diff --git a/DataSpec/DNACommon/PAK.cpp b/DataSpec/DNACommon/PAK.cpp
index b9a0c0306..1fdb109d1 100644
--- a/DataSpec/DNACommon/PAK.cpp
+++ b/DataSpec/DNACommon/PAK.cpp
@@ -466,9 +466,8 @@ bool PAKRouter<BRIDGETYPE>::extractResources(const BRIDGETYPE& pakBridge, bool f
       if (force || cooked.isNone()) {
         cooked.makeDirChain(false);
         PAKEntryReadStream s = entryPtr->beginReadStream(*node);
-        FILE* fout = hecl::Fopen(cooked.getAbsolutePath().data(), _SYS_STR("wb"));
-        fwrite(s.data(), 1, s.length(), fout);
-        fclose(fout);
+        const auto fout = hecl::FopenUnique(cooked.getAbsolutePath().data(), _SYS_STR("wb"));
+        std::fwrite(s.data(), 1, s.length(), fout.get());
       }
 
       if (extractor.func_a) /* Doesn't need PAKRouter access */
diff --git a/DataSpec/DNACommon/TXTR.cpp b/DataSpec/DNACommon/TXTR.cpp
index ef0e59962..c33145784 100644
--- a/DataSpec/DNACommon/TXTR.cpp
+++ b/DataSpec/DNACommon/TXTR.cpp
@@ -812,13 +812,13 @@ bool TXTR::Extract(PAKEntryReadStream& rs, const hecl::ProjectPath& outPath) {
   uint16_t height = rs.readUint16Big();
   uint32_t numMips = rs.readUint32Big();
 
-  FILE* fp = hecl::Fopen(outPath.getAbsolutePath().data(), _SYS_STR("wb"));
-  if (!fp) {
+  auto fp = hecl::FopenUnique(outPath.getAbsolutePath().data(), _SYS_STR("wb"));
+  if (fp == nullptr) {
     Log.report(logvisor::Error, fmt(_SYS_STR("Unable to open '{}' for writing")), outPath.getAbsolutePath());
     return false;
   }
   png_structp png = png_create_write_struct(PNG_LIBPNG_VER_STRING, nullptr, PNGErr, PNGWarn);
-  png_init_io(png, fp);
+  png_init_io(png, fp.get());
   png_infop info = png_create_info_struct(png);
 
   png_text textStruct = {};
@@ -862,7 +862,6 @@ bool TXTR::Extract(PAKEntryReadStream& rs, const hecl::ProjectPath& outPath) {
   png_write_end(png, info);
   png_write_flush(png);
   png_destroy_write_struct(&png, &info);
-  fclose(fp);
 
   return true;
 }
@@ -1017,18 +1016,17 @@ static int GetNumPaletteEntriesForGCN(png_structp png, png_infop info) {
 }
 
 bool TXTR::Cook(const hecl::ProjectPath& inPath, const hecl::ProjectPath& outPath) {
-  FILE* inf = hecl::Fopen(inPath.getAbsolutePath().data(), _SYS_STR("rb"));
-  if (!inf) {
+  auto inf = hecl::FopenUnique(inPath.getAbsolutePath().data(), _SYS_STR("rb"));
+  if (inf == nullptr) {
     Log.report(logvisor::Error, fmt(_SYS_STR("Unable to open '{}' for reading")), inPath.getAbsolutePath());
     return false;
   }
 
   /* Validate PNG */
   char header[8];
-  fread(header, 1, 8, inf);
+  std::fread(header, 1, sizeof(header), inf.get());
   if (png_sig_cmp((png_const_bytep)header, 0, 8)) {
     Log.report(logvisor::Error, fmt(_SYS_STR("invalid PNG signature in '{}'")), inPath.getAbsolutePath());
-    fclose(inf);
     return false;
   }
 
@@ -1036,25 +1034,22 @@ bool TXTR::Cook(const hecl::ProjectPath& inPath, const hecl::ProjectPath& outPat
   png_structp pngRead = png_create_read_struct(PNG_LIBPNG_VER_STRING, nullptr, nullptr, nullptr);
   if (!pngRead) {
     Log.report(logvisor::Error, fmt("unable to initialize libpng"));
-    fclose(inf);
     return false;
   }
   png_infop info = png_create_info_struct(pngRead);
   if (!info) {
     Log.report(logvisor::Error, fmt("unable to initialize libpng info"));
-    fclose(inf);
     png_destroy_read_struct(&pngRead, nullptr, nullptr);
     return false;
   }
 
   if (setjmp(png_jmpbuf(pngRead))) {
     Log.report(logvisor::Error, fmt(_SYS_STR("unable to initialize libpng I/O for '{}'")), inPath.getAbsolutePath());
-    fclose(inf);
     png_destroy_read_struct(&pngRead, &info, nullptr);
     return false;
   }
 
