diff --git a/.github/ISSUE_TEMPLATE/bug_report.yml b/.github/ISSUE_TEMPLATE/bug_report.yml
new file mode 100644
index 00000000..a4f7dbaa
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/bug_report.yml
@@ -0,0 +1,118 @@
+name: Bug Report
+description: Report a reproducible problem in Netcatty
+title: "[Bug] "
+labels: ["bug", "triage"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to report a bug. Incomplete reports may be closed automatically.
+        Please search [existing issues](https://github.com/binaricat/Netcatty/issues) first.
+
+  - type: dropdown
+    id: platform
+    attributes:
+      label: Operating system
+      options:
+        - macOS
+        - Windows
+        - Linux
+    validations:
+      required: true
+
+  - type: input
+    id: version
+    attributes:
+      label: Netcatty version
+      description: Find it in Settings > Application, or on the [latest release](https://github.com/binaricat/Netcatty/releases/latest) page.
+      placeholder: "e.g. 1.2.3"
+    validations:
+      required: true
+
+  - type: dropdown
+    id: install_source
+    attributes:
+      label: How did you install Netcatty?
+      options:
+        - GitHub Release (.dmg / .exe / .AppImage / .deb)
+        - Homebrew
+        - Built from source (npm run dev / pack)
+        - Other
+    validations:
+      required: true
+
+  - type: dropdown
+    id: area
+    attributes:
+      label: Affected area
+      multiple: true
+      options:
+        - SSH connection / terminal
+        - SFTP / file browser
+        - Host vault / keychain
+        - Port forwarding
+        - Snippets
+        - AI assistant
+        - Settings / sync
+        - UI / layout
+        - Crash / app won't start
+        - Other
+    validations:
+      required: true
+
+  - type: dropdown
+    id: reproducibility
+    attributes:
+      label: Can you reproduce it?
+      options:
+        - Always (100%)
+        - Often (>50%)
+        - Sometimes
+        - Once / not sure
+    validations:
+      required: true
+
+  - type: textarea
+    id: steps
+    attributes:
+      label: Steps to reproduce
+      description: Numbered steps so we can follow exactly.
+      placeholder: |
+        1. Open Netcatty and connect to host X
+        2. Click SFTP tab
+        3. ...
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected behavior
+    validations:
+      required: true
+
+  - type: textarea
+    id: actual
+    attributes:
+      label: Actual behavior
+    validations:
+      required: true
+
+  - type: textarea
+    id: logs
+    attributes:
+      label: Logs / screenshots
+      description: |
+        Optional but helpful. Crash logs: Settings > System > Crash Logs > Open folder.
+        For SSH errors, include redacted connection details (no passwords / private keys).
+      placeholder: Paste relevant log lines or attach screenshots.
+
+  - type: checkboxes
+    id: checklist
+    attributes:
+      label: Before submitting
+      options:
+        - label: I searched existing issues and did not find a duplicate
+          required: true
+        - label: I removed passwords, private keys, and other secrets from this report
+          required: true
diff --git a/.github/ISSUE_TEMPLATE/config.yml b/.github/ISSUE_TEMPLATE/config.yml
new file mode 100644
index 00000000..c5ae4733
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/config.yml
@@ -0,0 +1,8 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Questions & general help
+    url: https://github.com/binaricat/Netcatty/discussions
+    about: Not sure if it is a bug? Ask in Discussions first.
+  - name: Latest release
+    url: https://github.com/binaricat/Netcatty/releases/latest
+    about: Check your Netcatty version before reporting.
diff --git a/.github/ISSUE_TEMPLATE/feature_request.yml b/.github/ISSUE_TEMPLATE/feature_request.yml
new file mode 100644
index 00000000..634c407e
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/feature_request.yml
@@ -0,0 +1,72 @@
+name: Feature Request
+description: Suggest an improvement or new capability
+title: "[Feature] "
+labels: ["enhancement", "triage"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Describe the problem you are trying to solve and the change you want.
+        Vague requests like "make it better" may be closed.
