What is a multi-resolution .ico file?
A proper .ico file packages several resolution versions of your icon (16px for browser tabs, 32px for desktop shortcuts, 48px for taskbars) into a single file.
Chuyển PNG sang ICO trực tuyến — Tạo biểu tượng web
Build valid multi-resolution Windows favicon .ico files.
Drop PNG images here to convert to ICO
Generate multi-size Windows favicons and application icons (.ico)
Xem trước hình ảnh
Cách sử dụng Tạo Favicon ICO từ PNG
1
Chọn và tải lên
Upload a square PNG logo, icon, or brand mark (recommended 512×512).
2
Cấu hình & Xem trước
Select the embedded frame resolutions (16×16, 32×32, 48×48).
3
Quy trình & Tải xuống
Click 'Generate .ICO Favicon' to download your standardized favicon.ico file.
Kiến trúc kỹ thuật và quyền riêng tư phía máy khách
Processing Engine
Browser Canvas 2D & Binary Transcoder
Privacy Model
100% In-Memory Sandbox · Zero Server Uploads
Format Standards
PNG, JPEG, WebP, SVG, ICO Specifications
Execution Speed
Zero Network Latency · Instant Local Output
Frequently Asked Questions
What source image should I upload for the best favicon?
Upload a square (1:1 aspect ratio) transparent PNG of at least 256×256 or 512×512 pixels with simple, recognizable shapes.
Is the generated .ico compatible with all web browsers and Windows?
Yes. The output matches standard Microsoft ICO binary format with embedded PNG frames supported by all browsers and Windows 10/11.