diff --git a/include/fc/io/base16.hpp b/include/fc/io/base16.hpp
deleted file mode 100644
index f3ca29e..0000000
--- a/include/fc/io/base16.hpp
+++ /dev/null
@@ -1,13 +0,0 @@
-#pragma once
-#include <fc/string.hpp>
-#include <fc/utility.hpp>
-
-namespace fc {
-    uint8_t from_hex( char c );
-    fc::string to_hex( const char* d, uint32_t s );
-
-    /**
-     *  @return the number of bytes decoded
-     */
-    size_t from_hex( const fc::string& hex_str, char* out_data, size_t out_data_len );
-} 
diff --git a/include/fc/io/base58.hpp b/include/fc/io/base58.hpp
deleted file mode 100644
index 71beb15..0000000
--- a/include/fc/io/base58.hpp
+++ /dev/null
@@ -1,8 +0,0 @@
-#pragma once
-#include <fc/string.hpp>
-
-namespace fc {
-    fc::string to_base58( const char* d, size_t s );
-    fc::vector<char> from_base58( const fc::string& base58_str );
-    size_t from_base58( const fc::string& base58_str, char* out_data, size_t out_data_len );
-}
diff --git a/include/fc/io/base64.hpp b/include/fc/io/base64.hpp
deleted file mode 100644
index 3a69a2e..0000000
--- a/include/fc/io/base64.hpp
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef _FC_BASE64_HPP
-#define _FC_BASE64_HPP
-#include <string>
-
-namespace fc {
-std::string base64_encode(unsigned char const* bytes_to_encode, unsigned int in_len);
-std::string base64_encode( const std::string& enc );
-std::string base64_decode( const std::string& encoded_string);
-}  // namespace fc
-#endif // _FC_BASE64_HPP