Metamask is the easiest thing one ethereu developer uses to connecct to any ethereum network. On the backend, metamask uses web3.js library to connect to any blockchain instancec.

No, but I can guide you here, right now

go to remix.ethereum.org

and also download an extension named metamask

yeah its great then, you are halfway there.

what else do you need?

like transfer token and all?

https://wallet.ethereum.org go here

click on the contract section in top right side.

select watch contract in that, and it will ask you for three things.
name
address
Interfacec

address and interface are the important things, while name can be any name of your choice

if you are still using metamask, then connect to the network where you deployed the token. And then in remix, open the contract which you deployed. Go to the compile section of remix. Select the details part in it. There you will find abi copy that. This should be pasted in wallet.ethereum.org inside the json interface section.

After doing these things, your wallet should be ready and you would be able to send and receive tokens.

On a sidenote, you can send and receive tokens using remix also.

I did everything as you said but this is not exactly what I wanted


I want to create wallets automatically in my website , say 100 wallets for each of 100 users

How do I do that ?

They can create there wallet for them selves, what you want to do will give you the private keys of that wallet, which is not cool.

Create a crowd sale contract for buy your tokens, where people will send there ethers and contract will send them tokens

If _owner is public then see its value, you will know.

But that is the whole point in developing the project

Creating wallets and securely storing private and public keys of users and provide facility to send and receive the ERC20 token I created

Can I do the same with ethereumjs accounts ?

Your part is just to create the tokens, people have to create the wallets for themselves, why would anyone keep there tokens in wallet which you created for them

Tell people to use metamask or myetherwallet

Say am creating a trading platform

Centralised or decentralised?

Then people have to store it in the wallet I provide for them in my portal

Centralised

Its very simple algorithm for creating the account, when anyone sign-up in your website run the account creation software and give them new address, and save its private key in your safe.

Account creation software ?

https://github.com/MyEtherWallet/VanityEth

Use this software for creating account

If you want 100 accounts it will create it in one go

With all public and private keys

Okay 👍