FLV to DivX Converter

How to Convert FLV to DivX Online

1. Upload Your FLV File: Drag and drop or click "Add Files" to select FLV files. Old YouTube downloads from the Flash era (2005-2014), archived webinars, e-learning recordings, ScreenFlow / Camtasia exports, and recorded streams from JW Player or RTMP servers all work. Batch is supported — drop in a folder of legacy clips for sequential conversion.
2. Pick a Codec and Quality: Default is DivX (MPEG-4 ASP) — the codec DivX-certified hardware decodes natively. Switch VIDEO_CODEC to Xvid for an open-source MPEG-4 ASP encoder that's bitstream-compatible with DivX-certified players, or MPEG-4 (Part 2 baseline) for very early certified devices that predate DivX 5. Set a VIDEO_QUALITY_PRESET (Highest → Lowest), target a percentage of the source size or an exact size in MB, dial in a constant or variable bitrate (typical: 1000-1500 kbps for SD FLV upscaled to DVD profile, 1500-2500 kbps for 720p), or fine-tune with QSCALE quality (lower = better, higher = smaller).
3. Resize or Trim (Optional): Pick a VIDEO_FIXED_RESOLUTION_PRESET (720×576 PAL DVD, 720×480 NTSC DVD, 854×480, 1280×720, 1920×1080), enter custom width × height, scale by percentage, or trim using start time + duration in seconds or HH:MM:SS.sss. Most FLV files are natively 320×240, 480×360, or 640×360 — keep them at native resolution or upscale carefully (DivX upscaling looks best at 720×576 for DVD targets).
4. Convert and Download: Click Convert. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, never shared. Burn the resulting .divx (or rename to .avi) to a USB stick or DVD-R for the legacy player.

Why Convert FLV to DivX?

FLV (Flash Video) was the dominant web video format from 2003 to roughly 2015 — the format YouTube, Hulu, Vimeo, and most streaming sites used during the Flash era. Adobe officially discontinued Flash Player on December 31, 2020, and modern browsers no longer support it. FLV files are stranded — playable only inside VLC, MPC-HC, or specialty converters. DivX is a late-90s/early-2000s MPEG-4 Part 2 codec that became a household name because it shipped inside millions of "DivX Certified" DVD players, set-top boxes, and car head units between 2003 and 2015. Converting FLV → DivX is a niche but legitimate bridge: it gets your old Flash-era recordings onto the same legacy hardware that already plays the rest of your DivX library.

• Burning Flash-era YouTube downloads to a DivX DVD-R archive — Old YouTube downloads saved as FLV between 2007 and 2014 sit in dusty folders. Re-encoding to DivX and burning to a 4.7 GB DVD-R as a data disc lets a 2008-era Philips or Pioneer DivX-certified DVD player handle them like any DivX disc.
• Replaying corporate training and e-learning archives — Articulate, Adobe Captivate, and Camtasia all exported FLV between 2005 and 2014. Compliance archives often still hold those files. Converting to DivX puts them on the same media stick that holds the rest of a company's DVD-era training library.
• Car DVD/USB head units (2005-2014) — Pioneer AVH-series, Kenwood DDX-series, and JVC KW-series in-dash receivers from that era are DivX-certified but reject FLV outright. Dropping the converted .avi onto a FAT32 USB stick gets recorded webinars or screen captures playing in the car.
• Older Smart TV USB playback (2008-2012) — Early LG, Samsung, and Sony Smart TVs advertised "DivX HD" in their spec sheets and play .divx / .avi over USB but show "unsupported format" for FLV.
• Matching an existing DivX media library — If your home server already holds a folder of DivX .avi rips, encoding new FLV imports to the same codec means a single decoder profile across the library — no codec confusion when scanning in WMP Classic, MPC-HC, or VLC on Windows XP-era machines.
• Fixing playback on broken FLVs — Many old FLVs have minor corruption from incomplete RTMP captures or interrupted browser downloads. Re-encoding to DivX rebuilds the index cleanly and resolves most playback failures.

