diff --git a/src/core/lib/slice/percent_encoding.c b/src/core/lib/slice/percent_encoding.c
index 27a8f50a48c2ce9b1be2890825169c590238f788..19f5f96cc3abafe4231d0a2d2eee19ba14f47429 100644
--- a/src/core/lib/slice/percent_encoding.c
+++ b/src/core/lib/slice/percent_encoding.c
@@ -35,11 +35,11 @@
 
 #include <grpc/support/log.h>
 
-const uint8_t gpr_url_percent_encoding_unreserved_bytes[256 / 8] = {
+const uint8_t grpc_url_percent_encoding_unreserved_bytes[256 / 8] = {
     0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0xff, 0x03, 0xfe, 0xff, 0xff,
     0x87, 0xfe, 0xff, 0xff, 0x47, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
-const uint8_t gpr_compatible_percent_encoding_unreserved_bytes[256 / 8] = {
+const uint8_t grpc_compatible_percent_encoding_unreserved_bytes[256 / 8] = {
     0x00, 0x00, 0x00, 0x00, 0xdf, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
     0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
@@ -49,8 +49,8 @@ static bool is_unreserved_character(uint8_t c,
   return ((unreserved_bytes[c / 8] >> (c % 8)) & 1) != 0;
 }
 
-grpc_slice gpr_percent_encode_slice(grpc_slice slice,
-                                    const uint8_t *unreserved_bytes) {
+grpc_slice grpc_percent_encode_slice(grpc_slice slice,
+                                     const uint8_t *unreserved_bytes) {
   static const uint8_t hex[] = "0123456789ABCDEF";
 
   // first pass: count the number of bytes needed to output this string
@@ -97,9 +97,9 @@ static uint8_t dehex(uint8_t c) {
   GPR_UNREACHABLE_CODE(return 255);
 }
 
-bool gpr_strict_percent_decode_slice(grpc_slice slice_in,
-                                     const uint8_t *unreserved_bytes,
-                                     grpc_slice *slice_out) {
+bool grpc_strict_percent_decode_slice(grpc_slice slice_in,
+                                      const uint8_t *unreserved_bytes,
+                                      grpc_slice *slice_out) {
   const uint8_t *p = GPR_SLICE_START_PTR(slice_in);
   const uint8_t *in_end = GPR_SLICE_END_PTR(slice_in);
   size_t out_length = 0;
@@ -137,7 +137,7 @@ bool gpr_strict_percent_decode_slice(grpc_slice slice_in,
   return true;
 }
 
-grpc_slice gpr_permissive_percent_decode_slice(grpc_slice slice_in) {
+grpc_slice grpc_permissive_percent_decode_slice(grpc_slice slice_in) {
   const uint8_t *p = GPR_SLICE_START_PTR(slice_in);
   const uint8_t *in_end = GPR_SLICE_END_PTR(slice_in);
   size_t out_length = 0;
diff --git a/src/core/lib/slice/percent_encoding.h b/src/core/lib/slice/percent_encoding.h
index 3cb4a614233a355389a5a4375733a7c69d4663d9..bb5b1b75bce28b5d0e61b5fffaf3661dcaf8c686 100644
--- a/src/core/lib/slice/percent_encoding.h
+++ b/src/core/lib/slice/percent_encoding.h
@@ -46,33 +46,33 @@
 #include <grpc/slice.h>
 
 /* URL percent encoding spec bitfield (usabel as 'unreserved_bytes' in
-   gpr_percent_encode_slice, gpr_strict_percent_decode_slice).
+   grpc_percent_encode_slice, grpc_strict_percent_decode_slice).
    Flags [A-Za-z0-9-_.~] as unreserved bytes for the percent encoding routines
    */
-extern const uint8_t gpr_url_percent_encoding_unreserved_bytes[256 / 8];
+extern const uint8_t grpc_url_percent_encoding_unreserved_bytes[256 / 8];
 /* URL percent encoding spec bitfield (usabel as 'unreserved_bytes' in
-   gpr_percent_encode_slice, gpr_strict_percent_decode_slice).
+   grpc_percent_encode_slice, grpc_strict_percent_decode_slice).
    Flags ascii7 non-control characters excluding '%' as unreserved bytes for the
    percent encoding routines */
-extern const uint8_t gpr_compatible_percent_encoding_unreserved_bytes[256 / 8];
+extern const uint8_t grpc_compatible_percent_encoding_unreserved_bytes[256 / 8];
 
