Free, private image conversion across many formats. All processing happens locally on your PC — no uploads, no servers. Batch process, resize, smart crop, and fine-tune quality.
+1
pngquant Alternatives
pngquant is described as 'Command-line utility and a library for lossy compression of PNG images' and is a Image Optimizer in the photos & graphics category. There are more than 50 alternatives to pngquant for a variety of platforms, including Windows, Mac, Linux, Web-based and Android apps. The best pngquant alternative is File Converter, which is both free and Open Source. Other great apps like pngquant are ImageMagick, Caesium Image Compressor, Dinky and ImageOptim.
Alternatives list
94 JPEGmini alternativesJPEGmini is a patent-pending photo recompression technology, which significantly reduces the size of photographs without affecting their perceptual quality. The technology works in the domain of baseline JPEG, resulting in files that are fully compatible with any browser, photo...
Phatch is an user friendly, cross-platform Photo Batch Processor and Exif Renamer with a nice graphical user interface. Phatch handles all popular image formats and can duplicate (sub)folder hierarchies.
Cost / License
- Free
- Open Source
Alerts
- Discontinued
Platforms
- Mac
- Linux
Curtail (previously ImCompressor) is a useful image compressor, supporting PNG and JPEG file types. It support both lossless and lossy compression modes with an option to whether keep or not metadata of images. It is inspired by .
Cost / License
- Free
- Open Source (GPL-3.0)
Application types
Platforms
- Linux
- Flathub
- GNOME
- Flatpak
- Linux Mobile
Simple local image converter for Windows and Linux, built to optimize images into WebP and AVIF without upload or download steps.
+1
Minuimus is a file optimizer utility script: You point it at a file, and it makes the file smaller without compromising the file contents.
AdvanceCOMP is a collection of recompression utilities for your .ZIP archives, .PNG snapshots, .MNG video clips and .GZ files.
A
Transform your images from MB to KB effortlessly with ImageMinify! Created by a dedicated developer, this user-friendly app compresses image files while maintaining their quality, making it perfect for anyone looking to reduce file size without sacrificing clarity.
+1
PngOptimizer compresses graphics files and removes extra, unnecessary data without affecting quality. It will update PNG files or converting BMP, GIF or TGA files to the PNG format using simple drag-and-drop.
Cost / License
- Free
- Open Source
Platforms
- Windows
- Linux
- PortableApps.com
Compress hundreds of images in seconds. Everything stays on your computer. No uploads, no accounts, no subscription.
Cost / License
- Freemium
- Proprietary
Application types
Platforms
- Windows
- Online
Pngcrush is an optimizer for PNG (Portable Network Graphics) files. It can be run from a commandline in an MSDOS window, or from a UNIX or LINUX commandline.
Cost / License
- Free
- Open Source
Application types
Alerts
- Discontinued
Platforms
- Windows
- Linux
United Kingdom
Belgium
EU
Austria
Italy
Pakistan
United States
