diff --git a/include/ircd/base.h b/include/ircd/base.h
index 6800651b2..61bb74906 100644
--- a/include/ircd/base.h
+++ b/include/ircd/base.h
@@ -16,7 +16,7 @@ namespace ircd
 	// Binary -> Base58 encode suite
 	constexpr size_t b58encode_size(const size_t &);
 	size_t b58encode_size(const const_buffer &in);
-	string_view b58encode(const mutable_buffer &out, const const_buffer &in);
+	string_view b58encode(const mutable_buffer &out, const const_buffer &in) noexcept;
 
 	// Base58 -> Binary decode suite
 	constexpr size_t b58decode_size(const size_t &);
@@ -26,12 +26,12 @@ namespace ircd
 	// Binary -> Base64 conversion suite
 	constexpr size_t b64encode_size(const size_t &);
 	size_t b64encode_size(const const_buffer &in);
-	string_view b64encode(const mutable_buffer &out, const const_buffer &in);
+	string_view b64encode(const mutable_buffer &out, const const_buffer &in) noexcept;
 
 	// Binary -> Base64 conversion without padding
 	constexpr size_t b64encode_unpadded_size(const size_t &);
 	size_t b64encode_unpadded_size(const const_buffer &in);
-	string_view b64encode_unpadded(const mutable_buffer &out, const const_buffer &in);
+	string_view b64encode_unpadded(const mutable_buffer &out, const const_buffer &in) noexcept;
 
 	// Base64 -> Binary conversion (padded or unpadded)
 	constexpr size_t b64decode_size(const size_t &);
@@ -42,8 +42,8 @@ namespace ircd
 	string_view b64tob58(const mutable_buffer &out, const string_view &in);
 	string_view b58tob64(const mutable_buffer &out, const string_view &in);
 	string_view b58tob64_unpadded(const mutable_buffer &out, const string_view &in);
-	string_view b64tob64url(const mutable_buffer &out, const string_view &in);
-	string_view b64urltob64(const mutable_buffer &out, const string_view &in);
+	string_view b64tob64url(const mutable_buffer &out, const string_view &in) noexcept;
+	string_view b64urltob64(const mutable_buffer &out, const string_view &in) noexcept;
 }
 
 inline size_t
diff --git a/ircd/base.cc b/ircd/base.cc
index f94eab9ae..8c2376907 100644
--- a/ircd/base.cc
+++ b/ircd/base.cc
@@ -24,6 +24,7 @@ namespace ircd::base
 ircd::string_view
 ircd::b64urltob64(const mutable_buffer &out,
                   const string_view &in)
+noexcept
 {
 	//TODO: optimize with single pass
 	string_view ret(in);
@@ -35,6 +36,7 @@ ircd::b64urltob64(const mutable_buffer &out,
 ircd::string_view
 ircd::b64tob64url(const mutable_buffer &out,
                   const string_view &in)
+noexcept
 {
 	//TODO: optimize with single pass
 	string_view ret(in);
@@ -145,6 +147,7 @@ ircd::base::b64_encode_permute_tab
 ircd::string_view
 ircd::b64encode(const mutable_buffer &out,
                 const const_buffer &in)
+noexcept
 {
 	const auto pads
 	{
@@ -171,6 +174,7 @@ ircd::b64encode(const mutable_buffer &out,
 ircd::string_view
 ircd::b64encode_unpadded(const mutable_buffer &out,
                          const const_buffer &in)
+noexcept
 {
 	const size_t res_len
 	{
@@ -362,6 +366,7 @@ ircd::b58decode(const mutable_buffer &buf,
 ircd::string_view
 ircd::b58encode(const mutable_buffer &buf,
                 const const_buffer &in)
+noexcept
 {
 	auto p(begin(in));
 	size_t zeroes(0);