Video Quality Adjust

Video Quality Adjust | Online Free Tool | Elysia Tools

Tool usage guide

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Category: Media
Input types: file, select, number, range
Output type: file
Sample coverage: 4
API ready: Yes

Overview

The Video Quality Adjust tool allows you to optimize and compress video files by adjusting the Constant Rate Factor (CRF), encoding speed presets, and resolution scaling. You can choose from predefined quality levels or customize settings like content tuning and output formats to balance file size and visual fidelity.

When to use

When you need to reduce video file sizes for faster web uploads or email sharing without sacrificing noticeable visual quality.
When you want to optimize video playback performance by scaling down the resolution and applying specific content tuning like animation or zero-latency streaming.
When you need to convert video formats while fine-tuning the compression ratio using custom CRF values and encoding speed presets.

How it works

1Upload your video file in any supported video format.
2Select a quality preset or configure custom CRF values, encoding speeds, content tuning, and resolution scaling.
3Choose your desired output format, such as MP4, WebM, MKV, AVI, or MOV.
4Process the video to apply the compression and download the optimized file.

Use cases

Compressing large raw video files into compact MP4s for social media uploads.
Optimizing animated videos using the animation tuning preset to preserve clean lines and flat colors.
Downscaling 4K or 1080p footage to 50% resolution to save storage space on local drives.

Examples

1. Optimizing Web Video for Fast Loading

Web Developer

Background

A developer needs to host a background video on a landing page, but the original file is too large and slows down page load times.

Problem

Reduce the video file size significantly while maintaining acceptable visual quality and converting it to WebM.

How to use

Upload the MP4 video, set the Quality Preset to Medium Quality (CRF 28), set the Resolution Scale to 75%, and select WebM as the output format.

qualityPreset: medium, scalePercent: 75, outputFormat: webm

Outcome

The video file size is reduced by over 60%, allowing the landing page to load quickly while keeping the background video visually clear.

2. Compressing Animation Portfolio Clips

Motion Designer

Background

An animator wants to share high-quality portfolio clips on a platform with strict file size limits.

Problem

Compress 2D animation clips without losing sharp lines or introducing blocky compression artifacts.

How to use

Upload the animation video, select Custom Settings, set the Custom CRF to 20, choose the 'veryslow' encoding preset for maximum compression, select the 'animation' content tune, and export as MP4.

FAQ

What is CRF?

Constant Rate Factor (CRF) is an encoding mode that adjusts the data rate dynamically to maintain a consistent visual quality level throughout the video.

How does the encoding speed preset affect the output?

Slower presets like 'veryslow' provide the best compression and smallest file sizes but take longer to process, while faster presets encode quickly but result in larger files.

What output formats are supported?

You can export your adjusted videos to MP4, WebM, MKV, AVI, or MOV formats.

Can I resize the video resolution?

Yes, you can use the Resolution Scale slider to scale down the video resolution from 100% down to 10% of its original size.

What does the Content Type Tune option do?

It optimizes the encoder settings for specific video types, such as animation, film grain, or low-latency streaming.

qualityPreset: custom, customCrf: 20, customPreset: veryslow, tune: animation, outputFormat: mp4

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Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Overview

When to use

How it works

Use cases

Examples

1. Optimizing Web Video for Fast Loading

2. Compressing Animation Portfolio Clips

FAQ

Video Samples

Video AV1 Samples

Video H.264 Samples

Video H.265 Samples

Convert GIF to WebM

Convert MP4 to GIF

Video to GIF Optimized

Convert GIF to MP4

Video Container Conversion with Deliberate Transcode Control