-  png_init_io(pngRead, inf);
+  png_init_io(pngRead, inf.get());
   png_set_sig_bytes(pngRead, 8);
 
   png_read_info(pngRead, info);
@@ -1066,7 +1061,6 @@ bool TXTR::Cook(const hecl::ProjectPath& inPath, const hecl::ProjectPath& outPat
 
   if (width < 4 || height < 4) {
     Log.report(logvisor::Error, fmt("image must be 4x4 or larger"));
-    fclose(inf);
     png_destroy_read_struct(&pngRead, &info, nullptr);
     return false;
   }
@@ -1092,7 +1086,6 @@ bool TXTR::Cook(const hecl::ProjectPath& inPath, const hecl::ProjectPath& outPat
 
   if (bitDepth != 8) {
     Log.report(logvisor::Error, fmt(_SYS_STR("'{}' is not 8 bits-per-channel")), inPath.getAbsolutePath());
-    fclose(inf);
     png_destroy_read_struct(&pngRead, &info, nullptr);
     return false;
   }
@@ -1124,7 +1117,6 @@ bool TXTR::Cook(const hecl::ProjectPath& inPath, const hecl::ProjectPath& outPat
     break;
   default:
     Log.report(logvisor::Error, fmt(_SYS_STR("unsupported color type in '{}'")), inPath.getAbsolutePath());
-    fclose(inf);
     png_destroy_read_struct(&pngRead, &info, nullptr);
     return false;
   }
@@ -1145,7 +1137,6 @@ bool TXTR::Cook(const hecl::ProjectPath& inPath, const hecl::ProjectPath& outPat
 
   if (setjmp(png_jmpbuf(pngRead))) {
     Log.report(logvisor::Fatal, fmt(_SYS_STR("unable to read image in '{}'")), inPath.getAbsolutePath());
-    fclose(inf);
     png_destroy_read_struct(&pngRead, &info, nullptr);
     return false;
   }
@@ -1178,7 +1169,7 @@ bool TXTR::Cook(const hecl::ProjectPath& inPath, const hecl::ProjectPath& outPat
   }
 
   png_destroy_read_struct(&pngRead, &info, nullptr);
-  fclose(inf);
+  inf.reset();
 
   /* Reduce mipmaps to minimum allowed dimensions */
   unsigned minDimX, minDimY;
@@ -1338,18 +1329,17 @@ bool TXTR::Cook(const hecl::ProjectPath& inPath, const hecl::ProjectPath& outPat
 }
 
 bool TXTR::CookPC(const hecl::ProjectPath& inPath, const hecl::ProjectPath& outPath) {
-  FILE* inf = hecl::Fopen(inPath.getAbsolutePath().data(), _SYS_STR("rb"));
-  if (!inf) {
+  auto inf = hecl::FopenUnique(inPath.getAbsolutePath().data(), _SYS_STR("rb"));
+  if (inf == nullptr) {
     Log.report(logvisor::Error, fmt(_SYS_STR("Unable to open '{}' for reading")), inPath.getAbsolutePath());
     return false;
   }
 
   /* Validate PNG */
   char header[8];
-  fread(header, 1, 8, inf);
+  std::fread(header, 1, sizeof(header), inf.get());
   if (png_sig_cmp((png_const_bytep)header, 0, 8)) {
     Log.report(logvisor::Error, fmt(_SYS_STR("invalid PNG signature in '{}'")), inPath.getAbsolutePath());
-    fclose(inf);
     return false;
   }
 
@@ -1357,25 +1347,22 @@ bool TXTR::CookPC(const hecl::ProjectPath& inPath, const hecl::ProjectPath& outP
   png_structp pngRead = png_create_read_struct(PNG_LIBPNG_VER_STRING, nullptr, nullptr, nullptr);
   if (!pngRead) {
     Log.report(logvisor::Error, fmt("unable to initialize libpng"));
-    fclose(inf);
     return false;
   }
   png_infop info = png_create_info_struct(pngRead);
   if (!info) {
     Log.report(logvisor::Error, fmt("unable to initialize libpng info"));
-    fclose(inf);
     png_destroy_read_struct(&pngRead, nullptr, nullptr);
     return false;
   }
 
   if (setjmp(png_jmpbuf(pngRead))) {
     Log.report(logvisor::Error, fmt(_SYS_STR("unable to initialize libpng I/O for '{}'")), inPath.getAbsolutePath());
-    fclose(inf);
     png_destroy_read_struct(&pngRead, &info, nullptr);
     return false;
   }
 
-  png_init_io(pngRead, inf);
+  png_init_io(pngRead, inf.get());
   png_set_sig_bytes(pngRead, 8);
 
   png_read_info(pngRead, info);
@@ -1406,7 +1393,6 @@ bool TXTR::CookPC(const hecl::ProjectPath& inPath, const hecl::ProjectPath& outP
 
   if (bitDepth != 8) {
     Log.report(logvisor::Error, fmt(_SYS_STR("'{}' is not 8 bits-per-channel")), inPath.getAbsolutePath());
-    fclose(inf);
     png_destroy_read_struct(&pngRead, &info, nullptr);
     return false;
   }
@@ -1436,7 +1422,6 @@ bool TXTR::CookPC(const hecl::ProjectPath& inPath, const hecl::ProjectPath& outP
     break;
   default:
     Log.report(logvisor::Error, fmt(_SYS_STR("unsupported color type in '{}'")), inPath.getAbsolutePath());
-    fclose(inf);
     png_destroy_read_struct(&pngRead, &info, nullptr);
     return false;
   }
@@ -1455,7 +1440,6 @@ bool TXTR::CookPC(const hecl::ProjectPath& inPath, const hecl::ProjectPath& outP
 
   if (setjmp(png_jmpbuf(pngRead))) {
     Log.report(logvisor::Fatal, fmt(_SYS_STR("unable to read image in '{}'")), inPath.getAbsolutePath());
-    fclose(inf);
     png_destroy_read_struct(&pngRead, &info, nullptr);
     return false;
   }
@@ -1521,7 +1505,7 @@ bool TXTR::CookPC(const hecl::ProjectPath& inPath, const hecl::ProjectPath& outP
   }
 
   png_destroy_read_struct(&pngRead, &info, nullptr);
-  fclose(inf);
+  inf.reset();
 
   /* Perform box-filter mipmap */
   if (numMips > 1) {
diff --git a/DataSpec/DNAMP1/SCLY.cpp b/DataSpec/DNAMP1/SCLY.cpp
index 8d8889902..cc56ef7fc 100644
--- a/DataSpec/DNAMP1/SCLY.cpp
+++ b/DataSpec/DNAMP1/SCLY.cpp
@@ -42,8 +42,8 @@ void SCLY::exportToLayerDirectories(const PAK::Entry& entry, PAKRouter<PAKBridge
       layerPath.makeDirChain(true);
 
     if (active) {
-      hecl::ProjectPath activePath(layerPath, "!defaultactive");
-      fclose(hecl::Fopen(activePath.getAbsolutePath().data(), _SYS_STR("wb")));
+      const hecl::ProjectPath activePath(layerPath, "!defaultactive");
+      [[maybe_unused]] const auto fp = hecl::FopenUnique(activePath.getAbsolutePath().data(), _SYS_STR("wb"));
     }
 
     hecl::ProjectPath yamlFile(layerPath, _SYS_STR("!objects.yaml"));
diff --git a/DataSpec/SpecBase.cpp b/DataSpec/SpecBase.cpp
index 9093f6fdc..84d89dd2c 100644
--- a/DataSpec/SpecBase.cpp
+++ b/DataSpec/SpecBase.cpp
@@ -721,18 +721,17 @@ void SpecBase::extractRandomStaticEntropy(const uint8_t* buf, const hecl::Projec
   hecl::ProjectPath entropyPath(noAramPath, _SYS_STR("RandomStaticEntropy.png"));
   hecl::ProjectPath catalogPath(noAramPath, _SYS_STR("!catalog.yaml"));
 
-  if (FILE* fp = hecl::Fopen(catalogPath.getAbsolutePath().data(), _SYS_STR("a"))) {
-    fmt::print(fp, fmt("RandomStaticEntropy: {}\n"), entropyPath.getRelativePathUTF8());
-    fclose(fp);
+  if (const auto fp = hecl::FopenUnique(catalogPath.getAbsolutePath().data(), _SYS_STR("a"))) {
+    fmt::print(fp.get(), fmt("RandomStaticEntropy: {}\n"), entropyPath.getRelativePathUTF8());
   }
 
