diff --git a/src/core/admin.py b/src/core/admin.py
index ceedbab5..eb7ed592 100644
--- a/src/core/admin.py
+++ b/src/core/admin.py
@@ -11,7 +11,7 @@
 
 from core.marker_utils import generate_marker_variants
 from core.media_dimensions import extract_dimensions
-from core.models import Artwork, Exhibit, Marker, Object, Sound
+from core.models import Artwork, Exhibit, Feedback, Marker, Object, Sound
 from core.spritesheet_converter import gif_to_spritesheet
 from core.utils import filesizeformat, get_admin_url
 
@@ -418,3 +418,12 @@ def _owner(self, obj):
 
     def preview(self, obj):
         return format_html(obj.as_html(), "")
+
+
+@admin.register(Feedback)
+class FeedbackAdmin(admin.ModelAdmin):
+    list_display = ["__str__", "kind", "email", "handled", "created"]
+    list_filter = ["kind", "handled"]
+    list_editable = ["handled"]
+    search_fields = ["description", "email"]
+    readonly_fields = ["kind", "description", "email", "attachment", "created"]
diff --git a/src/core/forms.py b/src/core/forms.py
index b9aa69f8..44b5dd9c 100644
--- a/src/core/forms.py
+++ b/src/core/forms.py
@@ -20,7 +20,7 @@
     strip_existing_border,
 )
 from core.media_dimensions import extract_dimensions
-from core.models import Artwork, Marker, ObjectExtensions
+from core.models import Artwork, Marker, ObjectExtensions, Feedback
 from core.upload_limits import (
     AUDIO,
     OBJECT_KIND_BY_EXTENSION,
@@ -93,6 +93,8 @@ def render(self, name, value, attrs=None, renderer=None):
         return mark_safe(template)
 
 
+# Feedback attachments come from anonymous visitors, so keep them small.
+MAX_FEEDBACK_ATTACHMENT_BYTES = 5 * 1024 * 1024
 # Markers are rasterised and uploaded to the AR viewer as textures, so an
 # upload far larger than a 4K texture costs storage and marker-generation time
 # without improving detection. Both sides are capped at this value.
@@ -606,3 +608,40 @@ def save(self, *args, **kwargs):
         self.instance.file_extension = self.instance.file.name.split(".")[-1].lower()
 
