For photographic images, JPG is widely compatible. PNG is useful when transparency or lossless storage matters. WebP can be efficient for modern websites. After conversion, compare the result with the original rather than choosing the smallest file automatically.
Why this workflow matters
Image format and file size affect compatibility, loading speed, upload limits, and visual quality. This tool gives you a quick way to prepare a file for a specific destination.
Recommended workflow
- 1Choose the source image and identify the destination requirement.
- 2Select the output format and compression settings that fit the use case.
- 3Compare the preview or resulting file with the original.
- 4Download the converted file and verify its dimensions and appearance before replacing the original.
Practical tips
- JPG for many photographic images
- PNG when transparency or lossless output is important
- WebP when efficient web delivery is supported
Important limitations
- Compression is a trade-off. A smaller file may have lower visual quality, while lossless or high-quality settings may retain more detail but produce a larger file.
Use the tool: Open Image Compressor & Converter →