1
Pingo
css-ig.net/pingoAlso covers image tools · same kind of website
pingo optimizes PNG, JPEG, WebP, and APNG images using lossless or lossy compression.
Alternatives
The Best GUI Alternatives in 2026
3 alternatives0 free · 1 open source
Looking for something like GUI? Here are 3 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are open source.
pinga provides a graphical interface for experimental PNG, JPEG, and APNG image optimization.
Top picks at a glance
First suggestionPingopingo optimizes PNG, JPEG, WebP, and APNG images using…Open source optionOxipngOxipng optimizes PNG and APNG files with lossless…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Pingo | — | Not stated | Web |
| 2 | Oxipng | — | Yes | Linux, macOS, Windows |
| 3 | TinyPNG | — | Not stated | Web |
All GUI alternatives
2
Also covers image tools · open source
Oxipng optimizes PNG and APNG files with lossless compression, and offers both a command-line interface and a library.
3
TinyPNG
tinypng.comAlso covers image tools
TinyPNG compresses AVIF, WebP, PNG, and JPEG images using a lossy image optimization engine.
No alternatives match this filter.
Alternatives to similar tools
TopicImage Tools · 174 sites Best-of list8 Best Free Image Compression Tools in 2026Best-of listBest Free Screenshot Tools for Clear Captures and Markup ListingGUI details
What is the best alternative to GUI?
Based on features, tags and platforms, the closest alternatives to GUI are Pingo, Oxipng, and TinyPNG.
Are there open-source alternatives to GUI?
Yes: Oxipng.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative