SwingFiles
png → icoCONVERT • Local processing

Convert .PNG → .ICO

Render the source artwork or image into the target visual format. Processing happens on your device, with no file upload.

Convert .PNG → .ICO

Drop Files for Local Browser Processing

Auto-detects magic bytes • Zero daily caps • Instant ZIP & P2P Swing chaining

Target Format & Engine Parameters

CONVERT: Render the source artwork or image into the target visual format.

Compute Engine:

Technical Specifications: PNG (.png) vs ICO (.ico)

Specification ParameterSource: .PNG (PNG)Target: .ICO (ICO)
Full Format NamePortable Network GraphicsWindows Icon Resource
IANA MIME Typeimage/pngimage/x-icon
Magic Byte Signature (Hex)89 50 4E 4700 00 01 00
Compression & FidelityLossless SupportedLossless Supported
Alpha / Transparency & DepthRGBA (Alpha Transparency Supported, 8–32 bit)RGBA (Alpha Transparency Supported, 8–32 bit)
Typical Size Reduction Ratio1.8:12.5:1
OS & Platform SupportUniversal (Windows, macOS, iOS, Android, Linux, Web)Cross-Platform via SwingFiles WebAssembly Engine

Processing Steps

  1. 1. Drop .PNG Files Locally
    Choose PNG (image/png) files from your device. The browser checks their type before processing.
  2. 2. Convert Locally
    Render the source artwork or image into the target visual format.
  3. 3. Save .ICO or Swing P2P
    Download the .ico output, export a batch ZIP, or choose "Convert & Swing" to transfer it to another device.

Frequently Asked Questions

What does this PNG to ICO route produce?

Render the source artwork or image into the target visual format. The target format may have different quality or capabilities than the source.

Does the .png file leave my device?

The conversion runs in your browser. Files are not uploaded to a conversion server.

Can I process large .png files or batches?

There is no daily conversion quota. Large files and batch size depend on available browser memory and the format engine.

Reverse Pair (ICO-TO-PNG) & Related Format Conversions

Reverse: ico to png
ICO to PNGPNG to JPGPNG to JPEGPNG to WEBPPNG to AVIF

Same-Wi-Fi P2P Radar Discovery

Devices on the same Wi-Fi appear automatically below — zero codes needed

Scanning local Wi-Fi subnet… Open this page on another device to pair automatically
AES-256-GCM file key stays in the peer channel; compare fingerprints before transferringPeer-to-peer · live speed appears during transfer

Phone ↔ PC Room Pairing

VERIFY PEER
6-Digit Swing Room Code
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Drop Unlimited Files to Swing (20GB+ Direct-to-Disk Stream)

Zero cloud upload caps • 64KB chunked SCTP DataChannel • 4MB backpressure • Mobile Screen WakeLock protection

Ready for zero-cloud WebRTC SCTP streaming (64KB chunks, 4MB backpressure control).
WakeLock: STANDBY