diff --git a/test/core/util/BUILD b/test/core/util/BUILD
index cb5fb9114b645..08eab7f700005 100644
--- a/test/core/util/BUILD
+++ b/test/core/util/BUILD
@@ -13,11 +13,10 @@
 # limitations under the License.
 
 load("//bazel:custom_exec_properties.bzl", "LARGE_MACHINE")
-load("//bazel:grpc_build_system.bzl", "grpc_cc_test", "grpc_package")
+load("//bazel:grpc_build_system.bzl", "grpc_cc_test", "grpc_package","grpc_cc_proto_library",  "grpc_internal_proto_library")
 load(
     "//test/core/test_util:grpc_fuzzer.bzl",
     "grpc_fuzz_test",
-    "grpc_proto_fuzzer",
 )
 load("//test/cpp/microbenchmarks:grpc_benchmark_config.bzl", "HISTORY", "grpc_cc_benchmark")
 
@@ -361,19 +360,25 @@ grpc_cc_test(
     ],
 )
 
-grpc_proto_fuzzer(
+grpc_internal_proto_library(
+    name = "chunked_vector_fuzzer_proto",
+    srcs = ["chunked_vector_fuzzer.proto"],
+)
+
+grpc_cc_proto_library(
+    name = "chunked_vector_fuzzer_cc_proto",
+    deps = ["chunked_vector_fuzzer_proto"],
+)
+
+grpc_fuzz_test(
     name = "chunked_vector_fuzzer",
     srcs = ["chunked_vector_fuzzer.cc"],
-    corpus = "chunked_vector_corpora",
-    external_deps = ["absl/log:check"],
-    proto = "chunked_vector_fuzzer.proto",
-    tags = ["no_windows"],
-    uses_event_engine = False,
-    uses_polling = False,
+    external_deps = ["absl/log:check", "fuzztest", "fuzztest_main"],
     deps = [
         "//src/core:chunked_vector",
         "//src/core:resource_quota",
         "//test/core/test_util:grpc_test_util",
+        "chunked_vector_fuzzer_cc_proto",
     ],
 )
 
@@ -720,17 +725,27 @@ grpc_cc_test(
     ],
 )
 
-grpc_proto_fuzzer(
+grpc_internal_proto_library(
+    name = "avl_fuzzer_proto",
+    srcs = ["avl_fuzzer.proto"],
+)
+
+grpc_cc_proto_library(
+    name = "avl_fuzzer_cc_proto",
+    deps = ["avl_fuzzer_proto"],
+)
+
+grpc_fuzz_test(
     name = "avl_fuzzer",
     srcs = ["avl_fuzzer.cc"],
-    corpus = "avl_fuzzer_corpus",
-    proto = "avl_fuzzer.proto",
-    tags = ["no_windows"],
-    uses_event_engine = False,
-    uses_polling = False,
+    external_deps = [
+        "fuzztest",
+        "fuzztest_main",
+    ],
     deps = [
         "//src/core:avl",
         "//test/core/test_util:grpc_test_util",
+        "avl_fuzzer_cc_proto",
     ],
 )
 
diff --git a/test/core/util/avl_fuzzer.cc b/test/core/util/avl_fuzzer.cc
index a0760e659cdbf..215639fe1df98 100644
--- a/test/core/util/avl_fuzzer.cc
+++ b/test/core/util/avl_fuzzer.cc
@@ -20,7 +20,7 @@
 #include <utility>
 
 #include "src/core/util/avl.h"
-#include "src/libfuzzer/libfuzzer_macro.h"
+#include "fuzztest/fuzztest.h"
 #include "test/core/util/avl_fuzzer.pb.h"
 
 bool squelch = true;
@@ -88,9 +88,7 @@ std::map<int, int> MapFromProto(const RepeatedField& p) {
   return a;
 }
 
