What bug
is in your house?
Identify insects, spiders and other household pests, learn what they mean, and find out how to get rid of them.
Photos from iNaturalist, CC0 or CC BY. Full credits on each page and on the photo credits page.
Identify a Bug
See clear photos, key features and life-size comparisons to identify what you found.
Start here ›
Jarro Nevsbaru, CC BYWhere Do You See It?
Find the most common bugs in every room of your home.
Get Rid of Them
Practical steps to remove bugs and keep them from coming back, room by room.
Keep them out ›
Image made with AIWhat did you see?
Start with how it moves. A couple of quick taps narrow 71 common house bugs to the few that could be yours.
Where did you find it?
About how big is the body?
"Likely" matches fit everything you chose. Tap a photo for the full page. The dot is the danger rating.
Find bugs by room.
Kitchen
Bathroom
Bedroom
Living room
Basement
GarageRoom scenes are illustrative images made with AI. Every bug photo on the site is a real, credited photograph.
Three answers, before anything else.
Every page opens with one of them. Each rating is checked against at least two published sources, and the page lists them.
Harmless
No real threat to people. We still say whether it's a pest, why it came in and how to keep it out.
Be careful
It can bite, sting or spread germs. Mild for most people, serious for some. We say who shouldn't wait.
Get advice
A bite can need medical care or spread serious disease. These pages put Poison Help, 1-800-222-1222, at the top.
What lives in your state?
Each state page lists the bugs and spiders recorded there, which ones need care, and which only turn up now and then.