diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 13a287c..316d63a 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -160,6 +160,10 @@ add_executable(MassBuilderSaveTool WIN32
     Maps/WeaponTypes.hpp
     ToastQueue/ToastQueue.h
     ToastQueue/ToastQueue.cpp
+    Logger/Logger.h
+    Logger/Logger.cpp
+    Logger/MagnumLogBuffer.h
+    Logger/MagnumLogBuffer.cpp
     Utilities/Crc32.h
     FontAwesome/IconsFontAwesome5.h
     FontAwesome/IconsFontAwesome5Brands.h
diff --git a/src/Logger/Logger.cpp b/src/Logger/Logger.cpp
new file mode 100644
index 0000000..577e288
--- /dev/null
+++ b/src/Logger/Logger.cpp
@@ -0,0 +1,111 @@
+// MassBuilderSaveTool
+// Copyright (C) 2021-2022 Guillaume Jacquemin
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#ifdef SAVETOOL_DEBUG_BUILD
+#include <iostream>
+#else
+#include <fstream>
+#endif
+#include <mutex>
+
+#include <Corrade/Containers/GrowableArray.h>
+#include <Corrade/Utility/Debug.h>
+
+#include "Logger.h"
+
+using Containers::Array;
+using Utility::Debug;
+using Utility::Warning;
+using Utility::Error;
+
+namespace MassBuilderSaveTool { namespace Logger {
+
+#ifndef SAVETOOL_DEBUG_BUILD
+static std::ofstream log_file{"SaveToolLog.txt", std::ios::trunc};
+#endif
+
+static std::mutex _logMutex;
+
+static Array<LogEntry> _entries;
+
+inline Debug&
+operator<<(Debug& out, const LogEntry& entry) {
+    using namespace Containers::Literals;
+
+    static char formatted_time[22] = {'\0'};
+    std::strftime(&formatted_time[0], sizeof(formatted_time)/sizeof(formatted_time[0]), "[%Y-%m-%d %H:%M:%S]", &entry.timestamp);
+    out << formatted_time;
+
+#ifdef SAVETOOL_DEBUG_BUILD
+#define COLOUR(col) << Debug::color(Debug::Color::col)
+#else
+#define COLOUR(col)
+#endif
+
+    switch(entry.type) {
+        case EntryType::Info:
+            out << "[INFO]"_s COLOUR(Default);
+            break;
+        case EntryType::Success:
+            out << "[SUCCESS]"_s COLOUR(Green);
+            break;
+        case EntryType::Warning:
+            out << "[WARNING]"_s COLOUR(Yellow);
+            break;
+        case EntryType::Error:
+            out << "[ERROR]"_s COLOUR(Red);
+            break;
+    }
+
+#undef DEBUG_COLOUR
+
+    out << entry.message << Debug::resetColor;
+
+    return out;
+}
+
+void
+initialise() {
+    arrayReserve(_entries, 100);
+}
+
+void
+addEntry(EntryType type, StringView message) {
+    _logMutex.lock();
+
+    auto time = std::time(nullptr);
+
+    LogEntry entry{
+        *std::localtime(&time), type,
+        (message.back() == '\n') ? String{message.exceptSuffix(1)} : String{message}
+    };
+
+    Debug{
+#ifndef SAVETOOL_DEBUG_BUILD
+        &log_file
+#else
+        &std::cout
+#endif
+    } << entry;
+
+    arrayAppend(_entries, std::move(entry));
+
+    _logMutex.unlock();
+}
+
+} // Logger
+
+} // MassBuilderSaveTool
diff --git a/src/Logger/Logger.h b/src/Logger/Logger.h
new file mode 100644
index 0000000..a1abd36
--- /dev/null
+++ b/src/Logger/Logger.h
@@ -0,0 +1,54 @@
+#pragma once
+
+// MassBuilderSaveTool
+// Copyright (C) 2021-2022 Guillaume Jacquemin
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#include <ctime>
+
+#include <Corrade/Containers/String.h>
+
+using namespace Corrade;
+
+using Containers::String;
+using Containers::StringView;
+
+namespace MassBuilderSaveTool { namespace Logger {
+
+enum class EntryType {
+    Info,
+    Success,
+    Warning,
+    Error,
+};
+
+struct LogEntry {
+    std::tm timestamp;
+    EntryType type;
+    String message;
+};
+
+void initialise();
+
+void addEntry(EntryType type, StringView message);
+
+} // Logger
+
+} // MassBuilderSaveTool
+
+#define LOG_INFO(message) MassBuilderSaveTool::Logger::addEntry(MassBuilderSaveTool::Logger::EntryType::Info, message)
+#define LOG_SUCCESS(message) MassBuilderSaveTool::Logger::addEntry(MassBuilderSaveTool::Logger::EntryType::Success, message)
+#define LOG_WARNING(message) MassBuilderSaveTool::Logger::addEntry(MassBuilderSaveTool::Logger::EntryType::Warning, message)
+#define LOG_ERROR(message) MassBuilderSaveTool::Logger::addEntry(MassBuilderSaveTool::Logger::EntryType::Error, message)
diff --git a/src/Logger/MagnumLogBuffer.cpp b/src/Logger/MagnumLogBuffer.cpp
new file mode 100644
index 0000000..8fa3416
--- /dev/null
+++ b/src/Logger/MagnumLogBuffer.cpp
@@ -0,0 +1,34 @@
+// MassBuilderSaveTool
+// Copyright (C) 2021-2022 Guillaume Jacquemin
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#include "MagnumLogBuffer.h"
+
+namespace MassBuilderSaveTool { namespace Logger {
+
+MagnumLogBuffer::MagnumLogBuffer(EntryType type): std::stringbuf(std::ios_base::out), _type{type} {}
+
+MagnumLogBuffer::~MagnumLogBuffer() = default;
+
+int
+MagnumLogBuffer::sync() {
+    addEntry(_type, str().c_str());
+    str({});
+    return 0;
+}
+
+} // Logger
+
+} // MassBuilderSaveTool
diff --git a/src/Logger/MagnumLogBuffer.h b/src/Logger/MagnumLogBuffer.h
new file mode 100644
index 0000000..39aa5a8
--- /dev/null
+++ b/src/Logger/MagnumLogBuffer.h
@@ -0,0 +1,38 @@
+#pragma once
+
+// MassBuilderSaveTool
+// Copyright (C) 2021-2022 Guillaume Jacquemin
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#include <sstream>
+
+#include "Logger.h"
+
+namespace MassBuilderSaveTool { namespace Logger {
+
+class MagnumLogBuffer : public std::stringbuf {
+    public:
+        explicit MagnumLogBuffer(EntryType type);
+        ~MagnumLogBuffer();
+
+    private:
+        int sync() override;
+
+        EntryType _type;
+};
+
+} // Logger
+
+} // MassBuilderSaveTool