Does SwingFiles upload my files to cloud storage?

No. P2P file transfers stream directly between devices via encrypted WebRTC SCTP DataChannels, and file conversions execute 100% locally in your browser via WebAssembly.

Are there file size caps or daily conversion limits?

No. Because zero cloud server bandwidth or storage is consumed, you can transfer 20GB+ files and batch-convert unlimited files free.

Same-Wi-Fi WebRTC AirDrop•3,449 Local File Operations

Swing Files Peer-to-Peer & Process Formats Locally.

Zero cloud storage costs, zero daily file limits, and zero S3 queues. Stream encrypted chunks directly between iPhone, Android, Mac, and PC at LAN speeds or batch-convert files 100% in your browser.

Peer Speed

Live during transfer

Security

AES-256-GCM

Daily Cap

UNLIMITED

1. Browser-to-Browser P2P File Swing (Same-Wi-Fi Radar & 6-Digit Room)

SCTP 64KB Chunks • 4MB Backpressure Guard

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

---

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

2. Unlimited Local Batch File Converter (With 1-Click “Convert & Swing”)

Canvas + TypeScript + fflate SIMD + WASM Workers

Local Batch File Processor

Drop Files for Local Browser Processing

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

Target Format & Engine Parameters

Output Format:

Quality (88%)

Target Cap (MB)

Compute Engine:

3,449 Local File Operations

Local Format Operations & Target-Size Workflows

Convert files, extract streams, create previews, and package archives in your browser. Each route explains what its output contains.

Target-Size & High-Volume Workflows

10MB / 25MB Discord Target

Discord Video Compressor (<10MB & <25MB)

Instant client-side H.264/VP9 two-pass bitrate targeting in FFmpeg.wasm with zero cloud uploads.

Launch Workflow

Strict <10MB Budget

Compress Any Video Under 10MB

Precision bitrate control for Slack, GitHub Issues, and standard Discord attachments.

Launch Workflow

25MB HD Attachment Cap

25MB Video Compressor (Email & Discord Basic)

High-definition 1080p MP4 compression engineered to pass strict 25MB attachment gateways.

Launch Workflow

<16MB Voice & Music Preset

WhatsApp Audio & Voice Note Compressor

Convert WAV, FLAC, and MP3 recordings into ultra-crisp Opus/AAC under 16MB.

Launch Workflow

Batch HEIC Decoder

Unlimited Bulk HEIC to JPG Converter

Convert hundreds of iPhone HEIC/HEIF photos to universal JPG or PNG locally in seconds.

Launch Workflow

LCP Speed Optimizer

WebP & AVIF Web Performance Optimizer

Cut PNG and JPG payload weights by 65–85% while preserving crisp alpha transparency.

Launch Workflow

Columnar SQL Engine

Zero-Upload Parquet to CSV / JSON Exporter

Inspect, filter, and convert multi-million-row Apache Parquet datasets in-browser.

Launch Workflow

DEFLATE Level-9 SIMD

SIMD Multi-File ZIP & GZIP Compressor

Pack documents, PDFs, and project folders into verified SHA-256 ZIP archives at native speed.

Launch Workflow

100% Local Zero-Upload Privacy

Files never touch S3 or remote servers. All bytes stay in browser RAM & disk streams.

Multi-Worker WASM + Native Engines

COOP/COEP credentialless isolation powers parallel worker conversion & SIMD archives.

1-Click Convert & Swing Chaining

Convert a batch of files and immediately beam them to your phone or PC over WebRTC.