diff --git a/launcher/BaseInstance.cpp b/launcher/BaseInstance.cpp
index dc2eb2da3..0080cc516 100644
--- a/launcher/BaseInstance.cpp
+++ b/launcher/BaseInstance.cpp
@@ -123,6 +123,7 @@ BaseInstance::BaseInstance(SettingsObject* globalSettings, std::unique_ptr<Setti
     m_settings->registerSetting("ManagedPackName", "");
     m_settings->registerSetting("ManagedPackVersionID", "");
     m_settings->registerSetting("ManagedPackVersionName", "");
+    m_settings->registerSetting("ManagedPackURL", "");
 
     m_settings->registerSetting("Profiler", "");
 }
diff --git a/launcher/ui/pages/instance/ManagedPackPage.cpp b/launcher/ui/pages/instance/ManagedPackPage.cpp
index 230cf1bdf..155580c79 100644
--- a/launcher/ui/pages/instance/ManagedPackPage.cpp
+++ b/launcher/ui/pages/instance/ManagedPackPage.cpp
@@ -4,6 +4,7 @@
 
 #include "ManagedPackPage.h"
 #include <QDesktopServices>
+#include <QLineEdit>
 #include <QUrl>
 #include <QUrlQuery>
 #include "modplatform/ModIndex.h"
@@ -123,6 +124,8 @@ ManagedPackPage::ManagedPackPage(BaseInstance* inst, InstanceWindow* instance_wi
         }
         QDesktopServices::openUrl(url);
     });
+
+    connect(ui->urlLine, &QLineEdit::textChanged, this, [this](QString text) { m_inst->settings()->set("ManagedPackURL", text); });
 }
 
 ManagedPackPage::~ManagedPackPage()
@@ -138,16 +141,20 @@ void ManagedPackPage::openedImpl()
         ui->packOrigin->hide();
         ui->packOriginLabel->hide();
         ui->versionsComboBox->hide();
-        ui->updateButton->hide();
-        ui->updateToVersionLabel->hide();
-        ui->updateFromFileButton->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
+        ui->updateToVersionLabel->setText(tr("URL:"));
+        ui->updateButton->setText(tr("Update Pack"));
+        ui->updateButton->setDisabled(false);
+        ui->urlLine->setText(m_inst->settings()->get("ManagedPackURL").toString());
 
         ui->packName->setText(m_inst->name());
         ui->changelogTextBrowser->setText(tr("This is a local modpack.\n"
-                                             "This can be updated only using a file in %1 format\n")
+                                             "This can be updated either using a file in %1 format or an URL.\n"
+                                             "Do not use a different format than the one mentioned as it may break the instance.\n"
+                                             "Make sure you also trust the URL.\n")
                                               .arg(displayName()));
         return;
     }
+    ui->urlLine->hide();
     ui->packName->setText(m_inst->getManagedPackName());
     ui->packVersion->setText(m_inst->getManagedPackVersionName());
     ui->packOrigin->setText(tr("Website: <a href=%1>%2</a>    |    Pack ID: %3    |    Version ID: %4")
@@ -339,6 +346,11 @@ void ManagedPackPage::onUpdateTaskCompleted(bool did_succeed) const
 
 void ModrinthManagedPackPage::update()
 {
+    auto customURL = m_inst->settings()->get("ManagedPackURL").toString();
+    if (m_inst->getManagedPackID().isEmpty() && !customURL.isEmpty()) {
+        updatePack(customURL);
+        return;
+    }
     auto index = ui->versionsComboBox->currentIndex();
     if (m_pack.versions.length() == 0) {
         setFailState();
@@ -346,25 +358,7 @@ void ModrinthManagedPackPage::update()
     }
     auto version = m_pack.versions.at(index);
 
-    QMap<QString, QString> extra_info;
-    // NOTE: Don't use 'm_pack.id' here, since we didn't completely parse all the metadata for the pack, including this field.
-    extra_info.insert("pack_id", m_inst->getManagedPackID());
-    extra_info.insert("pack_version_id", version.fileId.toString());
-    extra_info.insert("original_instance_id", m_inst->id());
-
-    auto extracted = new InstanceImportTask(version.downloadUrl, this, std::move(extra_info));
-
-    InstanceName inst_name(m_inst->getManagedPackName(), version.version);
-    inst_name.setName(m_inst->name().replace(m_inst->getManagedPackVersionName(), version.version));
-    extracted->setName(inst_name);
-
-    extracted->setGroup(APPLICATION->instances()->getInstanceGroup(m_inst->id()));
-    extracted->setIcon(m_inst->iconKey());
-    extracted->setConfirmUpdate(false);
-
-    // Run our task then handle the result
-    auto did_succeed = runUpdateTask(extracted);
-    onUpdateTaskCompleted(did_succeed);
+    updatePack(version.downloadUrl, version.fileId.toString(), version.version);
 }
 
 void ModrinthManagedPackPage::updateFromFile()
@@ -372,21 +366,8 @@ void ModrinthManagedPackPage::updateFromFile()
     auto output = QFileDialog::getOpenFileUrl(this, tr("Choose update file"), QDir::homePath(), tr("Modrinth pack") + " (*.mrpack *.zip)");
     if (output.isEmpty())
         return;
-    QMap<QString, QString> extra_info;
-    extra_info.insert("pack_id", m_inst->getManagedPackID());
-    extra_info.insert("pack_version_id", QString());
-    extra_info.insert("original_instance_id", m_inst->id());
 
