If you want to sweep paper wallet, it will request for transaction fee, but while do you not just import the private key into the wallet of your choice.

To import on wallet like electrum:

You will need the private key of the paper wallet.

Base58 WIF (it start with 5). You can import on wallets like electrum
5KiuVt5o8DCq8e4LXP5WEHi2DPCbve8ccQSq7QjkyXcaMmgzEPi

Base58 WIF compressed (either seats with K or L). You can also import it on wallets like electrum.
L5dxiUUAapsDSiZjB6St1ek4MezD9ktcBGV1MHmj6W82EFf8etWX


Private Key Hexadecimal Format (64 characters [0-9A-F]). You will first need to convert it to base58 WIF format (either compressed or uncompressed that are above.
FB2CB08C7DE18B4658D67B25F05BF3C1298C5C6B81F09D00DBD56B88B56C2CD2

To convert private key hexadecimal to base58 WIF, use https://bitaddress.org, click on wallet details, input the hexadecimal private key into the space provide and click on view details. You will be able to convert the private key to WIF.

If protected with BIP38 passphrase, the private key will start with 6P, you will need to fill in BIP38 Encrypt passphrase along while you click on wallet details.


So, the wallet import format (WIF) private key start from 5, K or L

Download electrum from https://electrum.org/#download, make sure you verify the signature.

Open the electrum wallet
Click on next
Click on import bitcoin addresses and private keys
Paste in your paper wallet private key
Then, the wallet will be created.
Make sure the wallet synchronize with the blockchain
Then you will see your balance.

Note that the private key is now online.