-  FILE* fp = hecl::Fopen(entropyPath.getAbsolutePath().data(), _SYS_STR("wb"));
-  if (!fp) {
+  auto fp = hecl::FopenUnique(entropyPath.getAbsolutePath().data(), _SYS_STR("wb"));
+  if (fp == nullptr) {
     Log.report(logvisor::Error, fmt(_SYS_STR("Unable to open '{}' for writing")), entropyPath.getAbsolutePath());
     return;
   }
   png_structp png = png_create_write_struct(PNG_LIBPNG_VER_STRING, nullptr, PNGErr, PNGWarn);
-  png_init_io(png, fp);
+  png_init_io(png, fp.get());
   png_infop info = png_create_info_struct(png);
 
   png_text textStruct = {};
@@ -756,7 +755,6 @@ void SpecBase::extractRandomStaticEntropy(const uint8_t* buf, const hecl::Projec
   png_write_end(png, info);
   png_write_flush(png);
   png_destroy_write_struct(&png, &info);
-  fclose(fp);
 }
 
 void SpecBase::clearTagCache() {
diff --git a/DataSpec/SpecMP1.cpp b/DataSpec/SpecMP1.cpp
index c45746479..3d6e3041a 100644
--- a/DataSpec/SpecMP1.cpp
+++ b/DataSpec/SpecMP1.cpp
@@ -613,12 +613,13 @@ struct SpecMP1 : SpecBase {
     } else if (hecl::IsPathPNG(path)) {
       return {SBIG('TXTR'), path.hash().val32()};
     } else if (hecl::IsPathYAML(path)) {
-      FILE* fp = hecl::Fopen(path.getAbsolutePath().data(), _SYS_STR("r"));
-      if (!fp)
+      auto fp = hecl::FopenUnique(path.getAbsolutePath().data(), _SYS_STR("r"));
+      if (fp == nullptr) {
         return {};
+      }
 
       athena::io::YAMLDocReader reader;
-      yaml_parser_set_input_file(reader.getParser(), fp);
+      yaml_parser_set_input_file(reader.getParser(), fp.get());
 
       urde::SObjectTag resTag;
       if (reader.ClassTypeOperation([&](const char* className) -> bool {
@@ -700,10 +701,9 @@ struct SpecMP1 : SpecBase {
             return false;
           })) {
         resTag.id = path.hash().val32();
-        fclose(fp);
+        fp.reset();
         return resTag;
       }
-      fclose(fp);
     }
     return {};
   }
diff --git a/Editor/ViewManager.cpp b/Editor/ViewManager.cpp
index c55cd6ae7..cb53a63fb 100644
--- a/Editor/ViewManager.cpp
+++ b/Editor/ViewManager.cpp
@@ -198,28 +198,28 @@ ViewManager::ViewManager(hecl::Runtime::FileStoreManager& fileMgr, hecl::CVarMan
   char path[2048];
   hecl::Sstat theStat;
 
-  FILE* fp = hecl::Fopen(m_recentProjectsPath.c_str(), _SYS_STR("r"), hecl::FileLockType::Read);
+  auto fp = hecl::FopenUnique(m_recentProjectsPath.c_str(), _SYS_STR("r"), hecl::FileLockType::Read);
   if (fp) {
-    while (fgets(path, 2048, fp)) {
+    while (std::fgets(path, std::size(path), fp.get())) {
       std::string pathStr(path);
       pathStr.pop_back();
       hecl::SystemStringConv pathStrView(pathStr);
-      if (!hecl::Stat(pathStrView.c_str(), &theStat) && S_ISDIR(theStat.st_mode))
+      if (!hecl::Stat(pathStrView.c_str(), &theStat) && S_ISDIR(theStat.st_mode)) {
         m_recentProjects.emplace_back(pathStrView.sys_str());
+      }
     }
-    fclose(fp);
   }
 
-  fp = hecl::Fopen(m_recentFilesPath.c_str(), _SYS_STR("r"), hecl::FileLockType::Read);
+  fp = hecl::FopenUnique(m_recentFilesPath.c_str(), _SYS_STR("r"), hecl::FileLockType::Read);
   if (fp) {
-    while (fgets(path, 2048, fp)) {
+    while (std::fgets(path, std::size(path), fp.get())) {
       std::string pathStr(path);
       pathStr.pop_back();
       hecl::SystemStringConv pathStrView(pathStr);
-      if (!hecl::Stat(pathStrView.c_str(), &theStat) && S_ISDIR(theStat.st_mode))
+      if (!hecl::Stat(pathStrView.c_str(), &theStat) && S_ISDIR(theStat.st_mode)) {
         m_recentFiles.emplace_back(pathStrView.sys_str());
+      }
     }
-    fclose(fp);
   }
 }
 
