🏆 A ranked list of awesome Python open-source libraries & tools. Updated weekly.
This curated list contains 390 awesome open-source projects with a total of 2M stars grouped into 28 categories. All projects are ranked by a project-quality score, which is calculated based on various metrics automatically collected from GitHub and different package managers. If you like to add or update projects, feel free to open an issue, submit a pull request, or directly edit the projects.yaml. Contributions are very welcome!
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- Data Serialization 16 projects
- Data Containers & Dataframes 30 projects
- Data Structures 15 projects
- Data Validation 15 projects
- Algorithms & Design Patterns 4 projects
- Date & Time Utilities 9 projects
- File & Path Utilities 10 projects
- Compatiblity 7 projects
- Cryptography 7 projects
- Infrastructure & DevOps 20 projects
- Process Utilities 4 projects
- Asynchronous Programming 7 projects
- Configuration 9 projects
- CLI Development 20 projects
- Development Tools 1 projects
- Data Caching 6 projects
- GUI Development 10 projects
- Computer & Machine Vision 2 projects
- Machine Learning & Data Engineering 1 projects
- Text Data 12 projects
- Web Development 1 projects
- Database Clients 64 projects
- Data Loading & Extraction 30 projects
- Data Pipelines & Streaming 44 projects
- File Formats 3 projects
- Code Inspection 4 projects
- General Utilities 15 projects
- Python Implementations 6 projects
- Others 21 projects
- 🥇🥈🥉 Combined project-quality score
- ⭐️ Star count from GitHub
- 🐣 New project (less than 6 months old)
- 💤 Inactive project (6 months no activity)
- 💀 Dead project (12 months no activity)
- 📈📉 Project is trending up or down
- ➕ Project was recently added
- ❗️ Warning (e.g. missing/risky license)
- 👨💻 Contributors count from GitHub
- 🔀 Fork count from GitHub
- 📋 Issue count from GitHub
- ⏱️ Last update timestamp on package manager
- 📥 Download count from package manager
- 📦 Number of dependent projects
Pandas related project
protobuf (🥇53 · ⭐ 70K) - Protocol Buffers - Googles data interchange format. BSD-3
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GitHub (👨💻 1.4K · 🔀 16K · 📥 76M · 📦 960K · 📋 6.8K - 3% open · ⏱️ 11.12.2025):
git clone https://github.com/protocolbuffers/protobuf -
PyPi (📥 460M / month · 📦 10K · ⏱️ 06.12.2025):
pip install protobuf -
Conda (📥 26M · ⏱️ 14.10.2025):
conda install -c conda-forge protobuf -
npm (📥 12M / month · 📦 3.7K · ⏱️ 19.11.2025):
npm install google-protobuf
flatbuffers (🥇45 · ⭐ 25K) - FlatBuffers: Memory Efficient Serialization Library. Apache-2
-
GitHub (👨💻 740 · 🔀 3.4K · 📥 1.4M · 📦 190K · 📋 2.6K - 4% open · ⏱️ 10.12.2025):
git clone https://github.com/google/flatbuffers -
PyPi (📥 41M / month · 📦 670 · ⏱️ 24.09.2025):
pip install flatbuffers -
Conda (📥 1.8M · ⏱️ 24.10.2025):
conda install -c conda-forge flatbuffers -
npm (📥 7.4M / month · 📦 290 · ⏱️ 24.09.2025):
npm install flatbuffers
marshmallow (🥈41 · ⭐ 7.2K) - A lightweight library for converting complex objects to and from.. MIT
simplejson (🥈37 · ⭐ 1.7K) - simplejson is a simple, fast, extensible JSON encoder/decoder for.. MIT
orjson (🥈36 · ⭐ 7.7K) - Fast, correct Python JSON library supporting dataclasses, datetimes,.. Apache-2
cloudpickle (🥈34 · ⭐ 1.9K) - Extended pickling support for Python objects. BSD-3
jsonpickle (🥈34 · ⭐ 1.3K) - Python library for serializing any arbitrary object graph into.. BSD-3
python-rapidjson (🥉29 · ⭐ 530) - Python wrapper around rapidjson. MIT
Show 5 hidden projects...
- ultrajson (🥉33 · ⭐ 4.5K) - Ultra fast JSON decoder and encoder written in C with Python..
❗Unlicensed - pyasn1 (🥉33 · ⭐ 250 · 💀) - Generic ASN.1 library for Python.
BSD-2 - msgpack (🥉32 · ⭐ 2K) - MessagePack serializer implementation for Python..
❗Unlicensed - hickle (🥉26 · ⭐ 500 · 💀) - a HDF5-based python pickle replacement.
MIT - pysimdjson (🥉24 · ⭐ 750) - Python bindings for the simdjson project.
❗Unlicensed
General-purpose data containers as well as utilities & extensions for pandas.
h5py (🥈40 · ⭐ 2.2K · 📉) - HDF5 for Python -- The h5py package is a Pythonic interface to the HDF5.. BSD-3
zarr (🥈37 · ⭐ 1.9K) - An implementation of chunked, compressed, N-dimensional arrays for Python. MIT
Bottleneck (🥈35 · ⭐ 1.2K) - