diff --git a/blocking.py b/blocking.py
index 05f68dd93..3b254d086 100644
--- a/blocking.py
+++ b/blocking.py
@@ -1460,3 +1460,101 @@ def get_cw_list_variable(list_name: str) -> str:
     """Returns the variable associated with a CW list
     """
     return 'list' + list_name.replace(' ', '').replace("'", '')
+
+
+def import_blocks(base_dir: str, nickname: str, domain: str,
+                  filename: str) -> bool:
+    """Imports blocked domains for a given account
+    """
+    lines = []
+    try:
+        with open(filename, 'r', encoding='utf-8') as fp_blocks:
+            lines = fp_blocks.read().splitlines()
+    except OSError:
+        print('EX: unable to import blocked instances from file ' +
+              filename)
+    if not lines:
+        return False
+    if len(lines) < 2:
+        return False
+    if not lines[0].startswith('#domain,#') or \
+       'comment' not in lines[0]:
+        return False
+    fieldnames = lines[0].split(',')
+    comment_field_index = 0
+    for field_str in fieldnames:
+        if 'comment' in field_str:
+            break
+        comment_field_index += 1
+    if comment_field_index >= len(fieldnames):
+        return False
+
+    account_directory = acct_dir(base_dir, nickname, domain)
+    blocking_filename = \
+        account_directory + '/blocking.txt'
+    blocking_reasons_filename = \
+        account_directory + '/blocking_reasons.txt'
+
+    existing_lines = []
+    if os.path.isfile(blocking_filename):
+        try:
+            with open(blocking_filename, 'r', encoding='utf-8') as fp_blocks:
+                existing_lines = fp_blocks.read().splitlines()
+        except OSError:
+            print('EX: ' +
+                  'unable to import existing blocked instances from file ' +
+                  blocking_filename)
+    existing_reasons = []
+    if os.path.isfile(blocking_reasons_filename):
+        try:
+            with open(blocking_reasons_filename,
+                      'r', encoding='utf-8') as fp_blocks:
+                existing_reasons = fp_blocks.read().splitlines()
+        except OSError:
+            print('EX: ' +
+                  'unable to import existing ' +
+                  'blocked instance reasons from file ' +
+                  blocking_reasons_filename)
+
+    append_blocks = []
+    append_reasons = []
+    for line_str in lines:
+        if line_str.startswith('#'):
+            continue
+        block_fields = line_str.split(',')
+        blocked_domain_name = block_fields[0].strip()
+        if ' ' in blocked_domain_name or \
+           '.' not in blocked_domain_name:
+            continue
+        if blocked_domain_name in existing_lines:
+            # already blocked
+            continue
+        append_blocks.append(blocked_domain_name)
+        blocked_comment = block_fields[comment_field_index].strip()
+        if blocked_comment:
+            if blocked_comment not in existing_reasons:
+                append_reasons.append(blocked_domain_name + ' ' +
+                                      blocked_comment)
+    if not append_blocks:
+        return True
+
+    try:
+        with open(blocking_filename, 'a+', encoding='utf-8') as fp_blocks:
+            for new_block in append_blocks:
+                fp_blocks.write(new_block + '\n')
+    except OSError:
+        print('EX: ' +
+              'unable to append imported blocks to ' +
+              blocking_filename)
+
+    try:
+        with open(blocking_reasons_filename, 'a+',
+                  encoding='utf-8') as fp_blocks:
+            for new_reason in append_reasons:
+                fp_blocks.write(new_reason + '\n')
+    except OSError:
+        print('EX: ' +
+              'unable to append imported block reasons to ' +
+              blocking_reasons_filename)
+
+    return True
diff --git a/daemon.py b/daemon.py
index 28f715512..5f72edc44 100644
--- a/daemon.py
+++ b/daemon.py
@@ -147,6 +147,7 @@ from media import replace_twitter
 from media import attach_media
 from media import path_is_video
 from media import path_is_audio
+from blocking import import_blocks
 from blocking import add_account_blocks
 from blocking import get_cw_list_variable
 from blocking import load_cw_lists
@@ -6172,6 +6173,7 @@ class PubServer(BaseHTTPRequestHandler):
                 'instanceLogo',
                 'left_col_image', 'right_col_image',
                 'submitImportFollows',
+                'submitImportBlocks',
                 'submitImportTheme'
             )
             profile_media_types_uploaded = {}
@@ -6220,6 +6222,10 @@ class PubServer(BaseHTTPRequestHandler):
                     filename_base = \
                         acct_dir(base_dir, nickname, domain) + \
                         '/import_following.csv'
+                elif m_type == 'submitImportBlocks':
+                    filename_base = \
+                        acct_dir(base_dir, nickname, domain) + \
+                        '/import_blocks.csv'
                 else:
                     filename_base = \
                         acct_dir(base_dir, nickname, domain) + \
@@ -6244,6 +6250,25 @@ class PubServer(BaseHTTPRequestHandler):
                               nickname)
                     continue
 
+                if m_type == 'submitImportBlocks':
+                    if os.path.isfile(filename_base):
+                        blocks_import_succeeded = False
+                        if import_blocks(base_dir, nickname, domain,
+                                         filename_base):
+                            print(nickname + ' imported blocks csv')
+                            blocks_import_succeeded = True
+                        try:
+                            os.remove(filename_base)
+                        except OSError:
+                            print('EX: ' +
+                                  'unable to remove imported blocks file ' +
+                                  filename_base)
+                        if blocks_import_succeeded:
+                            continue
+                    print('WARN: failed to import blocks from csv for ' +
+                          nickname)
+                    continue
+
                 if m_type == 'submitImportTheme':
                     if nickname == admin_nickname or \
                        is_artist(base_dir, nickname):
diff --git a/translations/ar.json b/translations/ar.json
index b81b52f08..4ebdfbdd9 100644
--- a/translations/ar.json
+++ b/translations/ar.json
@@ -617,5 +617,7 @@
     "Buy link": "رابط شراء",
     "Buy links are allowed from the following domains": "روابط الشراء مسموح بها من المجالات التالية",
     "Media license": "رخصة وسائل الإعلام",
-    "Media creator": "صانع الوسائط"
+    "Media creator": "صانع الوسائط",
+    "Import Blocks": "استيراد مثيلات محظورة",
+    "Export Blocks": "تصدير المثيلات المحظورة"
 }
diff --git a/translations/bn.json b/translations/bn.json
index c5032d6cc..633265209 100644
--- a/translations/bn.json
+++ b/translations/bn.json
@@ -617,5 +617,7 @@
     "Buy link": "সংযোগ কেনা",
     "Buy links are allowed from the following domains": "নিম্নলিখিত ডোমেনগুলি থেকে লিঙ্কগুলি কেনার অনুমতি দেওয়া হয়েছে",