 /* Percent-encode a slice, returning the new slice (this cannot fail):
    unreserved_bytes is a bitfield indicating which bytes are considered
    unreserved and thus do not need percent encoding */
-grpc_slice gpr_percent_encode_slice(grpc_slice slice,
-                                   const uint8_t *unreserved_bytes);
+grpc_slice grpc_percent_encode_slice(grpc_slice slice,
+                                     const uint8_t *unreserved_bytes);
 /* Percent-decode a slice, strictly.
    If the input is legal (contains no unreserved bytes, and legal % encodings),
    returns true and sets *slice_out to the decoded slice.
    If the input is not legal, returns false and leaves *slice_out untouched.
    unreserved_bytes is a bitfield indicating which bytes are considered
    unreserved and thus do not need percent encoding */
-bool gpr_strict_percent_decode_slice(grpc_slice slice_in,
-                                     const uint8_t *unreserved_bytes,
-                                     grpc_slice *slice_out);
+bool grpc_strict_percent_decode_slice(grpc_slice slice_in,
+                                      const uint8_t *unreserved_bytes,
+                                      grpc_slice *slice_out);
 /* Percent-decode a slice, permissively.
    If a % triplet can not be decoded, pass it through verbatim.
    This cannot fail. */
-grpc_slice gpr_permissive_percent_decode_slice(grpc_slice slice_in);
+grpc_slice grpc_permissive_percent_decode_slice(grpc_slice slice_in);
 
 #endif /* GRPC_CORE_LIB_SUPPORT_PERCENT_ENCODING_H */
diff --git a/test/core/end2end/bad_server_response_test.c b/test/core/end2end/bad_server_response_test.c
index 5ad13ae7ec83a5f02a66d635aaa75c2edea415fc..262c4263d4d41cef61bdd22b787b357500222137 100644
--- a/test/core/end2end/bad_server_response_test.c
+++ b/test/core/end2end/bad_server_response_test.c
@@ -33,14 +33,15 @@
 #include <string.h>
 
 #include <grpc/grpc.h>
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
-#include <grpc/slice.h>
 #include <grpc/support/thd.h>
 
 // #include "src/core/ext/transport/chttp2/transport/internal.h"
 #include "src/core/lib/iomgr/sockaddr.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 #include "test/core/end2end/cq_verifier.h"
 #include "test/core/util/port.h"
@@ -105,8 +106,8 @@ static void done_write(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) {
 }
 
 static void handle_write(grpc_exec_ctx *exec_ctx) {
-  grpc_slice slice = grpc_slice_from_copied_buffer(state.response_payload,
-                                                 state.response_payload_length);
+  grpc_slice slice = grpc_slice_from_copied_buffer(
+      state.response_payload, state.response_payload_length);
 
   grpc_slice_buffer_reset_and_unref(&state.outgoing_buffer);
   grpc_slice_buffer_add(&state.outgoing_buffer, slice);
@@ -120,7 +121,7 @@ static void handle_read(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) {
   size_t i;
   for (i = 0; i < state.temp_incoming_buffer.count; i++) {
     char *dump = grpc_dump_slice(state.temp_incoming_buffer.slices[i],
-                                GPR_DUMP_HEX | GPR_DUMP_ASCII);
+                                 GPR_DUMP_HEX | GPR_DUMP_ASCII);
     gpr_log(GPR_DEBUG, "Server received: %s", dump);
     gpr_free(dump);
   }
diff --git a/test/core/end2end/dualstack_socket_test.c b/test/core/end2end/dualstack_socket_test.c
index 10b5e61b8930b5593edeb79ba7727aa1b9600b17..b8a8058b8296b3b12386798ae37e51f8e92608d6 100644
--- a/test/core/end2end/dualstack_socket_test.c
+++ b/test/core/end2end/dualstack_socket_test.c
@@ -41,8 +41,8 @@
 
