Spy cameras are small enough to hide in everyday objects, but you can find them by looking for physical signs, using your phone's camera, and checking your network
A hidden camera works by reflecting light through a lens. That lens has to be somewhere visible to the room it's recording, which means you can spot it if you know what to look for. The fastest method is a visual sweep of the room — looking for small holes, unusual objects, or reflective surfaces in places where a camera wouldn't normally sit. If that finds nothing, you can use your smartphone camera to detect infrared light that many spy cameras emit, or scan your Wi-Fi network to see what devices are connected.
None of these methods requires special equipment or technical knowledge. Most people can complete a basic search in 30 minutes. The goal is not to become a surveillance informed but to know where to look and what questions to ask about unfamiliar objects in your space.
Key Takeaways
- Most spy cameras have a small lens that reflects light; look for pinholes, reflective dots, or tiny lenses in smoke detectors, clocks, picture frames, and charging cables.
- Many spy cameras emit infrared light invisible to your eye but visible through a smartphone camera — point your phone camera around the room and look for bright spots on the screen.
- Check your Wi-Fi network settings to see what devices are connected; unfamiliar device names or unknown IP addresses may indicate a hidden camera.
- If you find a camera, photograph it in place, do not touch it, and contact local police with the photos and location.
What to look for during a physical search
Start by examining objects that could plausibly hide a camera. Smoke detectors, clock radios, USB chargers, desk lamps, and picture frames are common hiding spots because they already have a reason to sit in a room and face outward. Look for a small dark hole or a reflective dot about the size of a pinhead. The lens will usually be darker than the surrounding material and may have a slight shine to it when light hits it at an angle.
Check the edges of objects too. A camera lens can be as small as 2 millimeters across, so it might be hidden at the corner of a frame or along the edge of a charging cable. If an object feels heavier than it should, has a loose or recently glued seam, or has a small hole that doesn't match its stated purpose, examine it more closely. Pay special attention to anything pointing toward a bed, bathroom, or changing area.
Look up and down as well as straight ahead. Cameras can be mounted on shelves above eye level, on the underside of furniture, or on the floor pointing upward. Scan the ceiling for small holes in tiles or fixtures. If you find anything suspicious, take a photo of it in place and do not move or touch it — you may need to show it to police.
Using your smartphone camera to detect infrared light
Many spy cameras use infrared LEDs to record in low light. Your smartphone camera can see infrared light that your eyes cannot. Open your phone's camera app and point it around the room in dim lighting. If a camera is emitting infrared, you will see a bright white or purple spot on your phone's screen where the camera is located. The spot will be much brighter than the rest of the image.
This method works best in a darker room, so close the curtains or turn off the lights. Slowly pan your phone camera across shelves, corners, and objects where a camera might hide. If you see a bright spot that is not coming from a TV remote, a motion sensor, or another device you recognize, investigate that object. Not all spy cameras use infrared, so a negative result does not mean the room is clear — it only means there is no infrared camera present.
Checking your Wi-Fi network for unknown devices
A wireless spy camera has to connect to Wi-Fi to send video somewhere. You can see what devices are connected to your network by opening your router's settings page. On most routers, you do this by typing 192.168.1.1 or 192.168.0.1 into a web browser, then logging in with your router's username and password (usually printed on the router itself or in your account with your internet provider).
Once you are logged in, look for a section called "Connected Devices," "Device List," or "DHCP Clients." You will see a list of devices with names like "iPhone-James" or "Living-Room-TV." Look for any device you do not recognize. Unknown device names, devices with generic names like "Device-1234," or devices that appear and disappear are potential red flags. Note the device name and its IP address (a number like 192.168.1.50).
If you find an unfamiliar device, you can try to identify it by searching its name online or by looking up its MAC address (a longer identifier shown in the device list). Some cameras use obvious names like "WiFi-Camera" or "Hidden-Cam," but others use generic or random names to avoid detection. If you cannot identify a device and it has been connected for days or weeks, it may warrant further investigation.
Checking wired connections and power sources
Not all spy cameras use Wi-Fi. Some record to a memory card inside the device, while others connect to a wired power source and transmit video through a cable. Look for USB cables, charging cables, or power adapters that seem out of place or that lead to an object without an obvious purpose. A camera hidden in a USB charger will have a cable running to power, and the charger itself may be thicker or heavier than a normal one.
Examine any new objects in the space, especially those placed by someone else or that arrived without explanation. If you rent the space, check whether the landlord or property manager has installed any cameras — they are required to disclose this in most jurisdictions, but disclosure rules vary by location. If you own the space, look for anything installed by contractors, repair people, or guests who had access to the room.
What to do if you find a camera
Do not remove, touch, or unplug a camera you find. Doing so may destroy evidence and could interfere with a police investigation. Instead, take a clear photo of the camera in its location, including the surrounding area so the location is obvious. Note the date, time, and exact location where you found it.
Contact your local police department and report what you found. Provide them with the photos, the location, and any information about who had access to the space. If the camera is in a rental property, also notify your landlord or property manager in writing. If it is in a workplace, report it to your employer's security team or HR department. Do not post about it on social media or tell people outside your household until you have reported it to authorities.
Limitations of these search methods
These techniques will find most common spy cameras, but they have limits. Very small cameras, cameras disguised as legitimate devices, or cameras that do not emit infrared light may not be detected by these methods. A camera that uses a wired connection and records to an internal memory card will not appear on your Wi-Fi network. Professional-grade surveillance equipment may be harder to spot than consumer spy cameras.
If you have reason to believe you are under surveillance but cannot find a camera, consider hiring a professional security sweep service. These services use specialized equipment like RF (radio frequency) detectors to find hidden transmitters and cameras. They are more expensive than a DIY search but can detect equipment that basic methods might miss. You can find local security services by searching for "technical surveillance countermeasures" or "TSCM services" in your area.
Frequently Asked Questions
Can I find a spy camera if it is turned off?
A turned-off camera can still be found by visual inspection — the lens and housing are still there. However, it will not emit infrared light, so the smartphone camera method will not work. It also will not appear on your Wi-Fi network. Physical search is your best option for a powered-down camera.
Do all spy cameras show up on Wi-Fi?
No. Only wireless cameras that transmit video over your network will appear in your device list. Cameras that record to an internal memory card, use a wired connection, or transmit on a different network will not show up. Wi-Fi detection is useful but not definitive.
What if I find a camera in a rental property?
Photograph it in place and contact your local police. Then send a written notice to your landlord or property manager describing what you found and where. In most places, landlords must disclose security cameras to tenants, and hidden cameras in private areas like bedrooms or bathrooms are illegal regardless of ownership.
Can I use a regular flashlight instead of my phone camera for the infrared test?
No. A flashlight emits visible light, not infrared. Your smartphone camera works because its sensor is sensitive to infrared wavelengths that human eyes cannot see. A regular flashlight will not help you detect infrared cameras.
Is it legal to search for hidden cameras in my own home?
Yes, you can search your own property. If you rent, you have the right to search common areas and your private spaces. If you find a camera, report it to police and your landlord. The legality of the camera itself — not your search for it — is what matters to law enforcement.