     "Media license": "মিডিয়া লাইসেন্স",
-    "Media creator": "মিডিয়া নির্মাতা"
+    "Media creator": "মিডিয়া নির্মাতা",
+    "Import Blocks": "অবরুদ্ধ দৃষ্টান্ত আমদানি করুন",
+    "Export Blocks": "অবরুদ্ধ দৃষ্টান্ত রপ্তানি করুন"
 }
diff --git a/translations/ca.json b/translations/ca.json
index ad5ed9676..05ebf95ac 100644
--- a/translations/ca.json
+++ b/translations/ca.json
@@ -617,5 +617,7 @@
     "Buy link": "Enllaç de compra",
     "Buy links are allowed from the following domains": "Els enllaços de compra es permeten des dels dominis següents",
     "Media license": "Llicència de mitjans",
-    "Media creator": "Creador de mitjans"
+    "Media creator": "Creador de mitjans",
+    "Import Blocks": "Importa instàncies bloquejades",
+    "Export Blocks": "Exporta instàncies bloquejades"
 }
diff --git a/translations/cy.json b/translations/cy.json
index 8446a0fc9..a9fa19e6a 100644
--- a/translations/cy.json
+++ b/translations/cy.json
@@ -617,5 +617,7 @@
     "Buy link": "Prynu dolen",
     "Buy links are allowed from the following domains": "Caniateir dolenni prynu o'r parthau canlynol",
     "Media license": "Trwydded cyfryngau",
-    "Media creator": "Crëwr cyfryngau"
+    "Media creator": "Crëwr cyfryngau",
+    "Import Blocks": "Mewnforio Achosion wedi'u Rhwystro",
+    "Export Blocks": "Allforio Achosion wedi'u Rhwystro"
 }
diff --git a/translations/de.json b/translations/de.json
index e8c010de1..17659190a 100644
--- a/translations/de.json
+++ b/translations/de.json
@@ -617,5 +617,7 @@
     "Buy link": "Link kaufen",
     "Buy links are allowed from the following domains": "Kauflinks sind von den folgenden Domains erlaubt",
     "Media license": "Medienlizenz",
-    "Media creator": "Mediengestalter"
+    "Media creator": "Mediengestalter",
+    "Import Blocks": "Blockierte Instanzen importieren",
+    "Export Blocks": "Blockierte Instanzen exportieren"
 }
diff --git a/translations/el.json b/translations/el.json
index af95a1f9a..e50e8fa51 100644
--- a/translations/el.json
+++ b/translations/el.json
@@ -617,5 +617,7 @@
     "Buy link": "Σύνδεσμος αγοράς",
     "Buy links are allowed from the following domains": "Οι σύνδεσμοι αγοράς επιτρέπονται από τους παρακάτω τομείς",
     "Media license": "Άδεια ΜΜΕ",
-    "Media creator": "Δημιουργός πολυμέσων"
+    "Media creator": "Δημιουργός πολυμέσων",
+    "Import Blocks": "Εισαγωγή αποκλεισμένων παρουσιών",
+    "Export Blocks": "Εξαγωγή αποκλεισμένων παρουσιών"
 }
diff --git a/translations/en.json b/translations/en.json
index 278db6e9f..dca7d64b7 100644
--- a/translations/en.json
+++ b/translations/en.json
@@ -617,5 +617,7 @@
     "Buy link": "Buy link",
     "Buy links are allowed from the following domains": "Buy links are allowed from the following domains",
     "Media license": "Media license",
-    "Media creator": "Media creator"
+    "Media creator": "Media creator",
+    "Import Blocks": "Import Blocks",
+    "Export Blocks": "Export Blocks"
 }
diff --git a/translations/es.json b/translations/es.json
index 6e8a14a62..b30c32413 100644
--- a/translations/es.json
+++ b/translations/es.json
@@ -617,5 +617,7 @@
     "Buy link": "Enlace de compra",
     "Buy links are allowed from the following domains": "Se permiten enlaces de compra de los siguientes dominios",
     "Media license": "Licencia de medios",
-    "Media creator": "Creadora de medios"
+    "Media creator": "Creadora de medios",
+    "Import Blocks": "Importar instancias bloqueadas",
+    "Export Blocks": "Exportar instancias bloqueadas"
 }
diff --git a/translations/fa.json b/translations/fa.json
