SwingFiles
3gp → webmCONVERT • Local processing

Convert .3GP → .WEBM

Transcode the video and audio streams into the target media format. Processing happens on your device, with no file upload.

Convert .3GP → .WEBM

Drop Files for Local Browser Processing

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

Target Format & Engine Parameters

CONVERT: Transcode the video and audio streams into the target media format.

Compute Engine:

Technical Specifications: 3GP (.3gp) vs WEBM (.webm)

Specification ParameterSource: .3GP (3GP)Target: .WEBM (WEBM)
Full Format Name3GPP Mobile MultimediaWebM VP9/AV1 Video
IANA MIME Typevideo/3gppvideo/webm
Magic Byte Signature (Hex)66 74 79 70 33 671A 45 DF A3
Compression & FidelityLossy / PerceptualLossy / Perceptual
Alpha / Transparency & DepthYUV 4:2:0 / 10-bit HDR StreamYUV 4:2:0 / 10-bit HDR Stream
Typical Size Reduction Ratio30:128:1
OS & Platform SupportCross-Platform via SwingFiles WebAssembly EngineCross-Platform via SwingFiles WebAssembly Engine

Processing Steps

  1. 1. Drop .3GP Files Locally
    Choose 3GP (video/3gpp) files from your device. The browser checks their type before processing.
  2. 2. Convert Locally
    Transcode the video and audio streams into the target media format.
  3. 3. Save .WEBM or Swing P2P
    Download the .webm output, export a batch ZIP, or choose "Convert & Swing" to transfer it to another device.

Frequently Asked Questions

What does this 3GP to WEBM route produce?

Transcode the video and audio streams into the target media format. The target format may have different quality or capabilities than the source.

Does the .3gp file leave my device?

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

Can I process large .3gp 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 (WEBM-TO-3GP) & Related Format Conversions

Reverse: webm to 3gp
WEBM to 3GP3GP to MP43GP to MOV3GP to MKV3GP to AVI

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