Reset to defaults
Need help?How to Convert MPG to WebM Online
- Upload Your MPG File: Drag and drop or click "Add Files" to select MPG / MPEG files. DVD rips, VCD captures, old digital camcorder footage, MPEG-1 web video from the late 1990s, and MPEG-2 broadcast recordings all work. Both
.mpgand.mpegextensions are accepted. Batch is supported — drop in an entire archive folder. - Pick a Codec and Quality: Default is VP9 (Google's modern web video codec). Choose AV1 for the smallest output on modern devices, or VP8 for legacy compatibility. Set a quality preset (Highest → Lowest), target a percentage of the original size or an exact size in MB, or fine-tune with CRF (VP9: 18 = visually lossless, 30 = default for web, 36 = small). MPEG-1/2 source bitrates are typically 1.5-9 Mbps — VP9 at CRF 28-32 usually halves that.
- Resize or Trim: Pick a resolution preset (1080p / 720p / 480p / 360p), enter custom width × height, or scale by percentage. DVD MPG sources are usually 720×480 (NTSC) or 720×576 (PAL) — most web embedding targets work better at 854×480 or 640×360. Trim with start time + duration in HH:MM:SS.sss format to cut out DVD menus, color bars, or VHS leader/tail.
- 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.
Why Convert MPG to WebM?
MPG (also .mpeg) is the 1990s-era container for MPEG-1 and MPEG-2 video — used for VCDs, DVDs, early digital camcorders, MiniDV-to-MPEG transfers, and the first generation of streamable web video before H.264 existed. WebM is Google's open-source web video format (VP8 / VP9 / AV1 video + Opus / Vorbis audio), purpose-built for HTML5 <video> tags. Common reasons to convert MPG → WebM:
- HTML5
<video>embedding — MPG plays in almost no browser natively. WebM plays in Chrome, Firefox, Edge, Opera, and Safari 14.1+ via<source type="video/webm">. This is the path for embedding old video on a modern website. - Modernizing DVD rips and VHS captures — MPEG-2 from a DVD rip averages ~5-9 Mbps; the same content as VP9 WebM at CRF 30 typically lands at 1-2 Mbps with no visible quality loss. A 4 GB DVD becomes a ~600 MB WebM.
- Digitized home video archives — Camcorder MiniDV tapes captured to MPEG-2 (a common 2000-2010 workflow) take up massive disk space. Re-encoding to WebM cuts archive size by 70-80% while remaining royalty-free.
- Royalty-free codec for commercial use — MPEG-2 has patent licensing implications for distribution. WebM (VP8 / VP9 / AV1) is unambiguously free for commercial streaming, paid platforms, and embedded video in apps.
- Self-hosting old educational / training video — Decades of corporate training, university lectures, and reference video sit as MPG files. WebM lets you serve them from your own site without H.264 / MPEG-2 licensing concerns or relying on YouTube.
- Background videos and looping clips — Hero-section background video and short looping clips work best as small, fast-loading WebM. An MPG-sourced 10-second loop becomes a tiny VP9 file ideal for autoplay.
MPG vs WebM — Format Comparison
| Property | MPG (MPEG-1/2) | WebM |
|---|---|---|
| Container origin | MPEG, ISO standard (1993 / 1995) | Google (2010) |
| Common codecs | MPEG-1 Video, MPEG-2 Video | VP8, VP9, AV1 |
| Audio codecs | MP2, MP3, AC-3 (DVD) | Opus, Vorbis |
| Compression efficiency | Outdated — pre-H.264 era | Modern — 60-80% smaller at equal quality |
| Browser playback | None — unsupported in modern browsers | Universal — Chrome, Firefox, Edge, Opera, Safari 14.1+ |
| Royalty status | MPEG-2 patent-encumbered (most expired by 2020) | Royalty-free end-to-end |
| Typical use today | DVD authoring, broadcast, legacy archive | Web embedding, royalty-free streaming |
| File size for 5 min 480p | ~150-300 MB (DVD-quality MPEG-2) | ~25-50 MB (VP9 CRF 30) |
Codec Choice for the WebM Output
| Codec | File size (relative) | Browser / device support | Best for |
|---|---|---|---|
| VP9 | 100% (baseline modern) | All modern browsers, most devices since 2017 | Default — sweet spot for web |
| AV1 | ~70% | 2022+ devices, modern browsers | Smallest size, archival of large MPG libraries |
| VP8 | ~140% | Universal back to ~2010, including older Android | Maximum compatibility, legacy fallback |
Frequently Asked Questions
Why won't my MPG / MPEG file play in my browser?
