External
TinyPNG
Drag, drop, done: smart lossy compression for web images.
TinyPNG applies smart lossy compression to PNG, JPEG and WebP images, often cutting file size dramatically with little visible difference. The free web version lets you compress batches of images within published size limits, no account needed.
Best for: Use this when you want good-enough compression on a batch of images with zero settings to think about.
Pros
- Excellent compression results with zero configuration
- Batch upload in the free web version
- Plugins and an API for build pipelines
Cons
- Images are uploaded to their servers
- Free tier caps the number and size of images per batch
- No quality slider, you take what it gives
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