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, compress, or enhance your video files by adjusting the Constant Rate Factor (CRF) and encoding speed presets. Whether you need lossless quality preservation or high compression to reduce file size, you can customize the resolution scale, content tuning, and output format to match your exact playback or streaming requirements.

When to use

When you need to compress large video files to save storage space or bandwidth without sacrificing noticeable visual quality.
When you require lossless video archiving to preserve original master recordings for future editing.
When you need to scale down video resolution and adjust encoding presets to optimize files for fast web streaming or mobile playback.

How it works

1Upload your video file in any standard video format.
2Select a predefined quality preset ranging from Lossless to Low Quality, or choose Custom Settings to manually set the CRF value and encoding speed.
3Optionally adjust the resolution scale percentage, select a content-specific tuning option, and choose your preferred output format.
4Process the video to download the optimized file with your exact quality and compression configurations.

Use cases

Compressing raw camera footage into highly compressed MP4 files for quick sharing via email or messaging apps.
Preparing high-fidelity animation clips using the animation tune and high quality preset to maintain sharp lines and vibrant colors.
Downscaling 4K video files to 50% resolution with a medium CRF to optimize them for fast-loading web backgrounds.

Examples

1. Optimizing Animation for Web Streaming

Web Developer

Background

A web developer needs to embed a short cartoon animation on a landing page. The original file is too large, causing slow page load times.

Problem

Reduce the file size of the animation while keeping the vector-like lines sharp and exporting it to a web-friendly WebM format.

How to use

Upload the animation video, select the 'High Quality (CRF 18)' preset, set the Content Type Tune to 'Animation', scale the resolution to 80%, and select WebM as the output format.

Quality Preset: High Quality (CRF 18), Content Type Tune: Animation, Resolution Scale: 80%, Output Format: WebM

Outcome

The animation is compressed to a fraction of its original size with crisp edges, loading instantly on the landing page.

2. Lossless Archiving of Raw Footage

Video Editor

Background

A video editor wants to transcode and archive a raw MOV video clip without losing any visual data before archiving it to cold storage.

Problem

Ensure zero quality loss during the transcoding process while converting the container to MKV.

How to use

FAQ

What is CRF?

CRF stands for Constant Rate Factor, a setting that controls video quality by adjusting compression dynamically to maintain visual consistency.

How does the encoding speed preset affect the output?

Slower presets like 'veryslow' provide the best compression efficiency (smaller file size at the same quality) but take longer to process, while faster presets process quickly but yield larger files.

Can I scale down the video resolution?

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

What does the 'Tune' option do?

It optimizes the encoder settings for specific content types, such as 'animation' for cartoons, 'film' for movies, or 'zerolatency' for fast streaming.

What output formats are supported?

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

Quality Preset: Lossless (CRF 0), Encoding Speed Preset: Slower, Output Format: MKV

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Inputs

Result

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 Animation for Web Streaming

2. Lossless Archiving of Raw Footage

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

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