+
+  - type: textarea
+    id: problem
+    attributes:
+      label: Problem / pain point
+      description: What is hard, missing, or frustrating today?
+      placeholder: When I manage 50+ hosts, I cannot ...
+    validations:
+      required: true
+
+  - type: textarea
+    id: solution
+    attributes:
+      label: Proposed solution
+      description: What would you like Netcatty to do?
+    validations:
+      required: true
+
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives considered
+      description: Other tools, workarounds, or designs you thought about.
+    validations:
+      required: true
+
+  - type: dropdown
+    id: area
+    attributes:
+      label: Related area
+      multiple: true
+      options:
+        - SSH / terminal
+        - SFTP
+        - Host vault / keychain
+        - Port forwarding
+        - Snippets
+        - AI assistant
+        - Settings / sync
+        - UI / UX
+        - Other
+    validations:
+      required: true
+
+  - type: dropdown
+    id: priority
+    attributes:
+      label: How important is this to you?
+      options:
+        - Nice to have
+        - Would improve my daily workflow
+        - Blocking / critical for my use case
+    validations:
+      required: true
+
+  - type: checkboxes
+    id: checklist
+    attributes:
+      label: Before submitting
+      options:
+        - label: I searched existing issues and discussions for similar requests
+          required: true
diff --git a/.github/workflows/issue-format.yml b/.github/workflows/issue-format.yml
new file mode 100644
index 00000000..87a911c0
--- /dev/null
+++ b/.github/workflows/issue-format.yml
@@ -0,0 +1,139 @@
+name: issue-format
+
+on:
+  issues:
+    types: [opened, edited]
+
+permissions:
+  issues: write
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    # Skip issues opened by bots (e.g. dependabot) and maintainers fixing format
+    if: >-
+      github.event.issue.user.type != 'Bot' &&
+      !contains(github.event.issue.labels.*.name, 'format-exempt')
+    steps:
+      - name: Validate title and body
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const issue = context.payload.issue;
+            const title = issue.title.trim();
+            const body = (issue.body || '').trim();
+            const errors = [];
+
+            const modernTitle = /^\[(Bug|Feature)\] .{8,}/.test(title);
+            const legacyAppTitle = /^Bug:\s*.{5,}/i.test(title);
+            if (!modernTitle && !legacyAppTitle) {
+              errors.push(
+                'Title must start with `[Bug]` or `[Feature]` followed by a short summary (at least 8 characters after the prefix). Legacy app links using `Bug: ...` are also accepted. Example: `[Bug] SFTP upload fails on Windows`'
+              );
+            }
+
+            if (body.length < 120) {
+              errors.push(
+                'Body is too short. Please use the Bug Report or Feature Request template and fill in all required fields.'
+              );
+            }
+
+            const templateMarkers = [
+              'Steps to reproduce',
+              'Expected behavior',
+              'Actual behavior',
+              'Describe the problem',
+              'Problem / pain point',
+              'Proposed solution',
+              'Operating system',
+            ];
+            const hasTemplateStructure = templateMarkers.some((marker) =>
+              body.includes(marker)
+            );
+            if (!hasTemplateStructure) {
+              errors.push(
+                'Body does not look like it came from an issue template. Choose **Bug Report** or **Feature Request** when opening an issue.'
