Null safety migration status

Null safety migration

This page contains stats for the migration of packages on pub.dev to Dart's sound null safety feature.

The data below is based on the following criteria:

• Package supports null safety: The Dart SDK lower constraint is >= 2.12.0-0
• Package is unblocked for starting migrating to null safety: All direct dep of the package support null safety
• Blocking score: The number of packages (incl. transitive deps) only blocked from null-safety migration by this package. If a package is blocked by N dependencies, then it only contributes with a blocking score of 1/N.

Note: Pub.dev also has a list of packages with null safety. This may show a slightly lower count than the "raw" counts below, as some categories of packages (e.g. those marked discontinued) are not shown in the pub.dev search UI.

Summary:

Package counts (each package counts only once)

packages with null safety:                   4025

packages without null safety total:          14178
packages without null safety blocked:        2604
packages without null safety unblocked:      11574

packages in total (w. Dart 2.12 support):    18203

Top blocking packages

Top 50 by blocking score (unblocked for migr.):

  shared_aws_api                            217.5   Yes
  code_builder                               62.2   Yes
  build_config                               55.4   Yes
  flutter_webview_plugin                     38.1   Yes
  build_runner                               33.7   No
  angel_framework                            30.5   No
  angular                                    27.7   No
  mustache                                   18.7   Yes
  jaguar                                     18.5   No
  foundation_fluttify                        16.8   Yes
  resource                                   16.3   Yes
  mango_ui                                   15.0   Yes
  dart2_constant                             15.0   Yes
  flutter_map                                14.6   No
  charts_flutter                             14.1   No
  pull_to_refresh                            13.5   Yes
  ocg_app                                    12.9   Yes
  isolate                                    12.9   Yes
  jaguar_serializer                          12.6   Yes
  latlong                                    11.5   No
  flushbar                                   10.8   Yes
  angel_container                            10.7   Yes
  awareframework_core                        10.5   No
  uni_links                                   9.9   Yes
  intl_translation                            9.9   Yes
  validate                                    9.9   Yes
  console_log_handler                         9.6   Yes
  prompts                                     9.6   Yes
  nui_core                                    9.5   No
  transformer_page_view                       9.5   Yes
  bip32                                       9.3   Yes
  masamune_flutter                            8.8   No
  json_rpc_2                                  8.6   Yes
  flutter_facebook_login                      8.3   Yes
  screen                                      8.3   Yes
  toast                                       8.2   Yes
  pip_services3_commons                       8.0   Yes
  database                                    8.0   Yes
  amplify_core                                7.7   Yes
  quill_delta                                 7.6   Yes
  pip_services3_components                    7.5   No
  mustache4dart                               7.3   Yes
  progress_dialog                             7.3   Yes
  plugin_scaffold                             7.0   Yes
  web3dart                                    6.8   No
  streams_channel                             6.7   Yes
  node_interop                                6.4   Yes
  time_machine                                6.3   Yes
  class_extensions_annotations                6.3   Yes
  data_connection_checker                     6.2   Yes