         return super(SoundForm, self).save(*args, **kwargs)
+
+
+class FeedbackForm(forms.ModelForm):
+    """Public bug report / feature request form linked from the footer."""
+
+    class Meta:
+        model = Feedback
+        fields = ("kind", "description", "email", "attachment")
+        widgets = {
+            "description": forms.Textarea(
+                attrs={
+                    "rows": 6,
+                    "placeholder": _("What happened, and what did you expect?"),
+                }
+            ),
+            "email": forms.EmailInput(
+                attrs={"placeholder": _("Your e-mail (optional, so we can reply)")}
+            ),
+        }
+
+    def clean_attachment(self):
+        attachment = self.cleaned_data.get("attachment")
+        if not attachment:
+            return None
+
+        allowed_extensions = ["png", "jpg", "jpeg", "gif", "webp", "pdf", "txt", "log"]
+        extension = getattr(attachment, "name", "").split(".")[-1].lower()
+        if extension not in allowed_extensions:
+            raise forms.ValidationError(
+                _("Attach a screenshot (PNG, JPG, GIF, WebP), a PDF or a text log.")
+            )
+        if attachment.size > MAX_FEEDBACK_ATTACHMENT_BYTES:
+            raise forms.ValidationError(
+                _("Attachments are limited to %(limit)s MB."),
+                params={"limit": MAX_FEEDBACK_ATTACHMENT_BYTES // (1024 * 1024)},
+            )
+        return attachment
diff --git a/src/core/jinja2/core/feedback.jinja2 b/src/core/jinja2/core/feedback.jinja2
new file mode 100644
index 00000000..f8a8c13f
--- /dev/null
+++ b/src/core/jinja2/core/feedback.jinja2
@@ -0,0 +1,28 @@
+{% extends "core/focused_layout.jinja2" %}
+{% block content %}
+    <main class="container feedback">
+        {% if submitted %}
+            <h1>{{ _("Thank you!") }}</h1>
+            <p>{{ _("Your report was received. If you left an e-mail, we may get back to you.") }}</p>
+            <a class="button" href="{{ url('home') }}">{{ _("Back to Jandig") }}</a>
+        {% else %}
+            <h1>{{ _("Report a bug or request a feature") }}</h1>
+            <p>
+                {{ _("Found something broken, or missing? Tell us here — no GitHub account needed.") }}
+            </p>
+            <form method="post" enctype="multipart/form-data" novalidate>
+                {{ csrf_input }}
+                {% for field in form %}
+                    <div class="form-field">
+                        <label for="{{ field.id_for_label }}">{{ field.label }}</label>
+                        {{ field }}
+                        {% if field.help_text %}<small>{{ field.help_text }}</small>{% endif %}
+                        {{ field.errors }}
+                    </div>
+                {% endfor %}
+                {{ form.non_field_errors() }}
+                <button type="submit" class="button">{{ _("Send") }}</button>
+            </form>
+        {% endif %}
+    </main>
+{% endblock content %}
diff --git a/src/core/jinja2/core/footer.jinja2 b/src/core/jinja2/core/footer.jinja2
index af13af06..6765d2cd 100644
--- a/src/core/jinja2/core/footer.jinja2
+++ b/src/core/jinja2/core/footer.jinja2
@@ -1,6 +1,7 @@
 <section class="footer">
     <div class="container flex">
         <a href="{{ url('community') }}" class="useful">{{ _("About Us") }}</a>
+        <a href="{{ url('feedback') }}" class="useful">{{ _("Report a bug") }}</a>
         <div class="social flex">
             <a href="https://www.instagram.com/jandig.art/"
                class="instagram"
diff --git a/src/core/migrations/0048_feedback.py b/src/core/migrations/0048_feedback.py
new file mode 100644
index 00000000..4c755036
--- /dev/null
+++ b/src/core/migrations/0048_feedback.py
@@ -0,0 +1,71 @@
+# Generated by Django 6.1.1 on 2026-09-17 15:21
+
+import core.models
+import django_extensions.db.fields
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("core", "0047_remove_artwork_insert_insert_and_more"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="Feedback",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                "created",
+                models.DateTimeField(auto_now_add=True, db_index=True),
+                ),
+                (
+                "modified",
+                models.DateTimeField(auto_now=True, db_index=True)
+                ),
+                (
+                    "kind",
+                    models.CharField(
+                        choices=[
+                            ("bug", "Report a bug"),
+                            ("feature", "Request a feature"),
+                        ],
+                        db_index=True,
+                        default="bug",
+                        max_length=10,
+                    ),
+                ),
+                ("description", models.TextField(max_length=5000)),
+                ("email", models.EmailField(blank=True, max_length=254)),
+                (
+                    "attachment",
+                    models.FileField(
+                        blank=True,
+                        null=True,
+                        upload_to=core.models.feedback_attachment_path,
+                    ),
+                ),
+                (
+                    "handled",
+                    models.BooleanField(
+                        default=False,
+                        help_text="Tick once this report has been triaged.",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name_plural": "feedback",
+                "get_latest_by": "modified",
+                "abstract": False,
+            },
+        ),
+    ]
diff --git a/src/core/models.py b/src/core/models.py
index ca591981..da31fbc5 100644
--- a/src/core/models.py
+++ b/src/core/models.py
@@ -786,3 +786,47 @@ def exhibit_sounds_changed(sender, instance, action, pk_set, **kwargs):
             # post_clear doesn't provide pk_set; recalculate all sounds
             for sound in Sound.objects.filter(in_use=True):
                 _recalculate_sound_flags(sound.pk)
+
+
+class FeedbackKinds(models.TextChoices):
+    BUG = "bug", _("Report a bug")
+    FEATURE = "feature", _("Request a feature")
+
+
+def feedback_attachment_path(instance, filename):
+    """Upload path: feedback/<uuid>.<ext> — the name comes from the public."""
+    ext = filename.rsplit(".", 1)[-1].lower() if "." in filename else ""
+    name = uuid4().hex
+    return f"feedback/{name}.{ext}" if ext else f"feedback/{name}"
+
+
+class Feedback(models.Model):
+    """A bug report or feature request sent from the site's feedback form.
