Xvid to Xvid

How to Re-encode Xvid Online

1. Upload Your Xvid File: Drag and drop, or click "+ Add Files" to pick an Xvid-encoded .avi (or .xvid) from your device. Batch is supported, so queue several files for the same recompression pass.
2. Pick Quality Preset or Bitrate Mode: Default is "Very High (Recommended)" under File Compression. Switch to "Quality Preset" (Highest, Very High, High, Medium, Low, Very Low, Lowest) for one-click compression, "Specific file size" to hit a target like 700 MB, "Constant Bitrate" or "Variable Bitrate" to dial in kbps directly, or "Constant Quality" / "Constraint Quality" to drive the encoder by quantizer (Xvid quantizer ranges 1-31, lower = better quality).
3. Resize or Trim (Optional): Under Video resolution use Resolution Percentage, Preset Resolutions (1080p, 720p, 480p, 360p, 240p), or Width x Height to downscale. Under Trim, switch from "Unchanged" to "Time Range" and set start time plus duration to keep only the segment you need.
4. Re-encode and Download: Click "Convert" and grab the new Xvid file. 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.

Why Re-encode Xvid to Xvid?

Xvid is a free, GPL-licensed implementation of MPEG-4 Part 2 Advanced Simple Profile, forked from OpenDivX in 2001. The encoder is twenty years old, but the format still ships on millions of DivX-Certified DVD/Blu-ray players, older car-deck media players, and legacy NAS units that won't decode H.264 or HEVC. A same-codec re-encode lets you change bitrate, resolution, or trim length while keeping that hardware playback compatibility — something a one-shot Xvid-to-MP4 conversion would break.

• Shrink legacy AVI archives — Older DVD rips often sit at 1500-2000 kbps in 720x480; a quantizer-3 single-pass re-encode at 480p typically halves the size with watchable quality. Single-pass quantizer mode targets a constant quality level, two-pass bitrate mode targets a fixed file size — pick based on whether quality or size matters more for the archive.
• Fit a CD or DVD-R budget — Use "Specific file size" to target 700 MB (CD-R), 4.37 GB (DVD-5), or 8.5 GB (DVD-9 dual-layer) so the file slots cleanly onto physical media for set-top players that still read AVI discs.
• Lower bitrate for slow playback hardware — Older Philips/Sony DivX-Certified players cap practical playback near the DivX Home Theater profile (~9.7 Mbps VBV). A re-encode at 1500-2500 kbps avoids stutter on those decks.
• Trim before recompression — Cutting commercials or intros first, then recompressing once, avoids the generation loss of trim → re-export → re-encode cycles.
• Fix a broken or truncated AVI — Re-encoding through a clean decode/encode pass rebuilds the index and timestamps, fixing files that won't seek correctly in VLC or Windows Media Player.
• Strip extra audio tracks — A re-encode collapses to a single chosen audio codec (MP3, AC3, AAC) so the AVI plays predictably on hardware that only picks the first track.

Xvid vs Modern Codecs (Same File, Different Encodings)

Source: Wikipedia Xvid, MPEG-4 Part 2, DivX.

Xvid Bitrate & Quality Quick Guide

DivX Home Theater 9.7 Mbps VBV cap from DivX; Xvid quantizer range 1-31 from the MPEG-4 Part 2 standard.

Frequently Asked Questions

Why would I re-encode Xvid to Xvid instead of converting to MP4?

Two reasons: hardware playback and lossless container fixes. DivX-Certified DVD players, older PMPs, and many car head units only decode MPEG-4 Part 2 in an AVI container — H.264 in MP4 won't play. Re-encoding Xvid-to-Xvid keeps that compatibility while letting you change bitrate, resolution, or trim length. If you don't need that compatibility, Xvid to MP4 with H.264 typically halves the file size at the same visual quality.

Will I lose quality re-encoding Xvid?

Yes — every lossy re-encode loses some quality. The loss is small if you start with a high-bitrate source and pick Quantizer 2 or "Highest" preset, larger if you target an aggressive file-size reduction. Avoid re-encoding the same file repeatedly; each generation compounds the loss. If you want the smallest possible same-codec output without further generation loss later, lock in your final settings on the first pass.

What's the best bitrate for 720p Xvid?

For watchable 720p Xvid playback, 1500-2500 kbps Constant Bitrate is typical; 3000-4000 kbps gives near-DVD quality. In Constant Quality mode, Quantizer 3 is the common "watchable" target and Quantizer 2 is what enthusiast forums (VideoHelp, Hydrogenaudio) recommend for content you care about. For 480p (DVD-resolution) downscales, 1000-1500 kbps is usually enough.

Can I switch the audio codec while re-encoding?

Yes. Under Audio codec you can pick MP3 (most compatible for Xvid AVI), AC3 (5.1 surround on DVD players), or AAC. MP3 stereo at 128-192 kbps is the safest choice for legacy DivX-Certified hardware; AC3 at 384-448 kbps is standard for surround DVD rips.

Does Xvid support 4K or HDR?

No. MPEG-4 Part 2 ASP was designed for SD and early HD content. The format has no HDR metadata channel, no 10-bit profile in common use, and no hardware acceleration on modern GPUs above 1080p. For 4K or HDR, re-encode to Xvid to HEVC or Xvid to MP4 instead.

Is Xvid the same as DivX?

They share an origin. Both forked from the OpenDivX project in 2001 — DivX, Inc. went commercial with the encore2 algorithm, and other contributors continued open development as Xvid. Both encode MPEG-4 Part 2 ASP, so a properly muxed Xvid AVI plays on most DivX-Certified players. The codecs aren't bit-identical, but they're interoperable. If you need the DivX-branded codec specifically, use Xvid to DivX.

How do I shrink an Xvid file to fit on a CD-R?

Use "Specific file size" under File Compression and enter 700 MB. The encoder picks a bitrate that hits the target while preserving as much quality as possible. For long content (over 90 minutes), drop the resolution to 480p first — keeping 720p at 700 MB total usually looks worse than 480p at the same file size.

Can I just trim my Xvid without recompressing?

Not on this page — re-encoding always re-runs the codec. For a no-recompress cut at keyframe boundaries (faster, no quality loss, but only cuts at keyframes), use Trim Xvid instead. If you need a frame-accurate cut, the recompression pass on this page is what you want.

Will GMC and Qpel features survive the re-encode?

Only if you started with them and the encoder re-enables them. Global Motion Compensation (GMC) and Quarter-pixel motion (Qpel) are advanced MPEG-4 Part 2 features that some hardware DVD decoders refuse to play. Most online encoders, including this one, default to standard ASP without GMC/Qpel for maximum hardware compatibility. The output plays on more devices than an aggressively-tuned source might.