MPEG-1 and MPEG-2 are container/codec combinations that predate the HTML5 <video> standard. No major browser ships native MPG playback — Chrome, Firefox, and Edge all reject .mpg for direct embedding. Safari can sometimes play MPEG-1 via QuickTime but not MPEG-2 reliably. Converting to WebM (or MPG to MP4 for universal device coverage) gives you a file that plays everywhere without codec packs.
How much smaller will my DVD rip be as WebM?
A typical 90-minute DVD MPEG-2 rip is 4-7 GB. The same content as VP9 WebM at CRF 28-30 usually lands at 700 MB - 1.4 GB — roughly 75-85% smaller — with quality that's visually identical for normal viewing. AV1 cuts that further, often to 500-900 MB. The MPEG-2 codec is from 1995 and is significantly less efficient than VP9 (2013) or AV1 (2018).
Will I lose quality converting MPG to WebM?
A small re-encoding loss is unavoidable since MPEG-1/2 and VP9/AV1 are fundamentally different codecs. At CRF 18-22 the result is visually indistinguishable from the source. The default preset (CRF ~30) produces near-source quality at dramatically smaller file size — and because MPEG-2 was already lossy, the practical loss is minimal compared to the size saving.
Should I pick VP9, AV1, or VP8?
VP9 for almost everything — universal modern browser support, fast server-based conversion, 60-70% smaller than the source MPEG-2. AV1 for archiving large MPG libraries when you want the smallest possible files and don't mind slower encoding (5-10× slower than VP9). VP8 only for very old Android devices or extreme legacy compatibility — rarely needed today.
Will Safari users be able to play the WebM?
Safari 14.1+ (macOS Big Sur and later, iOS 14.5+) supports WebM with VP9. For older Safari, embed both formats in your <video> tag — WebM first, MP4 fallback second. Modern Safari picks the WebM; older Safari falls back to MP4. See MPG to MP4 for the fallback file.
My MPG file has weird interlacing lines — will conversion fix it?
No. DVD MPEG-2 and broadcast MPG sources are often interlaced (480i / 576i), and the converter does not deinterlace — the woven fields are re-encoded exactly as stored, so any combing in the source carries into the WebM and shows on modern flat-panel displays during motion. For a clean progressive file, deinterlace the MPG in a desktop editor first, then convert that export here.
Can I trim a long MPG / DVD rip?
Yes. Use the trim section with start time + duration. Both accept seconds (12.5) or HH:MM:SS.sss format (00:01:30.500). This is especially useful for DVD rips that include menu loops, FBI warnings, color bars, or studio logos at the start — trim them off before encoding to save both processing time and output size.
Will the audio survive — including DVD AC-3 surround?
Yes. MPG audio (MP2, MP3, or AC-3 from DVD) is decoded and re-encoded to Opus (default for WebM) or Vorbis. Stereo audio is preserved transparently at 96-128 kbps Opus. AC-3 5.1 surround from DVD rips is downmixed to stereo Opus by default — if you need to keep multichannel, that's not a WebM strength and you may want to keep an MP4/AC-3 copy alongside.
Can I batch convert a whole folder of old MPG files?
Yes — drop in folders of MPG / MPEG files. They convert in parallel on our servers and download individually or as a single ZIP. This is how most users modernize a multi-year DVD or camcorder archive in one pass.