 #include "src/core/lib/iomgr/resolve_address.h"
 #include "src/core/lib/iomgr/socket_utils_posix.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
-
 #include "test/core/end2end/cq_verifier.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
diff --git a/test/core/security/security_connector_test.c b/test/core/security/security_connector_test.c
index 7ef182b317d8469f2b16333389f081d4db20db8d..898aeb6f425024f59fbd32eb165d88f9a538fe79 100644
--- a/test/core/security/security_connector_test.c
+++ b/test/core/security/security_connector_test.c
@@ -42,6 +42,7 @@
 
 #include "src/core/lib/security/context/security_context.h"
 #include "src/core/lib/security/transport/security_connector.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/env.h"
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/support/tmpfile.h"
diff --git a/test/core/slice/percent_decode_fuzzer.c b/test/core/slice/percent_decode_fuzzer.c
index 69d74816a72e27ed5628bae2f82bd24a8647c367..0a05b335845dcf754dcdf0c2fc57540f6160072e 100644
--- a/test/core/slice/percent_decode_fuzzer.c
+++ b/test/core/slice/percent_decode_fuzzer.c
@@ -49,15 +49,15 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
   grpc_memory_counters_init();
   grpc_slice input = grpc_slice_from_copied_buffer((const char *)data, size);
   grpc_slice output;
-  if (gpr_strict_percent_decode_slice(
-          input, gpr_url_percent_encoding_unreserved_bytes, &output)) {
+  if (grpc_strict_percent_decode_slice(
+          input, grpc_url_percent_encoding_unreserved_bytes, &output)) {
     grpc_slice_unref(output);
   }
-  if (gpr_strict_percent_decode_slice(
-          input, gpr_compatible_percent_encoding_unreserved_bytes, &output)) {
+  if (grpc_strict_percent_decode_slice(
+          input, grpc_compatible_percent_encoding_unreserved_bytes, &output)) {
     grpc_slice_unref(output);
   }
-  grpc_slice_unref(gpr_permissive_percent_decode_slice(input));
+  grpc_slice_unref(grpc_permissive_percent_decode_slice(input));
   grpc_slice_unref(input);
   counters = grpc_memory_counters_snapshot();
   grpc_memory_counters_destroy();
diff --git a/test/core/slice/percent_encode_fuzzer.c b/test/core/slice/percent_encode_fuzzer.c
index 99599bf16ebce8fa0fc314b216321347606a3e98..3aa12c2b1ea18b7abbe4fb48746ce84b542c3900 100644
--- a/test/core/slice/percent_encode_fuzzer.c
+++ b/test/core/slice/percent_encode_fuzzer.c
@@ -48,12 +48,12 @@ static void test(const uint8_t *data, size_t size, const uint8_t *dict) {
   struct grpc_memory_counters counters;
   grpc_memory_counters_init();
   grpc_slice input = grpc_slice_from_copied_buffer((const char *)data, size);
-  grpc_slice output = gpr_percent_encode_slice(input, dict);
+  grpc_slice output = grpc_percent_encode_slice(input, dict);
   grpc_slice decoded_output;
   // encoder must always produce decodable output
-  GPR_ASSERT(gpr_strict_percent_decode_slice(output, dict, &decoded_output));
+  GPR_ASSERT(grpc_strict_percent_decode_slice(output, dict, &decoded_output));
   grpc_slice permissive_decoded_output =
-      gpr_permissive_percent_decode_slice(output);
+      grpc_permissive_percent_decode_slice(output);
   // and decoded output must always match the input
   GPR_ASSERT(grpc_slice_cmp(input, decoded_output) == 0);
   GPR_ASSERT(grpc_slice_cmp(input, permissive_decoded_output) == 0);
@@ -67,7 +67,7 @@ static void test(const uint8_t *data, size_t size, const uint8_t *dict) {
 }
 
