Question 1

How to convert all images in a folder to WebP using Optimizt?

Accepted Answer

Use the command 'optimizt --webp path/to/directory' to recursively create WebP versions for all raster images in that directory, as shown in the usage examples. You can combine flags like --avif for multiple formats and use --output to specify a different directory.

Question 2

Optimizt vs squoosh for image compression?

Accepted Answer

Optimizt is a CLI tool focused on batch processing and integration into development workflows, while squoosh is a web-based GUI for single-image optimization with visual comparisons. Optimizt is better for automating optimizations in CI/CD, but squoosh offers more interactive control for individual images.

Question 3

Can Optimizt resize images while optimizing?

Accepted Answer

No, Optimizt does not include resizing features; it only handles compression and format conversion using libraries like sharp and svgo. For resizing, you would need to use other tools or pre-process images before optimization.

Question 4

How to fix the Optimizt guetzli installation error?

Accepted Answer

Ensure the npm 'ignore-scripts' option is disabled, as Guetzli requires post-install scripts. The README's troubleshooting section links to an issue detailing this, and you might need to check your npm configuration or manually install dependencies.

Question 5

Does Optimizt work with Docker on Mac?

Accepted Answer

Yes, Optimizt provides a pre-built Docker image that can be run on Mac by mounting directories, as shown in the Docker run example: 'docker run --rm --volume $(pwd):/src 343dev/optimizt --webp ./image.png'. This avoids native installation issues.

Question 6

What's the difference between lossy and lossless in Optimizt?

Accepted Answer

Lossy mode (default) balances size reduction and quality loss, while lossless mode uses tools like Guetzli for JPEG to maximize quality at the expense of larger files. For AVIF/WebP, lossless means no quality loss, but the README warns that repeated lossless JPEG optimization can degrade quality.

optimizt

What is optimizt?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions