|---|
| Container | Adobe Flash, ISO MP4-based | MPEG program stream |
| Introduced | 2007 (Flash Player 9 Update 3) | MPEG-2 standardized 1995 (ISO/IEC 13818) |
| Video codec | H.264 | MPEG-2 (H.262) |
| Audio codec | AAC | MP2 (MPEG-1 Audio Layer II) |
| Compression efficiency | Higher (modern) | Lower — file can grow at equal quality |
| Best for | Legacy Flash streaming | DVD authoring, older hardware players |
| Still maintained? | No — Flash is end-of-life | Yes — widely supported, but dated |
Because this is a re-encode from H.264 to the older MPEG-2 codec, expect some generation loss and, often, a larger file at the same resolution. If your goal is modern playback rather than DVD-era hardware, convert F4V to MP4 instead — it keeps the efficient H.264 video and plays on phones, browsers, and TVs without re-encoding the codec family.
Choose MPEG when your target is DVD authoring or an older hardware player that expects MPEG-2 program streams. MPEG-2 is the mandatory video codec for DVD-Video, so disc-authoring tools accept it directly. For phones, browsers, smart TVs, and modern editors, MP4 is the better target — it is more efficient and far more widely supported today.
Some, yes. F4V stores H.264 and .mpeg outputs the older MPEG-2 codec, so the video is fully re-encoded — that is one generation of lossy compression. Keeping the "Very High (Recommended)" Quality Preset and the original resolution minimizes visible loss. Because MPEG-2 is less efficient than H.264, the output file is often larger than the source even though it looks slightly softer.
F4V is Adobe's MP4-based Flash video container, introduced in 2007 for streaming through Flash Player. It holds H.264 video and AAC audio. Since Adobe ended Flash Player on December 31, 2020, browsers no longer run Flash content, so F4V files often won't open in the players they were made for. VLC still plays many F4V files, but converting to MPEG or MP4 is the reliable fix.
Yes. In Advanced Options, use Trim to export only a chosen time range, and use Video resolution to keep the original size, select a preset such as 1920 x 1080, or scale by percentage. In our testing, a 1080p F4V exported at the same resolution with the default Quality Preset produced a clean MPEG-2 program stream that opened in VLC and standard DVD-authoring software.
Your file is uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — never shared or made public, with no sign-up and no watermark. The practical limit is upload size and time rather than a hard cap, so very large F4V files take longer to transfer; trimming to the section you need keeps uploads fast.