Step 1: Drop your PNG files using the button above or by deposit and leave.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Receive your converted ICO files.
PNG to ICO Conversion FAQ
How do I convert PNG to ICO without losing image quality?
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Upload your PNG file, then our converter applies format-aware quality optimization for ICO output. For lossless formats (PNG, TIFF, BMP) we preserve every pixel; for lossy formats (JPG, WebP) you can tune the quality factor before download.
What sizes should the ICO contain?
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Include 16x16, 32x32, 48x48 and 256x256 and you have covered every context Windows and browsers ask for. A single ICO holds all of them, so the operating system picks the nearest match instead of resampling one size down and making it mushy. Start from a square PNG — anything else gets letterboxed or cropped. A single ICO holds several renderings of the same icon at different sizes — 16x16 through 256x256 — so the OS can pick the sharpest one.
Is anything lost converting between PNG and ICO?
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No pixel data, no. Both formats store the image without lossy compression, so the picture that comes out is identical to the one that went in and the conversion can be repeated indefinitely. What changes is file size, and which features travel — colour depth, embedded profiles, layers and animation are all supported unevenly between lossless formats. PNG uses DEFLATE compression over filtered scanlines, so every pixel survives exactly, plus a full 8-bit alpha channel.
Does PNG to ICO conversion preserve transparency?
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Transparency survives when going to PNG, WebP, TIFF, GIF, or SVG. Converting to JPG flattens the alpha channel against a white background — if you need transparency, target a transparency-aware format instead of ICO.
Will my color profile (sRGB / Adobe RGB / CMYK) survive PNG to ICO?
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Embedded ICC color profiles are read from the source PNG and re-attached to the ICO output where the format supports it (JPG, PNG, TIFF, WebP). Formats without profile support fall back to sRGB.
What about EXIF metadata when converting PNG to ICO?
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Camera EXIF (ISO, shutter, lens, GPS) is preserved by default during PNG → ICO conversion when both formats support metadata. Use the privacy option to strip metadata before download if you want to share images without geolocation.
Can I batch-convert hundreds of PNG files to ICO at once?
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Yes — drag multiple PNG files into the upload zone and we queue them in parallel. Free users get 100MB per file; Premium has no per-file cap and runs more parallel workers, so a 200-image batch typically finishes in under two minutes.
How does PNG to ICO compare to Photoshop / GIMP for the same task?
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For straightforward format conversion we run the same libpng / libjpeg-turbo / libwebp / ImageMagick pipelines a desktop editor uses, with the same quality. The difference is that desktop tools open one file at a time; we accept a batch and run them in parallel.
What resolution and dimensions will my ICO file have?
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Default behaviour is 1:1 — your ICO output has the same pixel dimensions as the source PNG. Use a separate /resize-image/ step after conversion if you need to downscale or upscale as part of the workflow.
How small can the ICO file get without visible artifacts?
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For JPG / WebP, quality 75-85 typically gets the file 60-80% smaller than the source PNG with no visible difference at normal viewing distance. For lossless targets (PNG, TIFF), expect smaller savings — usually 5-30% via better deflate / LZW compression.
Are my PNG files private during conversion?
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Yes — uploaded PNG files are processed in isolated workers and deleted within minutes. We never read, store, or share the pixel data. The full privacy policy and retention window are documented at /privacy/.
Does the PNG to ICO converter work for very large images (50MP+)?
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Yes for free up to 100MB. Premium handles larger inputs (300MB+) and exotic per-pixel depths (16-bit PNG, 32-bit float TIFF). The pipeline streams pixel rows, so memory use scales with the row count, not the total pixel count.