@@ -231,11 +231,14 @@ void ViewManager::pushRecentProject(hecl::SystemStringView path) {
       return;
   }
   m_recentProjects.emplace_back(path);
-  FILE* fp = hecl::Fopen(m_recentProjectsPath.c_str(), _SYS_STR("w"), hecl::FileLockType::Write);
-  if (fp) {
-    for (hecl::SystemString& pPath : m_recentProjects)
-      fmt::print(fp, fmt("{}\n"), hecl::SystemUTF8Conv(pPath));
-    fclose(fp);
+
+  const auto fp = hecl::FopenUnique(m_recentProjectsPath.c_str(), _SYS_STR("w"), hecl::FileLockType::Write);
+  if (fp == nullptr) {
+    return;
+  }
+
+  for (const hecl::SystemString& pPath : m_recentProjects) {
+    fmt::print(fp.get(), fmt("{}\n"), hecl::SystemUTF8Conv(pPath));
   }
 }
 
@@ -245,11 +248,14 @@ void ViewManager::pushRecentFile(hecl::SystemStringView path) {
       return;
   }
   m_recentFiles.emplace_back(path);
-  FILE* fp = hecl::Fopen(m_recentFilesPath.c_str(), _SYS_STR("w"), hecl::FileLockType::Write);
-  if (fp) {
-    for (hecl::SystemString& pPath : m_recentFiles)
-      fmt::print(fp, fmt("{}\n"), hecl::SystemUTF8Conv(pPath));
-    fclose(fp);
+
+  const auto fp = hecl::FopenUnique(m_recentFilesPath.c_str(), _SYS_STR("w"), hecl::FileLockType::Write);
+  if (fp == nullptr) {
+    return;
+  }
+
+  for (const hecl::SystemString& pPath : m_recentFiles) {
+    fmt::print(fp.get(), fmt("{}\n"), hecl::SystemUTF8Conv(pPath));
   }
 }
 
diff --git a/Runtime/CMemoryCardSysNix.cpp b/Runtime/CMemoryCardSysNix.cpp
index 9b9df6476..8c4921a17 100644
--- a/Runtime/CMemoryCardSysNix.cpp
+++ b/Runtime/CMemoryCardSysNix.cpp
@@ -39,10 +39,10 @@ kabufuda::SystemString CMemoryCardSys::_CreateDolphinCard(kabufuda::ECardSlot sl
     return {};
 
   path += fmt::format(fmt("/MemoryCard{:c}.USA.raw"), slot == kabufuda::ECardSlot::SlotA ? 'A' : 'B');
-  FILE* fp = hecl::Fopen(path.c_str(), "wb");
-  if (!fp)
+  const auto fp = hecl::FopenUnique(path.c_str(), "wb");
+  if (fp == nullptr) {
     return {};
-  fclose(fp);
+  }
 
   return path;
 }
diff --git a/Runtime/CMemoryCardSysOSX.cpp b/Runtime/CMemoryCardSysOSX.cpp
index 7b5edbf78..e1e659506 100644
--- a/Runtime/CMemoryCardSysOSX.cpp
+++ b/Runtime/CMemoryCardSysOSX.cpp
@@ -29,10 +29,10 @@ kabufuda::SystemString CMemoryCardSys::_CreateDolphinCard(kabufuda::ECardSlot sl
     return {};
 
   path += fmt::format(fmt("/MemoryCard{:c}.USA.raw"), slot == kabufuda::ECardSlot::SlotA ? 'A' : 'B');
-  FILE* fp = hecl::Fopen(path.c_str(), "wb");
-  if (!fp)
+  const auto fp = hecl::FopenUnique(path.c_str(), "wb");
+  if (fp == nullptr) {
     return {};
-  fclose(fp);
+  }
 
   return path;
 }
diff --git a/Runtime/CMemoryCardSysWin.cpp b/Runtime/CMemoryCardSysWin.cpp
index 47a5704cb..e5db4be8e 100644
--- a/Runtime/CMemoryCardSysWin.cpp
+++ b/Runtime/CMemoryCardSysWin.cpp
@@ -100,10 +100,10 @@ kabufuda::SystemString CMemoryCardSys::_CreateDolphinCard(kabufuda::ECardSlot sl
 
   path += fmt::format(fmt(_SYS_STR("/MemoryCard{}.USA.raw")),
                       slot == kabufuda::ECardSlot::SlotA ? _SYS_STR('A') : _SYS_STR('B'));
-  FILE* fp = hecl::Fopen(path.c_str(), _SYS_STR("wb"));
-  if (!fp)
+  const auto fp = hecl::FopenUnique(path.c_str(), _SYS_STR("wb"));
+  if (fp == nullptr) {
     return {};
-  fclose(fp);
+  }
 
   return path;
 }