packages published last 7 days where latest version is null-safe (280): validators 2021-04-08 3.0.0 eventify 2021-04-11 1.0.0 flutter_google_places 2021-04-06 0.3.0 image_gallery_saver 2021-04-09 1.6.9 intro_slider 2021-04-12 2.4.0 notification_permissions 2021-04-07 0.5.0 flutter_native_image 2021-04-09 0.0.6 flutter_share 2021-04-08 2.0.0 flutter_sticky_header 2021-04-10 0.6.0 value_layout_builder 2021-04-10 0.3.1 date_utils 2021-04-06 0.2.0 progress_indicators 2021-04-07 1.0.0 change_app_package_name 2021-04-08 1.0.0 image_crop 2021-04-05 0.4.0 intro_views_flutter 2021-04-07 3.0.0 flutter_sms 2021-04-05 2.3.1 bloc_pattern 2021-04-07 3.0.0 flutter_web_auth 2021-04-06 0.3.0 cryptoutils 2021-04-05 0.5.0 dart_code_metrics 2021-04-10 3.0.0 im_stepper 2021-04-05 0.1.3 webview_flutter_plus 2021-04-10 0.2.0 form_validator 2021-04-10 1.0.0-nullsafety.1 tab_indicator_styler 2021-04-05 2.0.0-null-safety video_trimmer 2021-04-09 0.4.0 artemis 2021-04-09 7.0.0-beta.3 flutter_flavor 2021-04-10 2.0.0 socket_io 2021-04-08 1.0.0 progress_state_button 2021-04-11 1.0.3 function_types 2021-04-08 0.1.0 speech_bubble 2021-04-10 0.0.9 weather 2021-04-09 2.0.0 touchable 2021-04-08 1.0.0-prerelease group_button 2021-04-07 2.1.0 flutter_keychain 2021-04-12 2.0.0 flutter_tex 2021-04-11 4.0.0 xmpp_stone 2021-04-08 0.4.0-dev.1 worker_manager 2021-04-10 4.0.0 semaphore 2021-04-08 0.2.0 flutter_luban 2021-04-11 0.1.12 is_lock_screen 2021-04-07 2.0.0 flutter_bugly 2021-04-11 0.3.2+1 pluto_grid 2021-04-09 2.0.0-nullsafety.0 gql_dio_link 2021-04-07 0.1.0-nullsafety.1 sqflite_migration_service 2021-04-09 2.0.0-nullsafety.0 fluri 2021-04-08 2.0.0 wp_json_api 2021-04-10 3.0.0 overflow_view 2021-04-10 0.3.1 split_view 2021-04-10 2.0.1 woosignal 2021-04-11 2.0.2 simple_timer 2021-04-11 2.0.0 open_settings 2021-04-07 2.0.1 firedart 2021-04-07 0.9.0+1 flutterlifecyclehooks 2021-04-08 2.0.0-nullsafety.0 secp256k1 2021-04-07 0.3.0 flrx_validator 2021-04-07 0.6.0-nullsafety listview_utils 2021-04-09 1.0.0-nullsafety measured_size 2021-04-05 1.0.0 response 2021-04-05 1.0.0 tencent_im_sdk_plugin 2021-04-08 2.0.3 matomo 2021-04-08 0.1.0 expression_language 2021-04-05 1.0.0 flutter_neat_and_clean_calendar 2021-04-12 0.2.0+8 mp3_info 2021-04-06 0.2.0 ssl_pinning_plugin 2021-04-07 2.0.0 flutter_lwa 2021-04-12 1.0.1 surf_logger 2021-04-06 1.0.0 i69n 2021-04-10 2.0.0-nullsafety.1 ocarina 2021-04-07 0.1.0 bonfire 2021-04-09 1.0.0-rc0 swipebuttonflutter 2021-04-09 1.0.0 sweetsheet 2021-04-08 0.3.1 gql_websocket_link 2021-04-07 0.3.0-nullsafety.1 zendesk_plugin 2021-04-12 2.0.0 flutter_dynamic_forms 2021-04-05 1.0.0 fresh_graphql 2021-04-10 0.5.1 dynamic_forms 2021-04-05 1.0.0 cotter 2021-04-06 0.2.0-nullsafety.0 surf_injector 2021-04-09 1.0.0 flutter_dynamic_forms_components 2021-04-05 1.0.0 cupertino_rounded_corners 2021-04-07 2.0.0 invoiceninja 2021-04-07 0.0.9 fl_paging 2021-04-12 2.0.0 volume_controller 2021-04-11 2.0.0 icon 2021-04-06 2.0.0+4 flutter_tencentplayer 2021-04-06 0.14.0 osm_nominatim 2021-04-06 2.0.0 network_logger 2021-04-09 1.0.0 flappy_translator 2021-04-10 2.0.0-nullsafety.1 messagepack 2021-04-11 0.2.1 cider 2021-04-12 