SwingFiles
ppm → ndjsonANALYZE • Local processing

Summarize image .PPM → .NDJSON

Export image metadata or a color summary in the target format. The output is a derived view; it does not preserve the complete source file.

Output scope: The output is a derived view; it does not preserve the complete source file.

Summarize image .PPM → .NDJSON

Drop Files for Local Browser Processing

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

Target Format & Engine Parameters

ANALYZE: Export image metadata or a color summary in the target format. The output is a derived view; it does not preserve the complete source file.

Compute Engine:

Technical Specifications: PPM (.ppm) vs NDJSON (.ndjson)

Specification ParameterSource: .PPM (PPM)Target: .NDJSON (NDJSON)
Full Format NamePortable Pixmap FormatNewline-Delimited JSON Stream
IANA MIME Typeimage/x-portable-pixmapapplication/x-ndjson
Magic Byte Signature (Hex)50 36 0A7B 22
Compression & FidelityLossless SupportedLossless Supported
Alpha / Transparency & DepthRGB / YCbCr (24–48 bit, Opaque)UTF-8 / Binary Structured Stream
Typical Size Reduction Ratio1.0:11.0:1
OS & Platform SupportCross-Platform via SwingFiles WebAssembly EngineCross-Platform via SwingFiles WebAssembly Engine

Processing Steps

  1. 1. Drop .PPM Files Locally
    Choose PPM (image/x-portable-pixmap) files from your device. The browser checks their type before processing.
  2. 2. Summarize Locally
    Export image metadata or a color summary in the target format.
  3. 3. Save .NDJSON or Swing P2P
    Download the .ndjson output, export a batch ZIP, or choose "Convert & Swing" to transfer it to another device.

Frequently Asked Questions

What does this PPM to NDJSON route produce?

Export image metadata or a color summary in the target format. The output is a derived view; it does not preserve the complete source file.

Does the .ppm file leave my device?

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

Can I process large .ppm 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 (NDJSON-TO-PPM) & Related Format Conversions

PPM to CSVPPM to JSONPPM to PARQUETPPM to TSV

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