 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
-  test(data, size, gpr_url_percent_encoding_unreserved_bytes);
-  test(data, size, gpr_compatible_percent_encoding_unreserved_bytes);
+  test(data, size, grpc_url_percent_encoding_unreserved_bytes);
+  test(data, size, grpc_compatible_percent_encoding_unreserved_bytes);
   return 0;
 }
diff --git a/test/core/slice/percent_encoding_test.c b/test/core/slice/percent_encoding_test.c
index 4f5cd2a65c85d6856f8955b1f39f09172dac649a..d71c99f54c519fcf7c7ac5150b5e3cdd5f899667 100644
--- a/test/core/slice/percent_encoding_test.c
+++ b/test/core/slice/percent_encoding_test.c
@@ -60,12 +60,12 @@ static void test_vector(const char *raw, size_t raw_length, const char *encoded,
   grpc_slice raw_slice = grpc_slice_from_copied_buffer(raw, raw_length);
   grpc_slice encoded_slice =
       grpc_slice_from_copied_buffer(encoded, encoded_length);
-  grpc_slice raw2encoded_slice = gpr_percent_encode_slice(raw_slice, dict);
+  grpc_slice raw2encoded_slice = grpc_percent_encode_slice(raw_slice, dict);
   grpc_slice encoded2raw_slice;
-  GPR_ASSERT(
-      gpr_strict_percent_decode_slice(encoded_slice, dict, &encoded2raw_slice));
+  GPR_ASSERT(grpc_strict_percent_decode_slice(encoded_slice, dict,
+                                              &encoded2raw_slice));
   grpc_slice encoded2raw_permissive_slice =
-      gpr_permissive_percent_decode_slice(encoded_slice);
+      grpc_permissive_percent_decode_slice(encoded_slice);
 
   char *raw2encoded_msg =
       grpc_dump_slice(raw2encoded_slice, GPR_DUMP_HEX | GPR_DUMP_ASCII);
@@ -112,10 +112,10 @@ static void test_nonconformant_vector(const char *encoded,
   grpc_slice encoded_slice =
       grpc_slice_from_copied_buffer(encoded, encoded_length);
   grpc_slice encoded2raw_slice;
-  GPR_ASSERT(!gpr_strict_percent_decode_slice(encoded_slice, dict,
-                                              &encoded2raw_slice));
+  GPR_ASSERT(!grpc_strict_percent_decode_slice(encoded_slice, dict,
+                                               &encoded2raw_slice));
   grpc_slice encoded2raw_permissive_slice =
-      gpr_permissive_percent_decode_slice(encoded_slice);
+      grpc_permissive_percent_decode_slice(encoded_slice);
 
