diff --git a/docs/admin/object.rst b/docs/admin/object.rst
index e23f4254..2712e0b2 100644
--- a/docs/admin/object.rst
+++ b/docs/admin/object.rst
@@ -64,3 +64,35 @@ corrected in the "Correction" field of the next record.
 
 In the Objects API you always see one record, which contains data of a certain time (by default
 the latest one). However in the admin interface you can see all the records created for the object.
+
+
+Search objects in the admin
+---------------------------
+
+You can search by **UUID** or inside object data using the format:
+
+.. code-block:: text
+
+    field__operator__value
+
+Operators:
+
+- ``exact`` - exact match  
+- ``icontains`` - case insensitive substring match  
+- ``gt`` - greater than  
+- ``gte`` - greater than or equal to  
+- ``lt`` - less than  
+- ``lte`` - less than or equal to
+
+Examples:
+
+- ``0233da1f-32c1-4e7d-9896-2eecc7d24288`` - searching directly by object UUID  
+- ``id__exact__1``  
+- ``naam__icontains__boom``  
+- ``date__gt__2025-01-01``  
+- ``date__gte__2025-06-15``  
+- ``date__lt__2025-12-31``  
+- ``date__lte__2025-06-15``  
+- ``location__city__exact__Amsterdam``  
+- ``location__region__icontains__Noord``
+
diff --git a/docs/examples/objecttype-boom.rst b/docs/examples/objecttype-boom.rst
index fdbaae64..743be797 100644
--- a/docs/examples/objecttype-boom.rst
+++ b/docs/examples/objecttype-boom.rst
@@ -12,7 +12,7 @@ The "Boom" objecttype is based on the open source `Gemeentelijk Gegevensmodel`_
 A `small script`_ was used to convert the GGM EAP model to JSON schema.
 
 .. _`Gemeentelijk Gegevensmodel`: https://github.com/Gemeente-Delft/Gemeentelijk-Gegevensmodel
-.. _`Informatiemodel Beheer Openbare Ruimte`: https://www.crow.nl/Onderwerpen/Assetmanagement-en-beheer-openbare-ruimte/Data-en-informatie/imbor-de-standaard-voor-beheer-van-de-openbare-ruimte
+.. _`Informatiemodel Beheer Openbare Ruimte`: https://www.crow.nl/Onderwerpen/assetmanagement-en-beheer-openbare-ruimte/Data-en-informatie/imbor-de-standaard-voor-beheer-van-de-openbare-ruimte
 .. _`Basisregistratie Grootschalige Topografie`: https://www.kadaster.nl/zakelijk/registraties/basisregistraties/bgt
 .. _`Informatiemodel geografie`: https://www.geonovum.nl/geo-standaarden/bgt-imgeo
 .. _`small script`: https://github.com/maykinmedia/imvertor-lite
diff --git a/src/objects/api/v2/filters.py b/src/objects/api/v2/filters.py
index 25aac9c1..e97b851f 100644
--- a/src/objects/api/v2/filters.py
+++ b/src/objects/api/v2/filters.py
@@ -78,12 +78,19 @@ def build_nested_dict(path: str, value: Any) -> dict[str, Any]:
     return nested
 
 
-def filter_data_attr_value_part(value_part: str, queryset: QuerySet) -> QuerySet:
+def filter_queryset_by_data_attr(
+    queryset: QuerySet,
+    key: str,
+    operator: str,
+    str_value: str,
+    field_prefix: str,
+) -> QuerySet:
     """
-    filter one value part for data_attr and data_attrs filters
+    Generic filter helper.
+    Can be used in API FilterSet or Admin search.
     """
-    variable, operator, str_value = value_part.rsplit("__", 2)
     real_value = string_to_value(str_value)
+    full_field = f"{field_prefix}__{key}" if key else field_prefix
 
     if operator == "exact":
         #  for exact operator try to filter on string and numeric values
@@ -93,26 +100,42 @@ def filter_data_attr_value_part(value_part: str, queryset: QuerySet) -> QuerySet
 
         query = Q()
         for val in in_vals:
-            nested_dict = build_nested_dict(variable, val)
-            query |= Q(data__contains=nested_dict)
+            nested_dict = build_nested_dict(key, val)
+            query |= Q(**{f"{field_prefix}__contains": nested_dict})
 
         # Make sure containment operator is used (`@>`) via __contains, to ensure the
         # GINIndex on `data` is utilized
         queryset = queryset.filter(query)
+
     elif operator == "icontains":
-        # icontains treats everything like strings
-        queryset = queryset.filter(**{f"data__{variable}__icontains": str_value})
+        queryset = queryset.filter(**{f"{full_field}__icontains": str_value})
+
     elif operator == "in":
         # in must be a list
         values = str_value.split("|")
-        queryset = queryset.filter(**{f"data__{variable}__in": values})
+        queryset = queryset.filter(**{f"{full_field}__in": values})
+
+    elif operator in ("gt", "gte", "lt", "lte"):
+        queryset = queryset.filter(**{f"{full_field}__{operator}": real_value})
 
     else:
-        # gt, gte, lt, lte operators
-        queryset = queryset.filter(**{f"data__{variable}__{operator}": real_value})
+        queryset = queryset.filter(**{f"{full_field}__icontains": str_value})
+
     return queryset
 
 
+def filter_data_attr_value_part(
+    value_part: str, queryset: QuerySet, field_prefix: str = "data"
+) -> QuerySet:
+    """
+    Wrapper to handle a single value part of data_attr or data_attrs.
+    """
+    key, operator, str_value = value_part.rsplit("__", 2)
+    return filter_queryset_by_data_attr(
+        queryset, key, operator, str_value, field_prefix=field_prefix
+    )
+
+
 class ObjectRecordFilterForm(forms.Form):
     def clean(self):
         cleaned_data = super().clean()
diff --git a/src/objects/core/admin.py b/src/objects/core/admin.py
index 1ba7977d..9fd84cef 100644
--- a/src/objects/core/admin.py
+++ b/src/objects/core/admin.py
@@ -7,11 +7,13 @@
 from django.contrib.gis.db.models import GeometryField
 from django.http import HttpRequest, JsonResponse
 from django.urls import path
+from django.utils.translation import gettext_lazy as _
 
 import requests
 import structlog
 from vng_api_common.utils import get_help_text
 
+from objects.api.v2.filters import filter_queryset_by_data_attr
 from objects.utils.client import get_objecttypes_client
 
 from .models import Object, ObjectRecord, ObjectType
@@ -141,7 +143,7 @@ class ObjectAdmin(admin.ModelAdmin):
         "modified_on",
         "created_on",
     )
-    search_fields = ("uuid", "records__data")
+    search_fields = ("uuid",)
     inlines = (ObjectRecordInline,)
     list_filter = (ObjectTypeFilter, "created_on", "modified_on")
 
@@ -149,10 +151,52 @@ def get_search_fields(self, request: HttpRequest) -> Sequence[str]:
         if settings.OBJECTS_ADMIN_SEARCH_DISABLED:
             return ()
 
-        return (
-            "uuid",
-            "records__data",
+        return ("uuid",)
+
+    change_list_template = "admin/core/object_change_list.html"
+
+    def changelist_view(self, request, extra_context=None):
+        extra_context = extra_context or {}
+        extra_context["toggle_show"] = _("Show search instructions")
+        extra_context["toggle_hide"] = _("Hide search instructions")
+        extra_context["search_enabled"] = bool(self.get_search_fields(request))
+        return super().changelist_view(request, extra_context=extra_context)
+
+    def get_search_results(self, request, queryset, search_term):
+        VALID_OPERATORS = {"exact", "icontains", "in", "gt", "gte", "lt", "lte"}
+        DEFAULT_OPERATOR = "icontains"
+
+        if settings.OBJECTS_ADMIN_SEARCH_DISABLED:
+            return queryset, False
+
+        if "__" not in search_term:
+            return super().get_search_results(request, queryset, search_term)
+
+        parts = search_term.rsplit("__", 2)
+
+        if len(parts) == 3 and parts[1] in VALID_OPERATORS:
+            key, operator, str_value = parts
+        elif len(parts) == 3:
+            key = "__".join(parts[:-1])
+            operator = DEFAULT_OPERATOR
+            str_value = parts[-1]
+        elif len(parts) == 2:
+            key, str_value = parts
+            operator = DEFAULT_OPERATOR
+        else:
+            return super().get_search_results(request, queryset, search_term)
+
+        if not key or not str_value:
+            return super().get_search_results(request, queryset, search_term)
+
+        queryset = filter_queryset_by_data_attr(
+            queryset,
+            key.strip(),
+            operator,
+            str_value.strip(),
+            field_prefix="records__data",
         )
+        return queryset.distinct(), False
 
     @admin.display(description="Object type UUID")
     def get_object_type_uuid(self, obj):
diff --git a/src/objects/core/tests/test_admin.py b/src/objects/core/tests/test_admin.py
index edd78eab..d09fd4fe 100644
--- a/src/objects/core/tests/test_admin.py
+++ b/src/objects/core/tests/test_admin.py
@@ -1,3 +1,5 @@
+import re
+
 from django.test import override_settings, tag
 from django.urls import reverse
 
@@ -72,7 +74,9 @@ def get_num_results(response) -> int:
 
             self.assertIsNotNone(response.html.find("input", {"id": "searchbar"}))
 
-            response = self.app.get(list_url, params={"q": "bar"}, user=self.user)
+            response = self.app.get(
+                list_url, params={"q": "foo__icontains__bar"}, user=self.user
+            )
 
             self.assertEqual(get_num_results(response), 1)
 
@@ -126,3 +130,119 @@ def test_add_new_objectrecord(self):
             response = form.submit()
 
         self.assertEqual(object.records.count(), 1)
+
+    @tag("gh-621")
+    def test_object_admin_search_json_key_operator_value(self):
+        object1 = ObjectFactory()
+        ObjectRecordFactory(
+            object=object1,
+            data={"id_nummer": 1, "naam": "Boomgaard", "plantDate": "2025-01-01"},
+        )
+        object2 = ObjectFactory()
+        ObjectRecordFactory(
+            object=object2,
+            data={"id_nummer": 2, "naam": "Appelboom", "plantDate": "2025-06-15"},
+        )
+        object3 = ObjectFactory()
+        ObjectRecordFactory(
+            object=object3,
+            data={"id_nummer": 3, "naam": "Peren", "plantDate": "2025-12-31"},
+        )
+        object4 = ObjectFactory()
+        ObjectRecordFactory(
+            object=object4,
+            data={
+                "id_nummer": 4,
+                "naam": "Kersen",
+                "plantDate": "2025-07-20",
+                "location": {"city": "Amsterdam", "region": "Noord-Holland"},
+            },
+        )
+
+        list_url = reverse("admin:core_object_changelist")
+
+        def get_row_pks(response):
+            rows = response.html.select("#result_list tbody tr")
+            pks = []
+            for row in rows:
+                href = row.select_one("th a")["href"]
+                pks.append(int(re.search(r"\d+", href).group()))
+            return pks
+
+        with self.subTest("Exact match"):
+            response = self.app.get(
+                list_url, params={"q": "id_nummer__exact__1"}, user=self.user
+            )
+            self.assertEqual(get_row_pks(response), [object1.pk])
+
+        with self.subTest("Nested JSON value match"):
+            response = self.app.get(
+                list_url,
+                params={"q": "location__city__exact__Amsterdam"},
+                user=self.user,
+            )
+            self.assertEqual(get_row_pks(response), [object4.pk])
+
+        with self.subTest("Nested"):
+            response = self.app.get(
+                list_url,
+                params={"q": "location__city__Amsterdam"},
+                user=self.user,
+            )
+            self.assertEqual(get_row_pks(response), [object4.pk])
+
+        with self.subTest("icontains"):
+            response = self.app.get(
+                list_url, params={"q": "naam__icontains__boom"}, user=self.user
+            )
+            self.assertCountEqual(get_row_pks(response), [object1.pk, object2.pk])
+
+        with self.subTest("Default operator"):
+            response = self.app.get(
+                list_url, params={"q": "naam__Boomgaard"}, user=self.user
+            )
+            self.assertEqual(get_row_pks(response), [object1.pk])
+
+        with self.subTest("Numeric comparison gt"):
+            response = self.app.get(
+                list_url, params={"q": "id_nummer__gt__1"}, user=self.user
+            )
+            self.assertCountEqual(
+                get_row_pks(response), [object2.pk, object3.pk, object4.pk]
+            )
+
+        with self.subTest("Date exact"):
+            response = self.app.get(
+                list_url, params={"q": "plantDate__exact__2025-06-15"}, user=self.user
+            )
+            self.assertEqual(get_row_pks(response), [object2.pk])
+
+        with self.subTest("Date gt"):
+            response = self.app.get(
+                list_url, params={"q": "plantDate__gt__2025-01-01"}, user=self.user
+            )
+            self.assertCountEqual(
+                get_row_pks(response), [object2.pk, object3.pk, object4.pk]
+            )
+
+        with self.subTest("Date lt"):
+            response = self.app.get(
+                list_url, params={"q": "plantDate__lt__2025-12-01"}, user=self.user
+            )
+            self.assertCountEqual(
+                get_row_pks(response), [object1.pk, object2.pk, object4.pk]
+            )
+
+        with self.subTest("Date comparison gte"):
+            response = self.app.get(
+                list_url, params={"q": "plantDate__gte__2025-06-15"}, user=self.user
+            )
+            self.assertCountEqual(
+                get_row_pks(response), [object2.pk, object3.pk, object4.pk]
+            )
+
+        with self.subTest("Date comparison lte"):
+            response = self.app.get(
+                list_url, params={"q": "plantDate__lte__2025-06-15"}, user=self.user
+            )
+            self.assertCountEqual(get_row_pks(response), [object1.pk, object2.pk])
diff --git a/src/objects/js/components/admin/permissions/index.js b/src/objects/js/components/admin/permissions/index.js
index af810d48..bb3d5258 100644
--- a/src/objects/js/components/admin/permissions/index.js
+++ b/src/objects/js/components/admin/permissions/index.js
@@ -18,7 +18,7 @@ const mount = () => {
             formData={jsonScriptToVar('form-data')}
         />,
     );
+     
 };
 
