SwingFiles
raf → heifCONVERT • Local processing

Convert .RAF → .HEIF

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

Convert .RAF → .HEIF

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: RAF (.raf) vs HEIF (.heif)

Specification ParameterSource: .RAF (RAF)Target: .HEIF (HEIF)
Full Format NameFujifilm Raw ImageHigh Efficiency Image File Format
IANA MIME Typeimage/x-fuji-rafimage/heif
Magic Byte Signature (Hex)46 55 4A 49 46 49 4C 4D66 74 79 70 6D 69 66 31
Compression & FidelityLossless SupportedLossless Supported
Alpha / Transparency & DepthRGB / YCbCr (24–48 bit, Opaque)RGB / YCbCr (24–48 bit, Opaque)
Typical Size Reduction Ratio1.7:116:1
OS & Platform SupportCross-Platform via SwingFiles WebAssembly EngineCross-Platform via SwingFiles WebAssembly Engine

Processing Steps

  1. 1. Drop .RAF Files Locally
    Choose RAF (image/x-fuji-raf) 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 .HEIF or Swing P2P
    Download the .heif output, export a batch ZIP, or choose "Convert & Swing" to transfer it to another device.

Frequently Asked Questions

What does this RAF to HEIF 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 .raf file leave my device?

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

Can I process large .raf 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 (HEIF-TO-RAF) & Related Format Conversions

RAF to PNGRAF to JPGRAF to JPEGRAF to WEBP

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