MOV to AV1 Converter

How to Convert MOV to AV1 Online

1. Upload Your MOV File: Drag and drop or click "Add Files" to select MOV files. iPhone recordings, QuickTime exports, screen captures, and ProRes camera footage all work. Batch conversion is supported — drop in an entire folder.
2. Pick Quality and Bitrate Mode: Output is AV1 video, typically inside an MP4 wrapper. Pick a Quality Preset (Highest → Lowest), target a percentage of the original size, set an exact file size in MB, or fine-tune the AV1 CRF (range 0-63 — 23 = visually lossless, 30 = balanced default, 36 = small). Constant and variable bitrate modes are also available if you need a specific kbps target.
3. Resize or Trim (Optional): Pick a Resolution Preset (4320p / 2160p / 1440p / 1080p / 720p / 480p / 360p / 240p / 144p), enter a custom width × height, scale by percentage, or trim with a start time + duration in HH:MM:SS.sss format. Audio codec defaults to Opus or AAC depending on container.
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.

Why Convert MOV to AV1?

MOV is Apple's QuickTime container, common from iPhones, iPads, Macs, and pro camera workflows. The video inside is usually H.264, HEVC, ProRes, or DNxHD — codecs that produce large files relative to what AV1 can do. AV1, finalized in 2018 by the Alliance for Open Media (Google, Apple, Microsoft, Netflix, Amazon, Mozilla), is roughly 30-50% more efficient than H.264 and ~20% more efficient than H.265 at the same visual quality, and it's royalty-free for any commercial use. Common reasons to convert MOV → AV1:

• Shrinking iPhone and Mac recordings for archival — A 4K iPhone clip in HEVC MOV can drop from ~1 GB to 400-600 MB AV1 with no visible quality loss. A ProRes MOV from a Mac screen recording or pro camera can shrink 5-10× because ProRes is an editing codec, not a delivery codec.
• Royalty-free streaming and embedding — H.264 and HEVC sit inside MPEG-LA / Access Advance patent pools. AV1 is unambiguously royalty-free, which matters for paid platforms, ad-supported streaming, and apps shipping bundled video.
• Aligning with where streaming is heading — YouTube, Netflix, Twitch, Vimeo, and Meta all encode in AV1 today. Apple added AV1 hardware decode starting with iPhone 15 Pro and the M3 Macs (2023), so a MOV-to-AV1 archive plays natively on the latest Apple devices and most modern Android phones, Chromebooks, and smart TVs.
• HTML5 <video> and modern browser playback — MOV does not play in Chrome, Firefox, or Edge. AV1 in MP4 plays directly in Chrome, Firefox, Edge, and Safari 17+ (macOS Sonoma / iOS 17). See also MOV to MP4 when you need an H.264 fallback for older browsers.
• Cloud storage and backup costs — Re-encoding a multi-year iPhone library or QuickTime archive to AV1 typically halves the storage footprint, useful for iCloud, Backblaze, S3 Glacier, and other services priced per GB.
• Future-proofing source files for re-edits — If you keep the original MOV, an AV1 working copy is small enough to ship to collaborators and revisit later without re-downloading multi-GB masters.

MOV vs AV1 — Format Comparison

AV1 Quality / CRF Quick Guide

Frequently Asked Questions

What container will my AV1 output use?

XConvert wraps the AV1 stream in an MP4 container by default — AV1-in-MP4 is supported by Chrome, Firefox, Edge, Safari 17+, VLC, MPV, and most modern players. If you prefer AV1 inside MKV or WebM instead, see MOV to MKV or MOV to WebM for those output paths.

Why is AV1 encoding so much slower than H.264 or HEVC from my MOV?

AV1 uses substantially more complex tools — larger block partitions, more intra prediction modes, refined motion estimation — to squeeze more compression out of every frame. In practice that means AV1 encoding is often 5-10× slower than H.264 at comparable quality. The trade-off is a much smaller output file. For a one-off archive conversion the wait is usually worth it; if you just need a quick share, MOV to MP4 with H.264 finishes much faster.

Will the AV1 file actually be smaller than my HEVC iPhone MOV?

Usually yes, but the gap is smaller than against H.264. HEVC (the default for iPhones since the iPhone 7 / iOS 11) is already efficient — AV1 typically lands ~15-25% smaller than HEVC at the same quality. Against an H.264 MOV (older iPhones, screen recordings, exports from many apps), AV1 is commonly 30-50% smaller. ProRes MOVs shrink dramatically — often 5-10× — because ProRes is an intra-frame editing codec.

Can my devices actually decode AV1?

Hardware AV1 decode is widespread on recent silicon but not universal. Devices that handle AV1 in hardware: Intel 11th-gen+ CPUs and Arc GPUs, NVIDIA RTX 30/40, AMD RDNA2+, Apple M3 / iPhone 15 Pro and newer, Snapdragon 8 Gen 2 and newer, most 2022+ smart TVs. Older devices fall back to software decode, which is fine up to 1080p on a modern desktop CPU but stutters at 4K. If you need universal playback today, MOV to MP4 with H.264 is the safer choice.

Should I pick AV1 or HEVC for an iPhone MOV archive?

AV1 if your priority is the smallest possible files and royalty-free licensing — best for cloud-stored archives, web embedding on your own site, and future-proofing. HEVC if you need wider device support today (every Apple device since 2017, most 2018+ smart TVs, game consoles) and don't want to wait through a slow encode. AV1 wins on size and licensing; HEVC wins on existing playback compatibility outside the latest hardware.

Will the audio survive the conversion?

Yes. The MOV's AAC, AC-3, or ALAC audio is decoded and re-encoded to Opus (when wrapped in MKV / WebM) or AAC (in MP4). Audio quality is preserved at typical bitrates — Opus 96-128 kbps is transparent for most music and dialog. Multi-channel surround tracks are downmixed to stereo by default unless you change the audio codec settings explicitly.

Can I trim or resize the MOV while converting to AV1?

Yes. The trim section accepts start time + duration in seconds (12.5) or HH:MM:SS.sss format (00:01:30.500) — useful for cutting unwanted footage before an expensive AV1 encode. Resolution presets cover 4320p / 2160p / 1440p / 1080p / 720p / 480p / 360p / 240p / 144p, plus custom width × height and percentage scaling. Trimming and downscaling first cuts encoding time significantly.

What's the file size limit?

There is no fixed cap. Convertio limits MOV uploads to 100 MB on the free tier and CloudConvert imposes its own quotas; XConvert handles large MOV files including multi-GB 4K iPhone recordings and ProRes captures. Conversion runs on our servers, so the practical limit is upload size and connection speed and your patience for the upload. Batch jobs have no quantity limit either.

Can I convert AV1 back to MOV or MP4?

Yes — see AV1 to MP4 for the reverse direction. Useful when you need to hand an AV1 archive to an editor who works in Final Cut or Premiere, where AV1 import support is still limited compared to H.264 or HEVC.