Bitcoin is freedom, or that's what they used to say... The reality is that 99% of the users need a 3rd party software (called wallets) to store and spend their coins. And that's not cool we should be able to take our private keys and be able to build our own transactions localy, and just use a 3rd party service to broadcast our transactions.
And that's why i'm building a Bitcoin Toolkit, it runs locally as a web app, and it's some weird temporary wallet with some useful tools for bitcoin.
and before anyone want to try it let me put this red big warning:
You should never use your private keys on a online serviceAnd now lets talk about the tool.

It can do a lot of Bitcoin related things, you can create address, search for address with balance, create transactions, verify balance, sign transactions... and all that kind of thing that a wallet should let us do with some other cool tools.
You can find the demo version here:
https://toolkit.lucky.lat/And if you want to try it locally (this is the right and secure way) you can download the code here.
https://toolkit.lucky.lat/bitcointoolkit.zipGive me your feedback, what should i add?