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Hide. Secure. Reveal. Enterprise-Grade Image Steganography Software

Conceal encrypted UTF-8 text payloads undetected inside carrier images using Least Significant Bit (LSB) channel encoding. Built natively for Windows and Android.

Download Windows Setup (43.8 MB) All Downloads
100% Offline Privacy
Zero Pixel Degradation
AES-16 Passcode Hash
MIT Open Source
CELATUS — Hide. Secure. Reveal.
ENCODE MODE
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Powerful Security Architecture

Engineered for Absolute Confidentiality

CELATUS combines Least Significant Bit channel encoding with passcode key validation to ensure covert data transmission without visual footprints.

Native Desktop Application

Dedicated desktop application built for Windows with a modern interface, layout scaling, and high-performance pixel operations.

Android Mobile App

Standalone Android APK designed for mobile devices with full offline support and one-tap installation.

AES-16 Passcode Key Protection

Passcode key checksum verification prevents unauthorized payload extraction. Incorrect passcode keys reject payload reading before decoding begins.

10-Byte Header Protocol

Every payload is injected with a 10-byte binary header containing magic signature 0x43454C41, key hash, and 32-bit payload length descriptor.

100% Offline & Local Privacy

All bitwise operations occur locally on your machine. Zero cloud uploads, zero telemetry tracking, and zero external server dependencies.

Lossless Image Carrier Support

Supports PNG, WebP, BMP, and carrier images. Retains pristine visual quality with zero imperceptible color shifts in RGB color channels.

Available Downloads

Download CELATUS for Your Device

Download the native Windows installer or Android APK for your device.

Windows Setup Installer
CELATUS_Setup_v1.0.exe • 43.82 MB • Windows 10 / 11 (64-bit)
Download Windows Setup
Windows Portable Zip
celatus_windows_x64.zip • 62.50 MB • Standalone Executable
Download ZIP
Android Mobile App
celatus_mobile.apk • 93.2 KB • Signed APK Package
Download APK
Under The Hood

Header Binary Protocol Specification

CELATUS injects a 10-byte binary validation header prior to bitwise LSB injection to enforce checksum key verification.

10-Byte Header Byte Layout:

The payload bitstream is preceded by 80 bits (10 bytes) of structured metadata:

Bytes 0??3: Signature
0x43 0x45 0x4C 0x41 ('CELA')
Bytes 4–5: Key Checksum
16-bit Passcode Hash
Bytes 6–9: Payload Size
32-bit Integer Length
Bytes 10+: Encrypted Payload
UTF-8 Bitstream Payload
Got Questions?

Frequently Asked Questions

How does CELATUS conceal secret text inside images?
CELATUS uses Least Significant Bit (LSB) channel steganography. It replaces the least significant bit of RGB pixel values in your carrier image with payload bits. Because pixel values change by at most 1 unit, the human eye cannot perceive any difference.
Is my data safe or uploaded to any server?
CELATUS operates 100% offline. All pixel manipulation and passcode hashing occur locally on your machine or phone. No network calls or cloud telemetry exist.
What happens if someone enters an incorrect passcode key?
CELATUS evaluates the 16-bit passcode key checksum in the binary header. If an incorrect passcode is supplied, CELATUS denies access and aborts payload extraction.