MP4 to AV1 Converter
Initializing... drag & drop files here
Supports: MP4, M4V
Advanced Options - Our defaults are optimized for the best results. We recommend you keeping the defaults unless you have a specific need.
Reset to defaults
Need help?How to Convert MP4 to AV1 Online
- Upload Your MP4 Files: Click "+ Add Files" to select MP4 files from your computer, Google Drive, or Dropbox.
- Choose Settings: Select compression method — quality preset (Highest to Lowest), target file size percentage, specific file size in MB, constant/variable bitrate, or CRF quality level. Optionally change video codec, audio codec, or resolution (preset like 1080p/720p, percentage, or custom width×height).
- Convert and Download: Click "Convert" and download your AV1 files.
Why Convert to AV1?
AV1 is the next-generation video codec developed by the Alliance for Open Media (Google, Apple, Microsoft, Netflix, Amazon, Meta). It offers the best compression available today:
| Codec | Relative Efficiency | Royalties |
|---|---|---|
| H.264 (most MP4 files) | Baseline | Licensed |
| H.265 (HEVC) | 30-50% better | Licensed |
| VP9 (WebM) | 30-50% better | Free |
| AV1 | 50-70% better | Free (royalty-free) |
A 1GB MP4 (H.264) file can become 300-500MB in AV1 at the same visual quality.
Who Uses AV1?
- YouTube — serves AV1 to supported devices for bandwidth savings
- Netflix — uses AV1 for Android streaming
- Twitch — supports AV1 for live streaming
- Discord — uses AV1 for video calls
- Google Meet — AV1 for video conferencing
Device Support (Growing)
| Device | AV1 Support |
|---|---|
| Chrome, Firefox, Edge | ✅ Since 2019-2020 |
| Safari 17+ (2023) | ✅ Supported |
| iPhone 15 Pro+ | ✅ Hardware decode |
| Android (2020+ flagships) | ✅ Most devices |
| NVIDIA RTX 40 series | ✅ Hardware encode/decode |
| AMD RX 7000 series | ✅ Hardware encode/decode |
| Older devices (pre-2020) | ❌ No hardware support |
Trade-off: Encoding Speed
Competitors like convertio.co offer CQ (Constant Quality) control in the 0-63 range for AV1 output, similar to CRF in H.264/HEVC. converter.app provides a simple 3-step workflow. convertfiles.com highlights that "AV1 is open source and supported by major browsers and streaming services, enabling efficient compression without licensing fees." XConvert offers 6 compression methods including CRF, target file size %, and variable bitrate, plus full codec and resolution control.
Trade-off: Encoding Speed
AV1 encoding is significantly slower than H.264 — typically 5-20x slower. The result is a much smaller file, but expect longer processing times.
Frequently Asked Questions
Is it free?
Yes. Completely free with no watermarks, no sign-up required, and no file count limits.
Why does AV1 encoding take so long?
AV1's superior compression comes from more complex algorithms. Hardware acceleration (NVIDIA RTX 40+, AMD RX 7000+) dramatically speeds this up, but online tools use software encoding.
Can older devices play AV1?
Devices without AV1 hardware support can use software decoding, but it's CPU-intensive. For maximum compatibility, keep H.264 (MP4).
Can I convert multiple files at once?
Yes. Upload multiple MP4 files and convert them all with the same settings.
Does it work on mobile?
Yes. Works in any modern browser on all devices — no app installation required.