In my opinion the best online crypto wallet is CoinPayments:
- Online since 2013.
- Over 800,000 users in 182 countries
- 250+ cryptocurrencies supported
- High security with 2FA verification or Trezor
- Merchant tools (instant crypto checkout, advanced buttons, invoice builder, API)
- CPS ICO launched in March 2018. – signup bonus (until July,1st, 2018.) 100 CPS $10 value
You can join here or via next banner.
I am using this wallet more than 1 year without any issues. Recommended to do setup 2FA verification, but also the same for email account connected with crypto wallet account.
Every time when you will attempt to login you will need to enter login password and one time password (generated from authenticator app).
Recommend to install authenticator app on your mobile phone and you will be able to access into your crypto wallet from any device, from any place in the world.
It is safe because it is not possible to login without one time code from authenticator app on your mobile phone. (every 30 seconds will be generated new code)

Big advantage is support for many cryptocurrencies and exchange.
Full list you can check here.

In March has been launched their own ICO – CPS and every user will receive 100 CPS ($10 value) + 25 CPS for every referral.
Coin benefits:
- Instant transactions
- CoinPayments fee discounts
- Rewards program
- ICO hosting benefits
- Coin hosting discount
There is also marketplace features such as zero confirmation transactions and atomic swaps / OTC conversion.
More details you can read here.
CoinPayments is the most secure online crypto wallet because you have option to add higher security level by adding email confirmations for sends / withdrawals.
That means every time before coins can be sent or withdraw there is one additional step in compare with all other crypto or bitcoin wallets.

With Coin Payments your crypto currencies will be secured, you will be able to send or accept payments in many crypto currencies and exchange it – all features in one crypto wallet.

I hope that this post and information is useful for you.
If you have any questions or doubts feel free to ask via comments.
Hi!
I didn’t know about the wallet yet. Thank you for sharing this info. There are really a lot of coins / token supported. I just have seen, that they also offer an Android-App, too. Coin-Conversion is a very nice addition. It looks like the wallet is worth a try.
Greetings!