index f4895eb61..25f0fe70c 100644
--- a/translations/fa.json
+++ b/translations/fa.json
@@ -617,5 +617,7 @@
     "Buy link": "لینک خرید",
     "Buy links are allowed from the following domains": "لینک خرید از دامنه های زیر مجاز است",
     "Media license": "مجوز رسانه",
-    "Media creator": "سازنده رسانه"
+    "Media creator": "سازنده رسانه",
+    "Import Blocks": "وارد کردن موارد مسدود شده",
+    "Export Blocks": "نمونه های مسدود شده را صادر کنید"
 }
diff --git a/translations/fr.json b/translations/fr.json
index 4f84280c8..7b3d2bf19 100644
--- a/translations/fr.json
+++ b/translations/fr.json
@@ -617,5 +617,7 @@
     "Buy link": "Acheter un lien",
     "Buy links are allowed from the following domains": "Les liens d'achat sont autorisés à partir des domaines suivants",
     "Media license": "Licence média",
-    "Media creator": "Créateur de médias"
+    "Media creator": "Créateur de médias",
+    "Import Blocks": "Importer des instances bloquées",
+    "Export Blocks": "Exporter les instances bloquées"
 }
diff --git a/translations/ga.json b/translations/ga.json
index 0e7e7d460..c5383252f 100644
--- a/translations/ga.json
+++ b/translations/ga.json
@@ -617,5 +617,7 @@
     "Buy link": "Ceannaigh nasc",
     "Buy links are allowed from the following domains": "Ceadaítear naisc cheannaigh ó na fearainn seo a leanas",
     "Media license": "Ceadúnas meáin",
-    "Media creator": "Cruthaitheoir meáin"
+    "Media creator": "Cruthaitheoir meáin",
+    "Import Blocks": "Iompórtáil Cásanna Blocáilte",
+    "Export Blocks": "Easpórtáil Cásanna Blocáilte"
 }
diff --git a/translations/hi.json b/translations/hi.json
index 5b2992dcc..3c8fc236a 100644
--- a/translations/hi.json
+++ b/translations/hi.json
@@ -617,5 +617,7 @@
     "Buy link": "लिंक खरीदें",
     "Buy links are allowed from the following domains": "निम्नलिखित डोमेन से खरीदें लिंक की अनुमति है",
     "Media license": "मीडिया लाइसेंस",
-    "Media creator": "मीडिया निर्माता"
+    "Media creator": "मीडिया निर्माता",
+    "Import Blocks": "अवरोधित उदाहरण आयात करें",
+    "Export Blocks": "निर्यात अवरुद्ध उदाहरण"
 }
diff --git a/translations/it.json b/translations/it.json
index ab986d350..a0ddb6430 100644
--- a/translations/it.json
+++ b/translations/it.json
@@ -617,5 +617,7 @@
     "Buy link": "Link per l'acquisto",
     "Buy links are allowed from the following domains": "I link di acquisto sono consentiti dai seguenti domini",
     "Media license": "Licenza multimediale",
-    "Media creator": "Creatore multimediale"
+    "Media creator": "Creatore multimediale",
+    "Import Blocks": "Importa istanze bloccate",
+    "Export Blocks": "Esporta istanze bloccate"
 }
diff --git a/translations/ja.json b/translations/ja.json
index 0c2cb9a78..3d530171e 100644
--- a/translations/ja.json
+++ b/translations/ja.json
@@ -617,5 +617,7 @@
     "Buy link": "購入リンク",
     "Buy links are allowed from the following domains": "次のドメインからの購入リンクが許可されています",
     "Media license": "メディアライセンス",
-    "Media creator": "メディアクリエーター"
+    "Media creator": "メディアクリエーター",
+    "Import Blocks": "ブロックされたインスタンスのインポート",
+    "Export Blocks": "ブロックされたインスタンスのエクスポート"
 }
diff --git a/translations/ko.json b/translations/ko.json
index dc6d6f577..416e33d76 100644
--- a/translations/ko.json
+++ b/translations/ko.json
@@ -617,5 +617,7 @@
     "Buy link": "구매 링크",
     "Buy links are allowed from the following domains": "다음 도메인에서 구매 링크가 허용됩니다.",
     "Media license": "미디어 라이센스",
-    "Media creator": "미디어 크리에이터"
+    "Media creator": "미디어 크리에이터",
+    "Import Blocks": "차단된 인스턴스 가져오기",
+    "Export Blocks": "차단된 인스턴스 내보내기"
 }
