Hello solo traveler!!! I guess that if you're reading this post, it's because you have been thinking or planning a trip to beautiful Paris, the most romantic city in the world, and you want to go alone.
Well, this post will not be a description of the places in Paris you must visit, I think there is too much information available nowadays and probably you have already made your research through internet and already bought a travel guide.
Paris is simply beautiful whether you go alone or with friends or a partner. Be prepare to walk; however, if you go alone, be prepare because you can really feel lonely once there, watching couples kissing and embracing each other on the tour Eiffel, as well as happy families and friends walking down together the Champs-Elysées. Restaurants can also be somehow a challenge for solo travelers, especially if you're a woman. I say this since for some people it's too sad seeing a woman having a meal alone in a restaurant and in Paris! If you're strong enough and don't care about other people's opinions, then go for it!!! I don't want to discourage any woman who wants to go alone to Paris.
Once I traveled alone to Paris and it was Ok, you just need to be cautious since there are pickpockets as in any big city and also avoid walking alone in lonely places, use common sense and it will be fine. As for your emotional health, if you recently divorced, left your boyfriend / girlfriend or he / she left you, going to Paris is not a good choice, honestly. BUT, in case you really want to visit it because it has always been your dream, it's the opportunity of your life or you won this trip, there are some options to meet other travelers and residents that can show you the city.
If you have enough money to spend and don't trust strangers, you can hire any of the companies offering tours and activites in Paris, where you can meet other solo travelers and also people open to meet and share their time with tourists. Among the activities these companies offer, there are city tours, biking, wine and cheese tasting workshops. Now, if you don't want to spend so much money, you can contact people through Couchsurfing (check references always), and find activities held by the time you arrive in Paris. It's a great idea to make friends so you can go out in the night to enjoy a show in the Moulin Rouge or Lido, or just going to a night club.
Traveling solo is not bad at all, in fact it's an excellent way to prove yourself of what you're capable of. It's a great experience. One last thing, try to learn some basic French, for God's sake! Try to be a good tourist learning some words, the French will appreciate your effort to communicate in their language.