+
+    Stored rather than e-mailed so nothing is lost if mail delivery is
+    misconfigured, and so reports remain searchable in the admin.
+    """
+
+    kind = models.CharField(
+        max_length=10,
+        choices=FeedbackKinds.choices,
+        default=FeedbackKinds.BUG,
+        db_index=True,
+    )
+    description = models.TextField(max_length=5000)
+    email = models.EmailField(blank=True)
+    attachment = models.FileField(
+        upload_to=feedback_attachment_path, null=True, blank=True
+    )
+    handled = models.BooleanField(
+        default=False, help_text="Tick once this report has been triaged."
+    )
+    created = models.DateTimeField(auto_now_add=True, db_index=True)
+    modified = models.DateTimeField(auto_now=True, db_index=True)
+
+    class Meta():
+        verbose_name_plural = "feedback"
+        get_latest_by = "modified"
+
+    def __str__(self):
+        return f"{self.get_kind_display()} #{self.pk}"
diff --git a/src/core/tests/test_feedback_form.py b/src/core/tests/test_feedback_form.py
new file mode 100644
index 00000000..77b39648
--- /dev/null
+++ b/src/core/tests/test_feedback_form.py
@@ -0,0 +1,110 @@
+import io
+
+from django.core.files.uploadedfile import SimpleUploadedFile
+from django.test import TestCase
+from django.urls import reverse
+from PIL import Image
+
+from core.forms import MAX_FEEDBACK_ATTACHMENT_BYTES
+from core.models import Feedback, FeedbackKinds
+
+
+def screenshot(name="shot.png"):
+    buffer = io.BytesIO()
+    Image.new("RGB", (8, 8), "white").save(buffer, format="PNG")
+    buffer.seek(0)
+    return SimpleUploadedFile(name, buffer.read(), content_type="image/png")
+
+
+class TestFeedbackForm(TestCase):
+    def test_the_form_is_reachable_without_an_account(self):
+        response = self.client.get(reverse("feedback"))
+
+        assert response.status_code == 200
+
+    def test_a_bug_report_is_stored(self):
+        response = self.client.post(
+            reverse("feedback"),
+            {
+                "kind": FeedbackKinds.BUG,
+                "description": "The marker preview never loads on Firefox.",
+                "email": "someone@example.com",
+            },
+        )
+
+        assert response.status_code == 200
+        report = Feedback.objects.get()
+        assert report.kind == FeedbackKinds.BUG
+        assert report.email == "someone@example.com"
+        assert report.handled is False
+
+    def test_a_feature_request_is_stored_with_its_own_kind(self):
+        self.client.post(
+            reverse("feedback"),
+            {
+                "kind": FeedbackKinds.FEATURE,
+                "description": "Let me sort exhibits by name.",
+            },
+        )
+
+        assert Feedback.objects.get().kind == FeedbackKinds.FEATURE
+
+    def test_the_email_is_optional(self):
+        self.client.post(
+            reverse("feedback"),
+            {"kind": FeedbackKinds.BUG, "description": "Something broke."},
+        )
+
+        assert Feedback.objects.get().email == ""
+
+    def test_a_description_is_required(self):
+        self.client.post(reverse("feedback"), {"kind": FeedbackKinds.BUG})
+
+        assert not Feedback.objects.exists()
+
+    def test_an_attachment_is_stored_under_a_generated_name(self):
+        self.client.post(
+            reverse("feedback"),
+            {
+                "kind": FeedbackKinds.BUG,
+                "description": "See the screenshot.",
+                "attachment": screenshot("Captura de tela #1.png"),
+            },
+        )
+        report = Feedback.objects.get()
+
+        assert report.attachment.name.startswith("feedback/")
+        assert report.attachment.name.endswith(".png")
+        assert "Captura" not in report.attachment.name
+
+    def test_an_executable_attachment_is_rejected(self):
+        self.client.post(
+            reverse("feedback"),
+            {
+                "kind": FeedbackKinds.BUG,
+                "description": "Trying to attach a binary.",
+                "attachment": SimpleUploadedFile("payload.exe", b"MZ\x00\x00"),
+            },
+        )
+
+        assert not Feedback.objects.exists()
+
+    def test_an_oversized_attachment_is_rejected(self):
+        oversized = SimpleUploadedFile(
+            "huge.png", b"\x00" * (MAX_FEEDBACK_ATTACHMENT_BYTES + 1)
+        )
+        self.client.post(
+            reverse("feedback"),
+            {
+                "kind": FeedbackKinds.BUG,
+                "description": "Attaching something enormous.",
+                "attachment": oversized,
+            },
+        )
+
+        assert not Feedback.objects.exists()
+
+    def test_the_footer_links_to_the_form(self):
+        response = self.client.get(reverse("home"))
+
+        assert reverse("feedback").encode() in response.content
diff --git a/src/core/urls.py b/src/core/urls.py
index c35b9c24..871721e7 100644
--- a/src/core/urls.py
+++ b/src/core/urls.py
@@ -31,6 +31,7 @@
     exhibit_detail,
     exhibit_qrcode,
     exhibit_select,
+    feedback,
     get_element,
     marker_preview,
     marker_upload,
@@ -57,6 +58,7 @@
     path("community/", community, name="community"),
     path("content/delete/", delete, name="delete-content"),
     path("documentation/", documentation, name="documentation"),
+    path("feedback/", feedback, name="feedback"),
     path("privacy/", privacy_policy, name="privacy-policy"),
     path("exhibit_select/", exhibit_select, name="exhibit_select"),
     path("exhibit/", exhibit_detail, name="exhibit-detail"),
diff --git a/src/core/views/views.py b/src/core/views/views.py
index 3a9a62e2..cfd3bc80 100644
--- a/src/core/views/views.py
+++ b/src/core/views/views.py
@@ -18,6 +18,7 @@
     ArtworkForm,
     ExhibitForm,
     ExhibitSelectForm,
+    FeedbackForm,
     SoundForm,
     UploadMarkerForm,
     UploadObjectForm,
@@ -995,3 +996,16 @@ def ar_view(request):
     debug = request.GET.get("debug", "false").lower() == "true"
     ctx = {"artworks": exhibit.artworks.all(), "debug": debug}
     return render(request, "core/ar.jinja2", ctx)
+
+
+@require_http_methods(["GET", "POST"])
+def feedback(request):
+    """Public bug report / feature request form, linked from the footer."""
+    if request.method == "POST":
+        form = FeedbackForm(request.POST, request.FILES)
+        if form.is_valid():
+            form.save()
+            return render(request, "core/feedback.jinja2", {"submitted": True})
+    else:
+        form = FeedbackForm()
+    return render(request, "core/feedback.jinja2", {"form": form})