Flatsonar

Image Optimizer

by Gijs Goudzwaard

Shrink images losslessly

Sandboxed Verified creator MIT v0.6.0

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Screenshot 1 of Image Optimizer Screenshot 2 of Image Optimizer Screenshot 3 of Image Optimizer

About

Image Optimizer makes PNG and JPEG files smaller without changing how they look. It rewrites the files you pick in place, so the file you selected is the one that gets smaller.

The compression is lossless, which means the pixels come out identical and nothing is re-encoded at a lower quality. What comes off is whatever the encoder left on the table, so screenshots and interface images usually gain the most and photos straight out of a camera the least.

Features:

  • Compress PNG and JPEG images without losing quality
  • Optimize a whole batch at once, several files at a time
  • Works offline, with no account and nothing uploaded
  • Keeps the colour profile and the orientation, so images still look the way they did
  • Keeps modification times, so a library sorted by date stays in order
  • Quit quickly by pressing Ctrl + Q

Permissions

Everything this app can reach outside its sandbox. Nothing here weakens it.

  • inter-process communication (needed for X11)
    --share=ipc
  • X11 display, only when Wayland is unavailable
    --socket=fallback-x11
  • Wayland display
    --socket=wayland
  • GPU acceleration
    --device=dri

Who publishes this

The creator demonstrably controls this app id: Flathub verification, the hosting account owns the namespace, or a well-known file on their domain.

  • verified on Flathub: the developer proved they control this app id
    publisher:flathub

Maintenance

Recent activity on the upstream repository, or built and reviewed by Flathub.

No staleness signals: recent activity, or built and reviewed by Flathub.