diff --git a/translations/ku.json b/translations/ku.json
index 385541118..e739010a4 100644
--- a/translations/ku.json
+++ b/translations/ku.json
@@ -617,5 +617,7 @@
     "Buy link": "Girêdanê bikirin",
     "Buy links are allowed from the following domains": "Zencîreyên kirînê ji domên jêrîn têne destûr kirin",
     "Media license": "Lîsansa medyayê",
-    "Media creator": "Afirînerê medyayê"
+    "Media creator": "Afirînerê medyayê",
+    "Import Blocks": "Mînakên Astengkirî Import",
+    "Export Blocks": "Mînakên Astengkirî Export"
 }
diff --git a/translations/nl.json b/translations/nl.json
index 7c53151d7..98ac9c26f 100644
--- a/translations/nl.json
+++ b/translations/nl.json
@@ -617,5 +617,7 @@
     "Buy link": "koop link",
     "Buy links are allowed from the following domains": "Kooplinks zijn toegestaan vanaf de volgende domeinen",
     "Media license": "Media licentie",
-    "Media creator": "Media-maker"
+    "Media creator": "Media-maker",
+    "Import Blocks": "Importeer geblokkeerde instanties",
+    "Export Blocks": "Exporteer geblokkeerde instanties"
 }
diff --git a/translations/oc.json b/translations/oc.json
index 45e2bb7de..922848b71 100644
--- a/translations/oc.json
+++ b/translations/oc.json
@@ -613,5 +613,7 @@
     "Buy link": "Buy link",
     "Buy links are allowed from the following domains": "Buy links are allowed from the following domains",
     "Media license": "Media license",
-    "Media creator": "Media creator"
+    "Media creator": "Media creator",
+    "Import Blocks": "Import Blocks",
+    "Export Blocks": "Export Blocks"
 }
diff --git a/translations/pl.json b/translations/pl.json
index 3858f49fa..866dc0f2f 100644
--- a/translations/pl.json
+++ b/translations/pl.json
@@ -617,5 +617,7 @@
     "Buy link": "Kup Link",
     "Buy links are allowed from the following domains": "Kupuj linki są dozwolone z następujących domen",
     "Media license": "Licencja medialna",
-    "Media creator": "Kreator mediów"
+    "Media creator": "Kreator mediów",
+    "Import Blocks": "Importuj zablokowane instancje",
+    "Export Blocks": "Eksportuj zablokowane instancje"
 }
diff --git a/translations/pt.json b/translations/pt.json
index 6c11a0d59..1b6c9c7dd 100644
--- a/translations/pt.json
+++ b/translations/pt.json
@@ -617,5 +617,7 @@
     "Buy link": "Link de compra",
     "Buy links are allowed from the following domains": "Links de compra são permitidos nos seguintes domínios",
     "Media license": "Licença de mídia",
-    "Media creator": "Criador de mídia"
+    "Media creator": "Criador de mídia",
+    "Import Blocks": "Importar instâncias bloqueadas",
+    "Export Blocks": "Exportar instâncias bloqueadas"
 }
diff --git a/translations/ru.json b/translations/ru.json
index f859e1d58..4679f935c 100644
--- a/translations/ru.json
+++ b/translations/ru.json
@@ -617,5 +617,7 @@
     "Buy link": "Купить ссылку",
     "Buy links are allowed from the following domains": "Ссылки на покупку разрешены со следующих доменов",
     "Media license": "Медиа лицензия",
-    "Media creator": "Создатель медиа"
+    "Media creator": "Создатель медиа",
+    "Import Blocks": "Импорт заблокированных экземпляров",
+    "Export Blocks": "Экспорт заблокированных экземпляров"
 }
diff --git a/translations/sw.json b/translations/sw.json
index f4f04873f..9a1bad0f3 100644
--- a/translations/sw.json
+++ b/translations/sw.json
@@ -617,5 +617,7 @@
     "Buy link": "Nunua kiungo",
     "Buy links are allowed from the following domains": "Viungo vya kununua vinaruhusiwa kutoka kwa vikoa vifuatavyo",
     "Media license": "Leseni ya media",
-    "Media creator": "Muundaji wa media"
