Instead of letting your old phone sit in a drawer for years, you might as well trade it in for some cold hard cash. With online cellphone trade-in services, it's never been easier to get rid of your old, unwanted phone.

Here's our curated list of the best places to sell your old phone online.

1. eBay

eBay sell phone online

eBay, one of the longest-standing marketplaces online, lets you trade and sell your old phones instantly, at your own discretion. Unlike some of the other marketplaces listed below, eBay will let you handle the entire transaction. From posting on the site, negotiating with buyers, and shipping out your old phone, you'll get full control of the sale.

The price you list on the site needs to be higher than the market value. Negotiations with buyers will bring your profit down, and you have to factor in shipping and handling fees. But if you find a buyer that is in your local area, you can arrange an in-person meetup to sell your phone.

Related: How to Sell More on eBay

2. Amazon

Amazon trade-in cellphone page

The king of online marketplaces, Amazon, has a simple process to trade in your old cellphones. As long as your phone is a specific model, and comes from accepted brands, Amazon will give you an offer. Manufacturers it accepts include Apple, Google, LG, Samsung, and Motorolla.

Amazon does require you to perform a factory reset before sending it in, which is a best practice for trading in any phone on an online service. Once you fill out the rest of the online form, Amazon will send you a shipping label that you can use to mail your phone in.

3. OCBuyBack

OCBuyBack homepage

The California-based company, OCBuyBack, accepts a variety of devices like tablets, iPods, and yes, smartphones. You can trade in phones from manufactures like Apple, Google, OnePlus, and Samsung.

The process is simple: get an instant offer based on your phone and description, use the shipping label provided to send your phone in, and receive a payment within two business days after arrival.

The company does need to check the condition of the phone before paying you out, as it needs to make sure it matches your original description. Keep in mind that you'll get to keep all of your money, and no fees are taken out of your cut. All payments through OCBuyBack can be received by check or PayPal.

4. BuyBackWorld

BuyBackWorld homepage

BuyBackWorld has a large number of cellphone manufacturers that it accepts, so you should have no problem getting an offer. When compared to other sites on this list, BuyBackWorld accepts a wider variety of older phones. To get started, you enter your phone information and receive an instant quote when you're finished.

If you accept your quote, you'll get a shipping label sent directly to you. Once BuyBackWorld receives your phone and takes a look at the condition, you'll receive a payment within two days. You can receive your payment via PayPal, check, or through Venmo.

Read More: How to Recycle Old PCs, Phones, and Other Tech

5. Swopsmart

Swopsmart homepage

Even though Swopsmart has a similar trade-in process compared to other companies, it has distinct differences for payment and shipping. You select your phone model and fill out a quick questionnaire asking you about the phone's condition.

When you're finished, you're given a quote based on your questionnaire. If accepted, you have the option of being sent a shipping label or a free shipping kit.

When Swopsmart receives your phone, it'll check the quality and pay you within 24 hours. The option for a free shipping kit, coupled with the fact that it offers fast payments, sets Swopsmart apart from other services. You can receive your payment by check or PayPal.

6. Swappa

Swappa homepage

Swappa is an online marketplace where buyers and sellers negotiate deals for all types of devices. It's one of the best places to buy and sell used Androids, iPhones, and other cellphone models. In order to start trading, you'll need to create an account on the site.

The site itself does take a fee from the transaction, but the buyer absorbs the fee when they purchase the phone. Not only is there no transaction fee charged to you, but there's also no listing fee either. All payments are done through PayPal, and you'll need to take care of the shipping costs yourself.

7. Decluttr

Decluttr homepage

If you're moving or just want to get rid of junk around the house, Decluttr takes anything from LEGOs to DVDs. It also accepts cellphones from a variety of major manufacturers and models. Enter your phone information, and you'll receive an instant quote.

Decluttr does promise to pay you within 24 hours after receiving your phone and takes no additional fees from your quote. Payments can be accepted using PayPal or direct deposit, but the prices offered for your phone tend to be lower than other online marketplaces.

8. BuyBack Boss

BuyBack Boss process for trading in cellphones

BuyBack Boss claims to get you the highest price for your phone, making it one of the best trade-in services on the web. If you find a higher price for your phone from another service, send it to BuyBack Boss, and it will match the offer. Just fill out your phone information through the site, enter your email, and you'll receive your quote and shipping label.

Once you send in your phone, BuyBack Boss offers same-day payments after it gets a chance to check the quality. You can accept payments via check or PayPal.

9. uSell

uSell homepage

A majority of companies on this list won't take phones if they are below a certain quality threshold. With uSell, you can get rid of any phone, in any condition. As long as you have a PayPal account (or the ability to cash a check) you'll be able to receive payments.

uSell provides descriptions of the different phone conditions it accepts, and you can simply select an option to receive a quote. Even though you're technically selling directly to a buyer, the process works similarly to other sites on this list.

Get Paid for Your Old Phone

There are a number of different options available for you to cash in your old phones. Each site has unique differences, like selling directly to buyers, guaranteed high prices, or quick payments. After you get used to selling online, you can start looking for other used items you might want to sell.