+              );
+            }
+
+            const labels = new Set(
+              (issue.labels || []).map((label) =>
+                typeof label === 'string' ? label : label.name
+              )
+            );
+
+            if (errors.length === 0) {
+              if (
+                issue.state === 'closed' &&
+                labels.has('invalid-format')
+              ) {
+                labels.delete('invalid-format');
+                await github.rest.issues.update({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  issue_number: issue.number,
+                  state: 'open',
+                  labels: [...labels],
+                });
+                await github.rest.issues.createComment({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  issue_number: issue.number,
+                  body: '<!-- issue-format-bot --> Format looks good now. Reopening this issue.',
+                });
+              }
+              core.info('Issue format OK');
+              return;
+            }
+
+            const issueNumber = issue.number;
+            const marker = '<!-- issue-format-bot -->';
+            const bodyText = [
+              marker,
+              '## Issue format check failed',
+              '',
+              'This issue was closed automatically because it does not follow the required format.',
+              '',
+              ...errors.map((e) => `- ${e}`),
+              '',
+              '### How to resubmit',
+              '',
+              '1. Go to [New Issue](https://github.com/binaricat/Netcatty/issues/new/choose)',
+              '2. Pick **Bug Report** or **Feature Request**',
+              '3. Fill in every required field',
+              '4. Keep the `[Bug]` or `[Feature]` prefix in the title and add a clear summary after it (older app versions may use `Bug: ...`)',
+              '',
+              'For questions and open-ended discussion, use [GitHub Discussions](https://github.com/binaricat/Netcatty/discussions) instead.',
+              '',
+              'If you believe this was a mistake, reply here after fixing the title/body and a maintainer can reopen.',
+            ].join('\n');
+
+            const { data: comments } = await github.rest.issues.listComments({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: issueNumber,
+              per_page: 100,
+            });
+            const alreadyNotified = comments.some((c) =>
+              (c.body || '').includes(marker)
+            );
+
+            if (!alreadyNotified) {
+              await github.rest.issues.createComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: issueNumber,
+                body: bodyText,
+              });
+            }
+
+            labels.add('invalid-format');
+
+            await github.rest.issues.update({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: issueNumber,
+              state: 'closed',
+              state_reason: 'not_planned',
+              labels: [...labels],
+            });
diff --git a/components/SettingsApplicationTab.tsx b/components/SettingsApplicationTab.tsx
index ce578322..5f610349 100644
--- a/components/SettingsApplicationTab.tsx
+++ b/components/SettingsApplicationTab.tsx
@@ -16,28 +16,49 @@ type AppInfo = {
 };
 
 const REPO_URL = "https://github.com/binaricat/Netcatty";
+const BUG_REPORT_TEMPLATE = "bug_report.yml";
 
-const buildIssueUrl = (appInfo: AppInfo) => {
-  const title = "Bug: ";
-  const bodyLines = [
-    "## Describe the problem",
-    "",
-    "## Steps to reproduce",
-    "1.",
-    "",
-    "## Expected behavior",
-    "",
-    "## Actual behavior",
-    "",
-    "## Environment",
-    `- App: ${appInfo.name} ${appInfo.version}`,
-    `- Platform: ${appInfo.platform || "unknown"}`,
-    `- UA: ${typeof navigator !== "undefined" ? navigator.userAgent : "unknown"}`,
-  ];
+const mapIssuePlatform = (platform?: string) => {
+  switch (platform) {
+    case "darwin":
+      return "macOS";
+    case "win32":
+      return "Windows";
+    case "linux":
+      return "Linux";
+    default:
+      return undefined;
+  }
+};
+
+/** Opens GitHub's Bug Report issue form with fields prefilled from the running app. */
+export const buildIssueUrl = (appInfo: AppInfo) => {
   const params = new URLSearchParams({
-    title,
-    body: bodyLines.join("\n"),
+    template: BUG_REPORT_TEMPLATE,
+    title: "[Bug] ",
   });
+
+  if (appInfo.version) {
+    params.set("version", appInfo.version);
+  }
+
+  const platform = mapIssuePlatform(appInfo.platform);
+  if (platform) {
+    params.set("platform", platform);
+  }
+
+  const installSource =
+    appInfo.version === "0.0.0"
+      ? "Built from source (npm run dev / pack)"
+      : "GitHub Release (.dmg / .exe / .AppImage / .deb)";
+  params.set("install_source", installSource);
+
+  const ua = typeof navigator !== "undefined" ? navigator.userAgent : "unknown";
+  params.set(
+    "logs",
+    `Reported from Netcatty Settings (${appInfo.name} ${appInfo.version || "unknown"}).\n\nUser-Agent: ${ua}`,
+  );
+
   return `${REPO_URL}/issues/new?${params.toString()}`;
 };