https://github.com/xonoxc/pngnator

A Rust CLI tool for steganography in PNG images — encode, decode, and remove hidden data inside PNG chunks.
https://github.com/xonoxc/pngnator

clap cli decoder encoder png rust

Last synced: 15 days ago
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A Rust CLI tool for steganography in PNG images — encode, decode, and remove hidden data inside PNG chunks.

• Host: GitHub
• URL: https://github.com/xonoxc/pngnator
• Owner: xonoxc
• Created: 2026-07-04T08:54:57.000Z (20 days ago)
• Default Branch: main
• Last Pushed: 2026-07-05T04:06:14.000Z (19 days ago)
• Last Synced: 2026-07-05T06:07:04.075Z (19 days ago)
• Topics: clap, cli, decoder, encoder, png, rust
• Language: Rust
• Homepage:
• Size: 19.5 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# pngnator

A Rust CLI tool for hiding and extracting secret data in PNG files using PNG chunk manipulation.

## Usage

```bash

# Encode a secret message into a PNG

cargo run -- encode    [output.png]

# Decode a secret message from a PNG

cargo run -- decode  

# Remove a chunk from a PNG

cargo run -- remove  

# Print PNG chunk information

cargo run -- print 

```

The `chunk_type` must be exactly 4 ASCII letters (e.g. `ruSt`). For encoding, `output.png` defaults to `output.png` if not specified.