mozjpeg
ImageOptim
mozjpeg | ImageOptim | |
---|---|---|
19 | 83 | |
5,361 | 8,940 | |
0.5% | 0.6% | |
6.2 | 7.9 | |
5 months ago | 6 months ago | |
C | HTML | |
GNU General Public License v3.0 or later | GNU General Public License v3.0 only |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
mozjpeg
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WebP is so great except it's not
[2] https://github.com/mozilla/mozjpeg
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It's the future – you can stop using JPEGs
It would be nice if the author would add mozjpeg[1] to the comparison. At certain sizes, it can produce smaller sizes than WebP, and because it is still a jpeg, it has a much better compatibility story, which the author alluded to.
[1]https://github.com/mozilla/mozjpeg
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Random Code Inspiration Volume 2
image-shrinker is a simple, easy to use open source tool for shrinking images. Under the hood it uses pngquant, mozjpg, SVGO, and gifsicle. You can also install these tools individually if you need to compress some images. I often use pngquantafter exporting PNGs for web projects from Figma or similar tools. I literally run it like this:
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JPEG XL: How It Started, How It’s Going
> MozJPEG is a patch for libjpeg-turbo. Please send pull requests to libjpeg-turbo if the changes aren't specific to newly-added MozJPEG-only compression code.
https://github.com/mozilla/mozjpeg#mozilla-jpeg-encoder-proj...
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Why there may never be a libjpeg-turbo 3.1
FWIW, Mozilla has been maintaining their own fork for quite a while now[1]
AFAIK most Linux Distros have been using libjpeg-turbo as a drop-in replacement for libjpeg, after some drama in ~2010 where libjpeg came under new management, decided to break ABI/API several times over and add incompatible, non-standard format extensions[2].
[1] https://github.com/mozilla/mozjpeg
[2] https://en.wikipedia.org/wiki/Libjpeg#History
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Are all JPEG compression implementations the same?
No.
See https://github.com/mozilla/mozjpeg
Also, there is a fairly big problem with JPG that the ‘quality’ setting is not calibrated. That is you might look at one image and think it looks fine (which is subjective, depends on what you want to use the image for…) with a quality of 60%, but then you compress a million images at that rate, delete the originals, then you find that many of them look really awful. Not only that but there are images you could have compressed more and still been happy with the output.
If you are publishing images for the web consider using WebP which is consistently better, well supported now, and has a calibrated quality knob.
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reduce the size of a bunch of jpg
https://github.com/mozilla/mozjpeg's cjpeg tool is the command line version of the mozjpeg library, itself a fork of libjpeg-turbo. Mozjpeg performs lossless JPEG optimization. There are plenty of others out there.
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Lossy Image Compression with Dithering
Use the Mozilla JPEG Encoder, which implements several tricks for smaller file size / better visual quality. The result is still JPEG standard compatible that other software can decode.
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Fighting JPEG Color Banding
Guetzli was already mentioned and roughly does what you are talking about.
MozJPEG [1] includes several quantization tables that are optimized for different contexts (see the quant-table flag and source code for specific tables[2]), and the default quantization table has been optimized to outperform the recommended quantization tables in the original JPEG spec (Annex K).
It's also worth noting that MozJPEG uses Trellis quantization [3] to help improve quality without a per-image brute force quantization table search. Basically rather than determining an optimal quantization table for the image, it minimizes rate distortion on a per-block level by tuning the quantized coefficients.
[1] https://github.com/mozilla/mozjpeg
[2] https://github.com/mozilla/mozjpeg/blob/5c6a0f0971edf1ed3cf3...
[3] https://en.wikipedia.org/wiki/Trellis_quantization
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FFmpeg now supports JPEG XL
They're still being used. A newer, optimized JPEG encoder, mozJPEG[0], seems to use progressive encoding by default. I suspect with faster internet speeds, most images download and decode so fast that the cool 'enhance' animation doesn't happen anymore.
[0] https://github.com/mozilla/mozjpeg
ImageOptim
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How to improve page load speed and response times: A comprehensive guide
Compressing images: This technique reduces image size without compromising quality. You can achieve this using various image compression tools like TinyPNG or ImageOptim. These tools are specifically designed to manage multiple image formats and compression methods. They help reduce image files, resulting in less data transfer from the server to the user's device. It is advisable to compress images before uploading them to the web server.
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Optimizing Images for Developer Blogs
ImageOptim: ImageOptim is a free and open-source tool that can be used to compress JPEG, PNG, and GIF images.
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Am I missing out on something?
Currently installed apps: Alfred for searching applications/files and launching websites quickly i Stat menus to monitor my hardware Geo Gebra Classic 6 for school Rectangle for better window management Obsidian for note taking Resolve for video editing and all utilities that come with it Bitwarden as my go-to password manager Microsoft Word, Excel PowerPoint and Teams for school Dropover for moving or sending more files quickly Gestimer for work sessions iTerm as a better terminal than the built-in one Python and all things that come with the install Parallels Desktop and all stuff that comes with the install for running windows only applications Visual Studio Code for coding Blender for 3D Image Optim CurseForge for modded Minecraft Minecraft Find any file Mac Updater 3; would love to have the pro version
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The 10 tools I install on every new Mac I get
ImageOptim - file resizing and optimising images, even on the command line (free)
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A collection of useful Mac Apps
ImageOptim - Price: Free Image optimizer for Mac that allows you to reduce the file size of your images without losing quality, and strip the metadata.
- Image size reduction
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Exporting images under 200kb without ruining quality?
If you're on a Mac, use ImageOptim to optimize your images: https://imageoptim.com/mac If you're on Windows, I imagine there's a similar app
- Ho to create a light template
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How to search for pictures without people in them
Bonus points: before you re-import them drop the exports folder into imageoptimfor the most efficient lossless compression imaginable.
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Just want to share some of the apps I have found that have made my life better
ImageOptim — shrink those file sizes!
What are some alternatives?
squoosh - Make images smaller using best-in-class codecs, right in the browser.
oxipng - Multithreaded PNG optimizer written in Rust
guetzli - Perceptual JPEG encoder
wazero - wazero: the zero dependency WebAssembly runtime for Go developers
sharp - High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, AVIF and TIFF images. Uses the libvips library.
image-actions - A Github Action that automatically compresses JPEGs, PNGs and WebPs in Pull Requests.
notion-auto-pull - Bash script to automatically download a notion workspace
bimg - Go package for fast high-level image processing powered by libvips C library
alfred-calculate-anything - Alfred Workflow to calculate anything with natural language
jpegoptim - jpegoptim - utility to optimize/compress JPEG files
devdocs - API Documentation Browser