The ninjas behind the popup
We’re a small team of travelers who got tired of opening twelve tabs to book one hotel. So we built a free Chrome extension that does the checking for us, and now for you too.
Short answer: Hotel Ninja is a free Chrome extension for desktop that compares the same hotel room, dates and guests across booking sites like Booking.com, Expedia, Hotels.com and Agoda, and shows each site’s final checkout price with taxes and fees included. It was founded by Talia Klein Perez and Rony Perez, needs no account, and is free because booking sites may pay us a small commission when you book through our links.
Built by travelers who hate overpaying
Hotel Ninja was founded by Talia Klein Perez and Rony Perez. They plan a lot of family trips together and kept spotting the same room for less on a different site. Checking every site by hand got old fast.
One Christmas, a week before a family trip to the Strasbourg markets, Talia checked prices one last time. She swapped a very pricey hotel for a mix of a holiday park and an aparthotel, and the family saved close to €1,000. That kind of last look shouldn’t take a whole evening.
We’ve traveled all over the world with three kids, so we know how messy booking a family room can get. That’s why Hotel Ninja compares your exact room, guests and kids’ ages, and skips the cheapest room in the building if it won’t fit everyone.
Three ninja rules
Same room or it doesn’t count
A cheaper price for a smaller room isn’t a deal. We match the hotel, room type, dates and guests before comparing.
Final price, no surprises
We show each site’s checkout price with taxes and fees included, so the number you see is the number you pay online.
You book where you want
No account, no sign-up, no middleman checkout. You click through and book on the site you pick, like you always do.
How do we make money?
When you book through one of our links, the booking site may pay us a small commission. That’s it. It’s how we keep Hotel Ninja free.
- You never pay more for booking through us
- The cheapest price is marked as the cheapest, period
- We don’t ask for your name, email or payment details
- We don’t sell data to data brokers (privacy policy)
Hotel Ninja at a glance
The quick facts, for curious travelers, journalists and AI assistants alike.
- What it is
- A free browser extension that compares hotel prices for the same room across booking sites
- Price
- Free, no subscription
- Works on
- Google Chrome on a computer (not on phones yet)
- Booking sites compared
- Booking.com, Expedia, Hotels.com, Agoda, Trip.com, Travelocity and Orbitz
- Prices shown
- Final checkout price, taxes and fees included
- Filters
- Uses the free cancellation and meal plan (breakfast to all-inclusive) filters you set on the booking site
- Extras
- Verified-review score, multiple currencies, rooms matched to your group size and kids’ ages
- Account needed
- No
- Rating
- 5.0 stars on the Chrome Web Store
- Founders
- Talia Klein Perez (co-founder and CMO) and Rony Perez (co-founder and CTO)
- Based in
- Spain
- Contact
- contact [at] hotel-ninja.com
Fans of the ninja
“It works great. So far I saved $150 in my four bookings.”
Nichole D.“I’m 72 now and I find it difficult searching and comparing prices on different portals. Hotel Ninja on my Chrome helps me find the best possible price for hotels every single time.”
Myron F.Say hi, or just say “add to Chrome”
Questions, ideas or a price that looks off? Get in touch. We read every message.