FLV vs DivX (AVI) — Format Comparison

DivX vs Xvid vs MPEG-4 — Codec Choice

Resolution Targets for DivX Profiles

Frequently Asked Questions

Why convert FLV to DivX in 2026 instead of MP4?

The only reason is target hardware. DivX-certified DVD players, set-top boxes, and car head units made between 2003 and 2015 have an MPEG-4 ASP decoder chip and reject H.264 / H.265 streams. If your end goal is playback on a Pioneer AVH head unit, a 2009 Samsung Smart TV with USB, or a basement Philips DivX-certified DVD player, DivX is the only codec the hardware will decode. For everything modern (phones, laptops, current TVs), convert FLV to MP4 instead — universal, smaller files, better quality.

Will the FLV upscale cleanly to DVD resolution?

Most FLVs were encoded at 320×240, 480×360, or 640×360 because Flash-era streaming bandwidth was tight. Upscaling to 720×576 (PAL DVD) or 720×480 (NTSC DVD) won't add detail that wasn't there, but DivX-certified DVD players need DVD-profile resolution to render correctly to the TV. The upscale will look soft but acceptable. For 720p Smart TVs, leaving the file at native resolution often looks cleaner — modern TVs upscale on the fly.

Should I pick DivX or Xvid?

DivX-certified hardware decodes both — Xvid is bitstream-compatible with the DivX MPEG-4 ASP profile. Pick DivX when matching files in an existing DivX library (consistent QPEL/GMC profile flags). Pick Xvid for fresh conversions where you want an open-source encoder. Pick MPEG-4 (Part 2 baseline) only for pre-2004 certified devices that predate DivX 5.

Will DivX-certified DVD players actually play the file off a USB stick or burned DVD-R?

Yes — that's the whole point of the DivX certification. Format the USB as FAT32 (most legacy players don't read exFAT or NTFS), drop the converted .avi files into the root, and most DivX-certified players index and play them. For DVD-R, burn as a data disc (UDF or ISO9660), not a Video DVD. Keep filenames under 64 characters and stick to ASCII for old firmware.

Should the file extension be .divx or .avi?

Functionally identical — both contain MPEG-4 ASP video inside an AVI-style container. Most DivX-certified hardware accepts both. .avi is safer for car head units and very old DVD players, since some early firmware only scans for .avi extensions. Rename the output if your player ignores .divx files.

Will the file be larger or smaller than the source FLV?

Usually larger. FLV at 320×240 from 2010 was often encoded at 300-500 kbps with Sorenson H.263 — tiny by modern standards. Re-encoding to DivX at the DVD profile (1500-2500 kbps) at 720×576 produces a much bigger file with no real quality gain, since you can't recover detail that was never captured. Lower the bitrate or keep the source resolution if you want to keep the file small.

Will the audio survive Nellymoser and Speex source tracks?

FLV often used Nellymoser or Speex for low-bandwidth speech audio (webinars, screen recordings). Both are decoded and re-encoded to MP3 (DivX/AVI's typical audio codec). Speech-codec audio sometimes sounds slightly different after re-encoding to MP3 — usually clearer at 128 kbps or higher. Music-style audio (MP3 / AAC inside the FLV) survives essentially intact.

Can I trim or batch convert old FLV files?

Yes to both. Use the trim section to enter a start time and duration in seconds (12.5) or HH:MM:SS.sss format (00:01:30.500) — useful for stripping pre-roll Flash banners, JW Player intros, or post-credit captures. For batch, drop in a folder of FLV files and they convert sequentially with the same settings. If you need a different output format for some files, see FLV to AVI for plain AVI without the DivX profile flags, or FLV to MP4 for modern devices.

Can DivX players handle subtitles from the source?

DivX inside AVI has no native subtitle track support. If your FLV had embedded captions, save them as an external .srt file with the same base name as the .avi (e.g., Lecture.avi + Lecture.srt). DivX-certified players that advertise external subtitle support load the .srt automatically; older players ignore it. Burning subtitles into the video before conversion is the only way to guarantee they appear.