-}  // namespace grpc_core
-
-DEFINE_PROTO_FUZZER(const avl_fuzzer::Msg& msg) {
+void SameAsMap(const avl_fuzzer::Msg& msg) {
   grpc_core::Fuzzer fuzzer;
   for (const auto& action : msg.actions()) {
     grpc_core::Fuzzer().Run(action);
@@ -105,3 +103,6 @@ DEFINE_PROTO_FUZZER(const avl_fuzzer::Msg& msg) {
     if ((left_avl < right_avl) != (left_map < right_map)) abort();
   }
 }
+FUZZ_TEST(AvlFuzzer, SameAsMap);
+
+}  // namespace grpc_core
diff --git a/test/core/util/avl_fuzzer_corpus/0 b/test/core/util/avl_fuzzer_corpus/0
deleted file mode 100644
index 8b137891791fe..0000000000000
--- a/test/core/util/avl_fuzzer_corpus/0
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/test/core/util/avl_fuzzer_corpus/crash-060a9a897130ba7bb2f4313daa604c47f7c7c907 b/test/core/util/avl_fuzzer_corpus/crash-060a9a897130ba7bb2f4313daa604c47f7c7c907
deleted file mode 100644
index cf46495b8aa8d..0000000000000
--- a/test/core/util/avl_fuzzer_corpus/crash-060a9a897130ba7bb2f4313daa604c47f7c7c907
+++ /dev/null
@@ -1,9 +0,0 @@
-actions {
-  del {
-  }
-}
-compares {
-  left {
-    key: 50397184
-  }
-}
diff --git a/test/core/util/avl_fuzzer_corpus/crash-1fbe8edb82f9a7aa4c2dffe4a6eaa40c34b1e360 b/test/core/util/avl_fuzzer_corpus/crash-1fbe8edb82f9a7aa4c2dffe4a6eaa40c34b1e360
deleted file mode 100644
index c621adbddce64..0000000000000
--- a/test/core/util/avl_fuzzer_corpus/crash-1fbe8edb82f9a7aa4c2dffe4a6eaa40c34b1e360
+++ /dev/null
@@ -1,5 +0,0 @@
-compares {
-  right {
-    key: 805306368
-  }
-}
diff --git a/test/core/util/chunked_vector_corpora/crash-a0868ce3a0f76feefcc715148ed9e71fa0738c2a b/test/core/util/chunked_vector_corpora/crash-a0868ce3a0f76feefcc715148ed9e71fa0738c2a
deleted file mode 100644
index f8a94dba216a0..0000000000000
--- a/test/core/util/chunked_vector_corpora/crash-a0868ce3a0f76feefcc715148ed9e71fa0738c2a
+++ /dev/null
@@ -1,14 +0,0 @@
-actions {
-  move {
-    from: 875700282
-    to: 3473408
-  }
-}
-actions {
-  emplace_back {
-  }
-}
-actions {
-  clear {
-  }
-}
diff --git a/test/core/util/chunked_vector_corpora/testcase-5405829431427072 b/test/core/util/chunked_vector_corpora/testcase-5405829431427072
deleted file mode 100644
index 6ec84ffac7cd7..0000000000000
--- a/test/core/util/chunked_vector_corpora/testcase-5405829431427072
+++ /dev/null
@@ -1,79 +0,0 @@
-actions {
-  emplace_back {
-  }
-}
-actions {
-  emplace_back {
-  }
-}
-actions {
-  emplace_back {
-  }
-}
-actions {
-  emplace_back {
-  }
-}
-actions {
-  emplace_back {
-  }
-}
-actions {
-  emplace_back {
-    value: 2
-  }
-}
-actions {
-  emplace_back {
-  }
-}
-actions {
-  emplace_back {
-  }
-}
-actions {
-  emplace_back {
-  }
-}
-actions {
-  emplace_back {
-    value: 537540660
-  }
-}
-actions {
-  emplace_back {
-  }
-}
-actions {
-  emplace_back {
-  }
-}
-actions {
-  emplace_back {
-  }
-}
-actions {
-  emplace_back {
-    value: 28929
-  }
-}
-actions {
-  emplace_back {
-  }
-}
-actions {
-  emplace_back {
-  }
-}
-actions {
-  emplace_back {
-  }
-}
-actions {
-  emplace_back {
-  }
-}
-actions {
-  pop_back {
-  }
-}
diff --git a/test/core/util/chunked_vector_fuzzer.cc b/test/core/util/chunked_vector_fuzzer.cc
index 6c2d642886dc6..a9c789816b34f 100644
--- a/test/core/util/chunked_vector_fuzzer.cc
+++ b/test/core/util/chunked_vector_fuzzer.cc
@@ -27,8 +27,8 @@
 #include "src/core/lib/resource_quota/resource_quota.h"
 #include "src/core/util/chunked_vector.h"
 #include "src/core/util/ref_counted_ptr.h"
-#include "src/libfuzzer/libfuzzer_macro.h"
 #include "test/core/util/chunked_vector_fuzzer.pb.h"
+#include "fuzztest/fuzztest.h"
 
 bool squelch = true;
 bool leak_check = true;
@@ -169,11 +169,12 @@ class Fuzzer {
   RefCountedPtr<Arena> arena_ = SimpleArenaAllocator(128)->MakeArena();
   std::map<int, Comparison> vectors_;
 };
-}  // namespace grpc_core
 
-DEFINE_PROTO_FUZZER(const chunked_vector_fuzzer::Msg& msg) {
+void SameAsVector(const chunked_vector_fuzzer::Msg& msg) {
   grpc_core::Fuzzer fuzzer;
   for (int i = 0; i < msg.actions_size(); i++) {
     fuzzer.Act(msg.actions(i));
   }
 }
+FUZZ_TEST(ChunkedVectorTest, SameAsVector);
+}  // namespace grpc_core