   char *encoded2raw_permissive_msg = grpc_dump_slice(
       encoded2raw_permissive_slice, GPR_DUMP_HEX | GPR_DUMP_ASCII);
@@ -136,23 +136,23 @@ int main(int argc, char **argv) {
   TEST_VECTOR(
       "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_.~",
       "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_.~",
-      gpr_url_percent_encoding_unreserved_bytes);
-  TEST_VECTOR("\x00", "%00", gpr_url_percent_encoding_unreserved_bytes);
-  TEST_VECTOR("\x01", "%01", gpr_url_percent_encoding_unreserved_bytes);
-  TEST_VECTOR("a b", "a%20b", gpr_url_percent_encoding_unreserved_bytes);
-  TEST_VECTOR(" b", "%20b", gpr_url_percent_encoding_unreserved_bytes);
-  TEST_VECTOR("a b", "a b", gpr_compatible_percent_encoding_unreserved_bytes);
-  TEST_VECTOR(" b", " b", gpr_compatible_percent_encoding_unreserved_bytes);
-  TEST_VECTOR("\x0f", "%0F", gpr_url_percent_encoding_unreserved_bytes);
-  TEST_VECTOR("\xff", "%FF", gpr_url_percent_encoding_unreserved_bytes);
-  TEST_VECTOR("\xee", "%EE", gpr_url_percent_encoding_unreserved_bytes);
+      grpc_url_percent_encoding_unreserved_bytes);
+  TEST_VECTOR("\x00", "%00", grpc_url_percent_encoding_unreserved_bytes);
+  TEST_VECTOR("\x01", "%01", grpc_url_percent_encoding_unreserved_bytes);
+  TEST_VECTOR("a b", "a%20b", grpc_url_percent_encoding_unreserved_bytes);
+  TEST_VECTOR(" b", "%20b", grpc_url_percent_encoding_unreserved_bytes);
+  TEST_VECTOR("a b", "a b", grpc_compatible_percent_encoding_unreserved_bytes);
+  TEST_VECTOR(" b", " b", grpc_compatible_percent_encoding_unreserved_bytes);
+  TEST_VECTOR("\x0f", "%0F", grpc_url_percent_encoding_unreserved_bytes);
+  TEST_VECTOR("\xff", "%FF", grpc_url_percent_encoding_unreserved_bytes);
+  TEST_VECTOR("\xee", "%EE", grpc_url_percent_encoding_unreserved_bytes);
   TEST_NONCONFORMANT_VECTOR("%", "%",
-                            gpr_url_percent_encoding_unreserved_bytes);
+                            grpc_url_percent_encoding_unreserved_bytes);
   TEST_NONCONFORMANT_VECTOR("%A", "%A",
-                            gpr_url_percent_encoding_unreserved_bytes);
+                            grpc_url_percent_encoding_unreserved_bytes);
   TEST_NONCONFORMANT_VECTOR("%AG", "%AG",
-                            gpr_url_percent_encoding_unreserved_bytes);
+                            grpc_url_percent_encoding_unreserved_bytes);
   TEST_NONCONFORMANT_VECTOR("\0", "\0",
-                            gpr_url_percent_encoding_unreserved_bytes);
+                            grpc_url_percent_encoding_unreserved_bytes);
   return 0;
 }
diff --git a/test/core/transport/chttp2/bin_encoder_test.c b/test/core/transport/chttp2/bin_encoder_test.c
index 706eef0c9cf4e8be47b589c39c48d399308c7efd..53b55a301e2921f371756999659b772028b054ec 100644
--- a/test/core/transport/chttp2/bin_encoder_test.c
+++ b/test/core/transport/chttp2/bin_encoder_test.c
@@ -41,6 +41,7 @@
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 
 static int all_ok = 1;
@@ -74,8 +75,8 @@ static grpc_slice HUFF(const char *s) {
   return out;
 }
 
-#define EXPECT_SLICE_EQ(expected, slice)                                   \
-  expect_slice_eq(                                                         \
+#define EXPECT_SLICE_EQ(expected, slice)                                    \
+  expect_slice_eq(                                                          \
       grpc_slice_from_copied_buffer(expected, sizeof(expected) - 1), slice, \
       #slice, __LINE__);
 
diff --git a/test/core/transport/chttp2/hpack_encoder_test.c b/test/core/transport/chttp2/hpack_encoder_test.c
index 2445d91530d4086800d0585f6fb50dabada1b5c6..91421e18f49856ae861fef61010465dfea04a0f1 100644
--- a/test/core/transport/chttp2/hpack_encoder_test.c
+++ b/test/core/transport/chttp2/hpack_encoder_test.c
@@ -41,6 +41,7 @@
 #include <grpc/support/string_util.h>
 
 #include "src/core/ext/transport/chttp2/transport/hpack_parser.h"
+#include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/support/string.h"
 #include "src/core/lib/transport/metadata.h"
 #include "test/core/util/parse_hexstring.h"
diff --git a/tools/codegen/core/gen_percent_encoding_tables.c b/tools/codegen/core/gen_percent_encoding_tables.c
index 93f30deeb33f1f72c2fb085993b0e6220ff9c50a..347c21033034a7a1da6bbe094d615a18b8bc354f 100644
--- a/tools/codegen/core/gen_percent_encoding_tables.c
+++ b/tools/codegen/core/gen_percent_encoding_tables.c
@@ -71,14 +71,14 @@ int main(void) {
   legal('_');
   legal('.');
   legal('~');
-  dump("gpr_url_percent_encoding_unreserved_bytes");
+  dump("grpc_url_percent_encoding_unreserved_bytes");
 
   clear();
   for (i = 32; i <= 126; i++) {
     if (i == '%') continue;
     legal(i);
   }
-  dump("gpr_compatible_percent_encoding_unreserved_bytes");
+  dump("grpc_compatible_percent_encoding_unreserved_bytes");
 
   return 0;
 }