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Local processing has no fixed file-size limit and depends on browser memory. Server limits: video 100 MB, other files 10 MB · Up to 5 files per batch
No registration · Free to useWhen to use this tool
ICO is an icon container; inspect small-size readability and the exported icon dimensions. PNG suits screenshots and transparent graphics with lossless pixel compression.
Quality and output
PNG output preserves the decoded raster without another lossy image encoding step. It cannot recover detail missing from JPG or lossy WebP, and it is not guaranteed to be smaller.
How to use
- Upload a valid ICO file.
- Run the conversion to PNG.
- Download the result and check it before replacing your original.
Before you download
ICO is an icon container; inspect small-size readability and the exported icon dimensions.