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.
온라인PNG ICO변환기 — 멀티 사이즈 파비콘 만들기
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)
이미지 미리보기
사용 방법 Favicon ICO생성기
1
선택 및 업로드
Upload a square PNG logo, icon, or brand mark (recommended 512×512).
2
구성 및 미리 보기
Select the embedded frame resolutions (16×16, 32×32, 48×48).
3
처리 및 다운로드
Click 'Generate .ICO Favicon' to download your standardized favicon.ico file.
기술 아키텍처 및 클라이언트 측 개인정보 보호
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.