-    auto extracted = new InstanceImportTask(output, this, std::move(extra_info));
-
-    extracted->setName(m_inst->name());
-    extracted->setGroup(APPLICATION->instances()->getInstanceGroup(m_inst->id()));
-    extracted->setIcon(m_inst->iconKey());
-    extracted->setConfirmUpdate(false);
-
-    // Run our task then handle the result
-    auto did_succeed = runUpdateTask(extracted);
-    onUpdateTaskCompleted(did_succeed);
+    updatePack(output);
 }
 
 // FLAME
@@ -487,6 +468,11 @@ void FlameManagedPackPage::suggestVersion()
 
 void FlameManagedPackPage::update()
 {
+    auto customURL = m_inst->settings()->get("ManagedPackURL").toString();
+    if (m_inst->getManagedPackID().isEmpty() && !customURL.isEmpty()) {
+        updatePack(customURL);
+        return;
+    }
     auto index = ui->versionsComboBox->currentIndex();
     if (m_pack.versions.length() == 0) {
         setFailState();
@@ -494,20 +480,7 @@ void FlameManagedPackPage::update()
     }
     auto version = m_pack.versions.at(index);
 
-    QMap<QString, QString> extra_info;
-    extra_info.insert("pack_id", m_inst->getManagedPackID());
-    extra_info.insert("pack_version_id", version.fileId.toString());
-    extra_info.insert("original_instance_id", m_inst->id());
-
-    auto extracted = new InstanceImportTask(version.downloadUrl, this, std::move(extra_info));
-
-    extracted->setName(m_inst->name());
-    extracted->setGroup(APPLICATION->instances()->getInstanceGroup(m_inst->id()));
-    extracted->setIcon(m_inst->iconKey());
-    extracted->setConfirmUpdate(false);
-
-    auto did_succeed = runUpdateTask(extracted);
-    onUpdateTaskCompleted(did_succeed);
+    updatePack(version.downloadUrl, version.fileId.toString());
 }
 
 void FlameManagedPackPage::updateFromFile()
@@ -516,19 +489,33 @@ void FlameManagedPackPage::updateFromFile()
     if (output.isEmpty())
         return;
 
+    updatePack(output);
+}
+
+void ManagedPackPage::updatePack(const QUrl& url, QString versionID, QString versionName)
+{
     QMap<QString, QString> extra_info;
+    // NOTE: Don't use 'm_pack.id' here, since we didn't completely parse all the metadata for the pack, including this field.
     extra_info.insert("pack_id", m_inst->getManagedPackID());
-    extra_info.insert("pack_version_id", QString());
+    extra_info.insert("pack_version_id", versionID);
     extra_info.insert("original_instance_id", m_inst->id());
 
-    auto extracted = new InstanceImportTask(output, this, std::move(extra_info));
+    auto extracted = new InstanceImportTask(url, this, std::move(extra_info));
 
-    extracted->setName(m_inst->name());
+    if (versionName.isEmpty()) {
+        extracted->setName(m_inst->name());
+    } else {
+        InstanceName inst_name(m_inst->getManagedPackName(), versionName);
+        inst_name.setName(m_inst->name().replace(m_inst->getManagedPackVersionName(), versionName));
+        extracted->setName(inst_name);
+    }
     extracted->setGroup(APPLICATION->instances()->getInstanceGroup(m_inst->id()));
     extracted->setIcon(m_inst->iconKey());
     extracted->setConfirmUpdate(false);
 
+    // Run our task then handle the result
     auto did_succeed = runUpdateTask(extracted);
     onUpdateTaskCompleted(did_succeed);
 }
+
 #include "ManagedPackPage.moc"
diff --git a/launcher/ui/pages/instance/ManagedPackPage.h b/launcher/ui/pages/instance/ManagedPackPage.h
index f319ed069..4b7332896 100644
--- a/launcher/ui/pages/instance/ManagedPackPage.h
+++ b/launcher/ui/pages/instance/ManagedPackPage.h
@@ -86,6 +86,8 @@ class ManagedPackPage : public QWidget, public BasePage {
      */
     bool runUpdateTask(InstanceTask*);
 
+    void updatePack(const QUrl& url, QString versionID = {}, QString versionName = {});
+
    protected:
     InstanceWindow* m_instance_window = nullptr;
 
diff --git a/launcher/ui/pages/instance/ManagedPackPage.ui b/launcher/ui/pages/instance/ManagedPackPage.ui
index 62641bc82..5ed80400a 100644
--- a/launcher/ui/pages/instance/ManagedPackPage.ui
+++ b/launcher/ui/pages/instance/ManagedPackPage.ui
@@ -137,6 +137,9 @@
        <item>
         <widget class="QComboBox" name="versionsComboBox"/>
        </item>
+       <item>
+        <widget class="QLineEdit" name="urlLine"/>
+       </item>
        <item>
         <widget class="QPushButton" name="updateButton">
          <property name="enabled">