dataclass-wizard

A wizard-like JSON serialization library for Python dataclasses

dataclass-wizard has been downloaded 65,322,902 times in total on PyPI, including 5,480,549 in the last 30 days. The latest version is 0.39.1, released Jan 6, 2026.

Version0.39.1
Downloads
65.32M
LicenseApache Software License 2.0 Copyright (c) 2021, Ritvik Nag Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
AuthorRitvik Nag
UpdatedJan 6, 2026

Downloads

Weekly, last 90d.
Includes CI traffic.

VersionsTotal0.*
Range
View
Granularity
Group by
CI traffic
Stack: OffCI: Included2 / 85 series
Selected total30.41M
65.3MAll-time
5.5MLast 30 days
199.0kLast 24 h
2.44/sPer second

Version distribution

Share of downloads by released version. Computed over the last quarter.

  • 01

    0.39.1

    11.3M downloads
    74.3%
  • 02

    0.22.3

    1.3M downloads
    8.4%
  • 03

    0.35.1

    598.6k downloads
    3.9%
  • 04

    0.22.2

    528.2k downloads
    3.5%
  • 05

    0.30.1

    491.7k downloads
    3.2%
  • 06

    0.36.2

    323.6k downloads
    2.1%
  • 07

    0.35.0

    176.1k downloads
    1.2%
  • 08

    0.35.4

    133.6k downloads
    0.9%
  • 09

    Other

    372.8k downloads
    2.5%

Guess the next day

Thirteen recent days of dataclass-wizard downloads. Drag the green handle on the right to guess where day fourteen lands.

TRUTH199.0k401.0kFRISATSUNMONTUEWEDTHUFRISATSUNMONTUEWED
    dataclass-wizard · 65.3M downloads on PyPI