Cut AV1 Video

How to Cut AV1 Video

1. Upload Your AV1 File — Click "Choose Files" or drag and drop your AV1 video file. Only .av1 files are accepted.
2. Set Cut Points — Under Trim, select "Time Range" and enter a Start Time and Duration in seconds or HH:MM:SS.sss format.
3. Adjust Quality (Optional) — Under File Compression, choose from: Quality Preset (Highest through Lowest), Target File Size % (1-100% slider with Smart Scaling), Specific File Size (MB/KB), Constant Bitrate, Variable Bitrate, Constant Quality (CRF), or Constraint Quality.
4. Change Codec (Optional) — Under Video Codec, the default is AV1. Under Audio Codec, the default is Opus.
5. Adjust Resolution (Optional) — Under Video Resolution, keep the original or choose Preset Resolutions (4K, 1080p, 720p, etc.), Fixed Resolutions, Resolution Percentage, or custom Width/Height/Width×Height.
6. Cut & Download — Click "Convert" and download your cut AV1 file.

Why Cut AV1 Video?

AV1 is a modern, royalty-free video codec developed by the Alliance for Open Media (Google, Mozilla, Netflix, Amazon, and others). It offers roughly 30% better compression than H.265/HEVC. Cutting AV1 video is useful for extracting specific scenes or clips from AV1 recordings, removing intros, credits, or unwanted sections, preparing clips for sharing on platforms that support AV1 (YouTube, Netflix), and reducing file size by removing unnecessary footage.

AV1 Codec Details

Feature	AV1
Developer	Alliance for Open Media
License	Royalty-free
Compression	~30% better than H.265
Default audio	Opus
CRF default	30 (range 0-63)
Browser support	Chrome, Firefox, Edge, Safari 17+
Best for	Streaming, web video, archival

Common Cut Scenarios

Goal	Start Time	Duration
Remove 30s intro	00:00:30	(remaining length)
Extract 2-minute clip	00:05:00	00:02:00
Keep first 10 minutes	00:00:00	00:10:00

What is the default CRF for AV1?

The default CRF (Constant Rate Factor) for AV1 is 30, with a quality range of 0-63 (lower = higher quality). This is different from H.264/H.265 where CRF typically ranges 0-51. CRF 30 for AV1 produces good quality at efficient file sizes.

Why is Opus the default audio codec?

Opus is the standard audio codec paired with AV1 — both are royalty-free and developed by the open media community. Opus provides excellent quality at low bitrates, making it ideal for streaming alongside AV1 video.

Will cutting reduce quality?

Cutting with re-encoding may introduce minor quality changes. Use Quality Preset "Highest" or Constant Quality (CRF) with a low value to minimize quality loss.

What is the difference between Cut and Trim?

On XConvert, "Cut" and "Trim" both extract a segment using Start Time and Duration. The Trim AV1 page provides the same functionality.

Can I cut and compress at the same time?

Yes. Set cut points under Trim, then choose a compression method under File Compression. Both are applied in a single pass.