-
 mount();
diff --git a/src/objects/js/components/admin/search-toggle.js b/src/objects/js/components/admin/search-toggle.js
new file mode 100644
index 00000000..2e912609
--- /dev/null
+++ b/src/objects/js/components/admin/search-toggle.js
@@ -0,0 +1,23 @@
+function mountSearchHelpToggle() {
+    const toggleLink = document.getElementById("toggle-search-help");
+    const content = document.getElementById("search-help-content");
+
+    if (!toggleLink || !content) return;
+
+    const showText = toggleLink.dataset.showText;
+    const hideText = toggleLink.dataset.hideText;
+
+    toggleLink.addEventListener("click", function (e) {
+        e.preventDefault();
+
+        if (content.style.display === "none" || content.style.display === "") {
+            content.style.display = "block";
+            toggleLink.textContent = hideText;
+        } else {
+            content.style.display = "none";
+            toggleLink.textContent = showText;
+        }
+    });
+}
+
+document.addEventListener("DOMContentLoaded", mountSearchHelpToggle);
diff --git a/src/objects/js/components/index.js b/src/objects/js/components/index.js
index 76bdb41e..6482b450 100644
--- a/src/objects/js/components/index.js
+++ b/src/objects/js/components/index.js
@@ -1,3 +1,5 @@
 // Use this file to include individual components.
 import './admin/permissions';
+import './admin/search-toggle';
 import './nav/';
+
diff --git a/src/objects/templates/admin/core/object_change_list.html b/src/objects/templates/admin/core/object_change_list.html
new file mode 100644
index 00000000..eadc28d8
--- /dev/null
+++ b/src/objects/templates/admin/core/object_change_list.html
@@ -0,0 +1,53 @@
+{% extends "admin/change_list.html" %}
+{% load i18n %}
+{% block search %}
+
+{% if search_enabled %}
+<div style="margin-bottom: 10px;">
+    <div id="search-help-toggle-root"></div>
+
+    <a href="#" id="toggle-search-help" data-show-text="{{ toggle_show }}" data-hide-text="{{ toggle_hide }}">
+        {% blocktranslate %}Search instructions{% endblocktranslate %}
+    </a>
+
+    <div id="search-help-content"
+        style="display: none; margin-top: 5px; padding: 5px 10px; border: 1px solid #ccc; background-color: #f9f9f9;">
+
+        {% blocktranslate trimmed %}
+        You can search by <strong>UUID</strong> or
+        <strong>search inside object data using the format:</strong>
+        <code>field__operator__value</code>.
+        {% endblocktranslate %}
+        <br>
+        {% blocktranslate %}Operators:{% endblocktranslate %}
+        <strong>exact</strong>,
+        <strong>icontains</strong>
+        {% blocktranslate %}(case insensitive substring match){% endblocktranslate %},
+        <strong>gt</strong>
+        {% blocktranslate %}(greater than){% endblocktranslate %},
+        <strong>gte</strong>
+        {% blocktranslate %}(greater than or equal to){% endblocktranslate %},
+        <strong>lt</strong>
+        {% blocktranslate %}(less than){% endblocktranslate %},
+        <strong>lte</strong>
+        {% blocktranslate %}(less than or equal to){% endblocktranslate %}.
+        <br>
+        {% blocktranslate %}Examples:{% endblocktranslate %}
+        <ul>
+            <li><code>0233da1f-32c1-4e7d-9896-2eecc7d24288</code></li>
+            {% blocktranslate %} (searching directly by object UUID) {% endblocktranslate %}
+            <li><code>id__exact__1</code></li>
+            <li><code>naam__icontains__boom</code></li>
+            <li><code>date__gt__2025-01-01</code></li>
+            <li><code>date__gte__2025-06-15</code></li>
+            <li><code>date__lt__2025-12-31</code></li>
+            <li><code>date__lte__2025-06-15</code></li>
+            <li><code>location__city__exact__Amsterdam</code></li>
+            <li><code>location__region__icontains__Noord</code></li>
+        </ul>
+    </div>
+</div>
+{% endif %}
+
+{{ block.super }}
+{% endblock %}
\ No newline at end of file