Validated by independent steganalysis

Hide secrets
in plain sight.

Conceal private messages inside ordinary images, audio, and documents. Protected by AES-256-GCM encryption. The carrier looks ordinary; the payload stays encrypted.

Start hiding — it's free See how it works
AES-256encryption
3%pixels changed
100%private
Hidden inside "Meet me at 8 ◈"
Looks identical · Message secured
The process

Three steps. Fully encrypted.

01

Choose a carrier

Upload any image, audio file, or document. Your everyday photo becomes a secret vault.

02

Lock your message

Type your secret and set a password. We encrypt it with AES-256 before hiding a single bit.

03

Share freely

Download a file that looks identical to the original. Only your password unlocks the truth.

The vault

Your secret, kept.

Free plan · PNG only · 10 chars · 15MB · Upgrade to Pro →
◈

Pro Feature

This feature requires a Pro plan. Upgrade to unlock all features.

Pro includes:

✓ Unlimited text messages

✓ All formats (JPEG, WAV, AVI, PDF, DOCX, ODT)

✓ File-in-file hiding

✓ Message expiry & self-destruct

✓ Batch processing

✓ Deniable encryption

✓ 100MB carrier files

✓ Genkey, Capacity, Analyze tools

◈ Upgrade to Pro
?

File guidelines

  • Free: PNG only · 15MB · 10 chars
  • Pro: All formats · 100MB · unlimited
  • Images: tiled engine, no resize
  • Audio: compressed to 22kHz mono
  • Video: reduced to 640x480
  • Your secret is always 100% intact
◈

Click to choose or drag a file here

PNG · JPEG · WAV · AVI · PDF · DOCX · ODT recommended MP3/MP4 uploads convert to WAV/AVI output
Remember your password. StegoMaster never stores passwords. If you forget it, your hidden message or file cannot be recovered.
⊙

Click to choose the file to reveal

The carrier you received
◈

Click to choose multiple carrier files

PNG · WAV · AVI · PDF · DOCX · up to 20 files
Same message & password embedded in every carrier file. Download arrives as a ZIP.
Password Generator — generate cryptographically strong passwords for steganography. All passwords meet the 12+ char, uppercase, lowercase, digit, special character requirements.
Capacity Estimation — find out how much data a carrier can hold before embedding. Results include safe embed limit, texture analysis, and format-specific notes.
◈

Click to choose a carrier file

PNG · JPEG · WAV · MP3 · AVI · PDF · DOCX · ODT
Steganalysis — detect hidden data in a file. Upload both cover (original) and stego (suspicious) for accurate results. Cover-only mode gives limited results.
⊙

Click to choose the file to analyze

Any carrier format · PNG · WAV · AVI · PDF · DOCX
◈

Click to choose the original file

Same format as stego file · significantly improves accuracy
Deniable Encryption — two independent messages in one PNG. Under coercion, reveal the decoy password. Your real secret stays cryptographically hidden.
◈

Click to choose a PNG image

PNG only · both messages hidden in one image
Neither password reveals the other exists. Both messages are cryptographically independent inside the same image.
Why trust us

Built so we can't betray you.

The strongest privacy promise is one we're incapable of breaking. StegoMaster runs without storing your files, your messages, or your passwords. There's no database to leak, no logs to subpoena.

🔐

AES-256-GCM

The same encryption standard trusted by governments and banks worldwide.

👁

Invisible to detection

Matrix embedding changes only 3% of data — validated against professional steganalysis.

🗑

Nothing kept

Files auto-delete after download. No tracking, no accounts, no data harvesting.

⊞

Any format

Images, audio, video, and documents — hide secrets in the files you already use.