user65356: Are there online tool or repositories that can convert multiple base58  (BTC address) to base16 simultaneously?

user1307: In Go, you can do this very easily:
package main

import (
    "fmt"

    "github.com/btcsuite/btcutil/base58"
)

var addresses = []string{
    "1Nh7uHdvY6fNwtQtM1G5EZAFPLC33B59rB",
    "1Le1ttNd2GQ79212Epyciw39JDy2E6DYWf",
    "1LpRieyPAZfFyUSMGiZhwAarQoJw1Y8pEx",
}

func main() {
    for _, address := range addresses {
        ripemd160, _, err := base58.CheckDecode(address)
        if err != nil {
            fmt.Printf("Failed to decode address %s: %s\n", address, err)
            continue
        }

        fmt.Printf("HASH160 %x from address %s\n", ripemd160, address)
    }
}

When you have Go installed, you can run this code very easily in your terminal:
$ go get github.com/btcsuite/btcutil/base58
$ go run thefile.go
HASH160 edf10a7fac6b32e24daa5305c723f3de58db1bc8 from address 1Nh7uHdvY6fNwtQtM1G5EZAFPLC33B59rB
HASH160 d76a86f903b33835f06d7b18a1429a8f249f3ab1 from address 1Le1ttNd2GQ79212Epyciw39JDy2E6DYWf
HASH160 d96292e45d045d2269a818b96b13422555557d85 from address 1LpRieyPAZfFyUSMGiZhwAarQoJw1Y8pEx


65356: <p>Are there online tool or repositories that can convert multiple base58  (BTC address) to base16 simultaneously?</p>
 1307: <p>In Go, you can do this very easily:</p>



<pre><code>package main

import (
    "fmt"

    "github.com/btcsuite/btcutil/base58"
)

var addresses = []string{
    "1Nh7uHdvY6fNwtQtM1G5EZAFPLC33B59rB",
    "1Le1ttNd2GQ79212Epyciw39JDy2E6DYWf",
    "1LpRieyPAZfFyUSMGiZhwAarQoJw1Y8pEx",
}

func main() {
    for _, address := range addresses {
        ripemd160, _, err := base58.CheckDecode(address)
        if err != nil {
            fmt.Printf("Failed to decode address %s: %s\n", address, err)
            continue
        }

        fmt.Printf("HASH160 %x from address %s\n", ripemd160, address)
    }
}
</code></pre>

<p>When you have Go installed, you can run this code very easily in your terminal:</p>

<pre><code>$ go get github.com/btcsuite/btcutil/base58
$ go run thefile.go
HASH160 edf10a7fac6b32e24daa5305c723f3de58db1bc8 from address 1Nh7uHdvY6fNwtQtM1G5EZAFPLC33B59rB
HASH160 d76a86f903b33835f06d7b18a1429a8f249f3ab1 from address 1Le1ttNd2GQ79212Epyciw39JDy2E6DYWf
HASH160 d96292e45d045d2269a818b96b13422555557d85 from address 1LpRieyPAZfFyUSMGiZhwAarQoJw1Y8pEx
</code></pre>
