Probe & capacity

Two read-only panels support the hide/reveal workflow. Neither modifies your image, and both are free.

Probe

Drop an image into Probe and HILIA answers: does this look like it's carrying hidden data? It inspects the statistical fingerprints that hiding leaves behind.

Use it to:

Verify your own work — probe a stego image before sending to confirm the payload survived your export pipeline.
Check a received image — if someone tells you "the report is in the photo", probe confirms there's something there before you ask for the passcode.

Note

Probe is a heuristic, not an oracle. A clean result doesn't prove an image is empty (good hiding is designed to be hard to spot — that's the point), and heavily processed images can trip false positives.

Capacity

Drop a carrier into Capacity and HILIA reports how much payload it can hold with each hiding method. Check this before hiding when your payload is more than a few hundred kilobytes.

What moves the number:

Resolution — more pixels, more room. It scales roughly linearly.
Method — LSB-2 holds about twice LSB-1; F5 holds the least.
Image content — for the JPEG methods, busy photos hold more than flat graphics.

If your payload doesn't fit, zip it, choose a roomier method, or use a bigger carrier — and keep some headroom for stealth.