+    "Media creator": "Muundaji wa media",
+    "Import Blocks": "Ingiza Matukio Yaliyozuiwa",
+    "Export Blocks": "Hamisha Matukio Yaliyozuiwa"
 }
diff --git a/translations/tr.json b/translations/tr.json
index b6a480bde..a6e84aab7 100644
--- a/translations/tr.json
+++ b/translations/tr.json
@@ -617,5 +617,7 @@
     "Buy link": "Bağlantı satın al",
     "Buy links are allowed from the following domains": "Aşağıdaki alanlardan satın alma bağlantılarına izin verilir",
     "Media license": "Medya lisansı",
-    "Media creator": "Medya yaratıcısı"
+    "Media creator": "Medya yaratıcısı",
+    "Import Blocks": "Engellenen Örnekleri İçe Aktar",
+    "Export Blocks": "Engellenen Örnekleri Dışa Aktar"
 }
diff --git a/translations/uk.json b/translations/uk.json
index bbecd07ac..42f0d4ae6 100644
--- a/translations/uk.json
+++ b/translations/uk.json
@@ -617,5 +617,7 @@
     "Buy link": "Купити посилання",
     "Buy links are allowed from the following domains": "Посилання на купівлю дозволено з таких доменів",
     "Media license": "Медіа ліцензія",
-    "Media creator": "Творець медіа"
+    "Media creator": "Творець медіа",
+    "Import Blocks": "Імпортувати заблоковані екземпляри",
+    "Export Blocks": "Експортувати заблоковані екземпляри"
 }
diff --git a/translations/yi.json b/translations/yi.json
index acf8981ba..b1214f9b1 100644
--- a/translations/yi.json
+++ b/translations/yi.json
@@ -617,5 +617,7 @@
     "Buy link": "קויפן לינק",
     "Buy links are allowed from the following domains": "קויפן פֿאַרבינדונגען זענען ערלויבט פֿון די פאלגענדע דאָומיינז",
     "Media license": "מעדיע דערלויבעניש",
-    "Media creator": "מעדיע באשעפער"
+    "Media creator": "מעדיע באשעפער",
+    "Import Blocks": "ימפּאָרט בלאַקט ינסטאַנסיז",
+    "Export Blocks": "עקספּאָרט בלאַקט ינסטאַנסיז"
 }
diff --git a/translations/zh.json b/translations/zh.json
index 9a88921a4..df2228367 100644
--- a/translations/zh.json
+++ b/translations/zh.json
@@ -617,5 +617,7 @@
     "Buy link": "购买链接",
     "Buy links are allowed from the following domains": "允许来自以下域的购买链接",
     "Media license": "媒体许可证",
-    "Media creator": "媒体创作者"
+    "Media creator": "媒体创作者",
+    "Import Blocks": "导入被阻止的实例",
+    "Export Blocks": "导出被阻止的实例"
 }
diff --git a/webapp_profile.py b/webapp_profile.py
index aee6c8bb3..9d85fdc41 100644
--- a/webapp_profile.py
+++ b/webapp_profile.py
@@ -92,6 +92,7 @@ from roles import is_devops
 from session import site_is_verified
 
 THEME_FORMATS = '.zip, .gz'
+BLOCKFILE_FORMATS = '.csv'
 
 
 def _valid_profile_preview_post(post_json_object: {},
@@ -2043,6 +2044,20 @@ def _html_edit_profile_filtering(base_dir: str, nickname: str, domain: str,
         edit_text_area(translate['Blocked accounts'], None, 'blocked',
                        blocked_str, 200, '', False)
 
+    # import and export blocks
+    edit_profile_form += \
+        '      <label class="labels">' + \
+        translate['Import Blocks'] + '</label>\n'
+    edit_profile_form += '      <input type="file" id="import_blocks" '
+    edit_profile_form += 'name="submitImportBlocks" '
+    edit_profile_form += 'accept="' + BLOCKFILE_FORMATS + '">\n'
+    edit_profile_form += \
+        '      <label class="labels">' + \
+        translate['Export Blocks'] + '</label><br>\n'
+    edit_profile_form += \
+        '      <button type="submit" class="button" ' + \
+        'name="submitExportBlocks">➤</button><br>\n'
+
     idx = 'Direct messages are always allowed from these instances.'
     edit_profile_form += \
         edit_text_area(translate['Direct Message permitted instances'], None,