16px
16×16
32px
32×32
48px
48×48
About this tool
Online ICO converter — upload PNG, JPG, or WebP and generate a standard ICO file with selectable sizes (16×16 to 256×256). Uses Canvas API to resize and builds the ICO binary format client-side.
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Frequently Asked Questions
- What is ICO Converter?
- Online ICO converter — upload PNG, JPG, or WebP and generate a standard ICO file with selectable sizes (16×16 to 256×256). Uses Canvas API to resize and builds the ICO binary format client-side. This tool is part of the Media Tools collection on ToolNext.
- How do I use ICO Converter?
- Upload or drag-and-drop your file into the designated area, select processing options, and click execute. Once done, download the result file directly. All processing happens locally in your browser — nothing is uploaded to a server.
- Does ICO Converter compress files or reduce quality during processing?
- ICO Converter maintains original quality by default. If compression options are available, you can manually adjust quality parameters to balance file size and fidelity — you're always in full control.
- What file formats does ICO Converter support? What's the maximum file size?
- ICO Converter supports all mainstream media file formats. Since processing happens locally in your browser, the file size limit depends on your device's available memory — typically files up to several tens of MB work smoothly.
- Is ICO Converter free to use?
- Yes, ICO Converter is completely free. All tools on ToolNext are provided free of charge — no registration required, no ads, and no hidden fees.
- Is my data safe?
- Absolutely. ICO Converter processes all data locally in your browser. No data is ever sent to any server. Your data is cleared when you close the page.