0.1.0-dev.0 lifecycle 2021-04-12 0.2.0 yaml_serializer 2021-04-06 0.0.11 flutter_interactive_keyboard 2021-04-12 0.2.0 what3words 2021-04-12 3.1.0-nullsafety.3 flutter_plot 2021-04-08 0.1.0 flutter_initicon 2021-04-10 2.0.0 cafebazaar_flutter 2021-04-06 1.0.1 tencent_im_plugin 2021-04-07 2.0.2 sliver_grouped_list 2021-04-10 1.1.2-nullsafety.0 flutter_screenshot_switcher 2021-04-12 2.0.0 loggy 2021-04-06 2.0.0 aws_lambda_dart_runtime 2021-04-11 1.1.0 dart_countries_states 2021-04-06 0.1.1 realtime_pagination 2021-04-10 0.0.8 nylo_framework 2021-04-10 0.8.2 simple_currency_format 2021-04-09 1.0.5 json_async 2021-04-06 0.2.0 tinkoff_acquiring 2021-04-06 2.0.0 material_color_scheme 2021-04-12 0.0.3 flutter_storyboard 2021-04-06 1.0.1-dev papercups_flutter 2021-04-07 2.1.0 flutter_loggy_dio 2021-04-12 2.0.0+2 session 2021-04-11 1.0.3 rikulo_security 2021-04-06 2.0.0 package_signature 2021-04-12 0.1.1 stagehand 2021-04-06 4.0.0-beta.1 qiniu_flutter_sdk 2021-04-07 0.3.0 clipboard_listener 2021-04-07 2.0.0 qiniu_sdk_base 2021-04-07 0.3.0 ap_common 2021-04-11 0.16.0-nullsafety.1 stemmer 2021-04-11 2.0.0 api_manager 2021-04-07 0.1.27 geira_icons 2021-04-07 2.0.0 bloc_generic_streams 2021-04-08 2.0.0 enough_mail_html 2021-04-07 1.0.0 stripedart 2021-04-11 1.1.0 enough_mail_flutter 2021-04-07 1.0.0 flutter_loggy 2021-04-06 2.0.0 hua_wei_push_plugin 2021-04-11 2.0.1 tencent_rtc_plugin 2021-04-07 2.0.0 snowplow_flutter_tracker 2021-04-06 0.11.0 dynamic_forms_generator 2021-04-05 1.0.0 cool_linter 2021-04-12 1.0.1 re_reselect 2021-04-07 1.0.0 lazy_data_table_plus 2021-04-07 1.0.0 flutter_requery 2021-04-07 0.0.5 ap_common_plugin 2021-04-09 0.3.0 camerax 2021-04-06 0.1.0 local_image_pager 2021-04-06 0.6.0 flutter_biometrics 2021-04-07 0.3.0 ud_widgets 2021-04-11 0.2.6 smoothie 2021-04-09 0.3.0+1 h264 2021-04-06 0.3.0 localregex 2021-04-11 2.0.0 nowplaying 2021-04-10 2.0.0-nullsafety.0 num_to_txt 2021-04-06 0.0.5 responsive_sizer 2021-04-12 1.1.0+1 single_item_storage 2021-04-08 1.0.0 persona_flutter 2021-04-07 2.0.0 app_popup_menu 2021-04-10 1.0.0 semaphore_nullsafety 2021-04-06 0.2.0 routing_path 2021-04-05 0.1.0-nullsafety.0 flutter_basic_chat_bubble 2021-04-12 0.2.0+2 tinkoff_invest_api 2021-04-06 0.1.0 netmera_flutter_sdk 2021-04-07 2.0.0-nullsafety.1 dartspatcher 2021-04-07 0.7.3 fitbitter 2021-04-06 1.0.0-dev.5 apn_router 2021-04-10 3.0.0 state_set 2021-04-11 3.0.0 xiao_mi_push_plugin 2021-04-07 2.0.0 helper_set 2021-04-08 0.0.6 conduit 2021-04-12 2.0.0-a1 view_model_provider 2021-04-12 0.0.4 sci_mobile_components 2021-04-07 2.0.2 trober_sdk 2021-04-12 0.0.46 alan 2021-04-07 0.40.1+1 palace_body_parser 2021-04-07 1.0.0+1 build_context_holder 2021-04-09 1.0.0 dart_flubber 2021-04-06 0.2.0 smarter_text_field 2021-04-07 0.0.4 edart 2021-04-11 0.1.9 root_detector 2021-04-12 0.0.3 mockitory 2021-04-07 2.0.1+1 obsobject 2021-04-07 1.1.0 flutter_auto_form 2021-04-07 0.0.6 fireproof_annotation 2021-04-08 0.0.1+1 rpgnamegenerator 2021-04-05 1.0.2 nikutils 2021-04-12 1.0.0 slikker_kit 2021-04-11 1.0.5 fastyle_pricing 2021-04-09 0.2.0-beta.3 simple_dart 2021-04-06 1.0.3 animated_button_bar 2021-04-06 0.0.2+1 responsive_property 