Concurrency (auto)
Concurrency is now selected automatically using your system resources (logical cores − 1, clamped). This avoids exposing risky settings that can cause OOM on low-RAM devices.
Apply preset as
Selecting a resolution preset will apply it according to the chosen mode:
- Max width — sets max width to the preset width and leaves max height unset; images are scaled to that width preserving aspect.
- Max height — sets max height to preset height and leaves width unset; images are scaled to that height preserving aspect.
- Max dimensions — sets both and fits the image inside the box (no crop).
- Exact — forces images to be exactly WxH (stretch or crop depending on mode).
Other tips
- Enable "Allow upscale" if you want small images enlarged to meet the preset.
- 'Include originals' increases ZIP size — use only when necessary.
Privacy
All processing is client-side — files remain on your device.