CompressBox Support
Private, offline image and video compression for macOS.
Getting Started
Drag images or videos into CompressBox, or add them with the file picker. Processing happens on your Mac. Completed files are saved locally to your Downloads folder.
Image Compression
Choose a quality level to balance size and detail. Lossless compression preserves original pixels, so the reduction can be smaller. Choosing a target size lets CompressBox adjust image encoding to pursue that limit.
Video Compression
Videos keep their original dimensions and frame rate by default. You can adjust the compression quality for each video before starting.
Troubleshooting
- Keep the original file available until compression finishes.
- Already optimized files may not become much smaller without quality loss.
- If output size grows, try a lower quality setting or retain the original format.
- For a failed task, remove the item and add the original file again.
Feedback
For a reproducible issue or feature request, please open a support request and include your macOS version, CompressBox version, source format, selected settings, and a short description.
Read the CompressBox Privacy Policy.
CompressBox 技术支持
适用于 macOS 的本地图片与视频压缩工具。
使用方法
将图片或视频拖入 CompressBox，或通过文件选择器添加。所有处理均在你的 Mac 本机完成，压缩后的文件保存在“下载”文件夹。
图片压缩
压缩质量用于平衡文件体积和画质。无损压缩保留原始像素，因此可节省的体积可能较少。选择目标体积后，CompressBox 会自动调整图片编码以尽量达到该体积。
视频压缩
视频默认保留原始尺寸和帧率。开始压缩前，可以为每个视频单独调整压缩质量。
常见问题
- 请在压缩完成前保留原始文件。
- 已高度优化的文件在不降低质量的前提下可能无法显著变小。
- 若输出体积变大，请尝试降低质量设置或保留原始格式。
- 若任务失败，请移除该项目后重新添加原始文件。
反馈问题
如需反馈问题或提出建议，请提交支持请求，并附上 macOS 版本、CompressBox 版本、文件格式、所选设置和问题说明。
查看 CompressBox 隐私政策。