2021-04-05 0.0.1 flutter_brand_palettes 2021-04-10 0.1.1 flutter_fireproof 2021-04-07 0.0.1+1 aws_auth 2021-04-05 2.0.0 objd_crafting 2021-04-11 0.2.0 pixel_perfect 2021-04-10 1.0.7 r_router 2021-04-09 0.3.1+1 phone_numbers_parser 2021-04-08 0.0.4 release_notes_dialog 2021-04-11 1.0.3 declarative_refresh_indicator 2021-04-06 0.1.0 flutter_mediator_persistence 2021-04-12 1.0.1 round_spot 2021-04-11 0.2.0 basic_ui 2021-04-11 0.1.0 screen_recorder 2021-04-05 0.0.1 dashed_line 2021-04-06 0.1.0+1 peg2 2021-04-11 0.2.3 keyframes_tween 2021-04-08 0.1.1 keyboard_info 2021-04-07 0.1.0+4 dj 2021-04-11 0.0.8 mobpay 2021-04-10 0.0.2 mit_test 2021-04-06 2.12.0 fireproof 2021-04-07 0.0.1+1 sheet 2021-04-07 0.0.1 flutter_not_paid 2021-04-12 1.0.0 flutter_mockitory 2021-04-07 2.0.1+1 local_pubsub 2021-04-09 1.0.3 pigeonholelive_sdk 2021-04-08 1.0.0 flutter_oneshot 2021-04-08 0.0.4+1 flutter_device_version_os 2021-04-08 0.0.2 flutter_i2c 2021-04-11 0.1.0 native_resource 2021-04-12 0.1.0 flutter_google_i18n 2021-04-09 0.1.0 scoper 2021-04-05 0.0.1+0 fastyle_exchanges 2021-04-11 0.1.0-beta.0 drengr 2021-04-12 0.0.2 jsend 2021-04-09 1.0.2-pre-release dj_io 2021-04-11 0.0.3 fade_content 2021-04-08 1.0.0 gbk_codec_nohtml 2021-04-11 1.0.0 neveruseless 2021-04-11 0.0.3 difficulty_toggle 2021-04-05 0.0.3 simple_tags 2021-04-12 0.0.4 simple_telephony 2021-04-08 0.0.1 pub_api 2021-04-05 0.0.5 active_grid_core 2021-04-12 0.1.0 flutter_advanced_progress 2021-04-10 1.0.0+1 gps_history 2021-04-10 0.0.2 json_resolver 2021-04-06 2.0.0 json_sorter 2021-04-11 1.0.0 snake 2021-04-07 0.1.0 event_bus_auto 2021-04-11 0.1.0 datatoggle 2021-04-11 1.0.0-dev.1 sodium 2021-04-07 0.0.1 number_interpolation 2021-04-08 1.0.1 dart_tolk 2021-04-12 1.2.0 dart_mappable 2021-04-11 0.1.0 flumen_passwd 2021-04-11 1.0.0 custom_ping 2021-04-11 0.0.1+2 event_bus_auto_codegen 2021-04-11 0.1.0 crime 2021-04-07 0.1.2 observable_builder 2021-04-09 0.0.2 supertokens 2021-04-11 0.0.1 floca 2021-04-10 0.1.3-alpha comparator_sorted_map 2021-04-12 1.0.3 coffee 2021-04-11 0.0.3 catalyst_builder 2021-04-11 0.0.1 yoda 2021-04-09 0.0.1-dev.2 tape_measure 2021-04-09 1.0.1 tencent_im_sdk_plugin_222 2021-04-07 3.1.0+3 candlesticks 2021-04-10 0.1.1 flutter_clickpay_bridge 2021-04-07 2.0.4-beta cached_network_marker 2021-04-10 0.1.0 textfield_history 2021-04-08 0.0.2 odoochat 2021-04-08 1.0.0 google_maps_widget 2021-04-12 0.0.3 big_numbers 2021-04-11 2.2.0 flog 2021-04-07 0.1.1 float_bubble 2021-04-07 0.0.2 umeng_analytics_with_push_platform_interface 2021-04-09 0.0.1 umeng_analytics_with_push 2021-04-09 0.1.1 flutter_client_sse 2021-04-06 0.0.2 bake 2021-04-10 2.0.0 flutter_web_frame 2021-04-08 0.0.2 es_compression_grpc 2021-04-10 0.9.1 vmobject 2021-04-09 1.3.0 arb_generator 2021-04-10 0.0.1 apptimize_flutter 2021-04-06 2.0.0 flutter_smartlink 2021-04-07 0.0.5 flutter_easylink 2021-04-07 0.0.5 payu_payment 2021-04-09 0.0.2 on_toast_widget 2021-04-09 1.0.0 permission_asker 2021-04-08 1.0.0+1 permission_handler_tizen 2021-04-07 1.0.0 active_grid_form 2021-04-12 0.1.0 active_grid_grid_builder 2021-04-12 0.1.0 catalyst 2021-04-10 3.0.0 date_checker 2021-04-12 1.0.0+1