在线工具
TinyPNG
Compress and convert images before publishing website covers or product screenshots.
Detailed overview
Why bookmark it
TinyPNG compresses and converts images. It is useful before publishing covers or screenshots.
Suggested comparison
- Start with a non-sensitive screenshot and record its size.
- Download the compressed copy.
- Compare at the same display size, especially small text, gradients and transparent edges.
Limits
At review time, the free web uploader listed 20 images per batch and 5 MB per image. Paid web plans and the API have separate rules. Compression is lossy; savings vary. Consider whether an image is appropriate to upload to a third-party service.
Reviewed October 4, 2026 against official documentation. Examples are suggested workflows, not a completed hands-on test. Features and limits may change.
Sources: 官方压缩工具
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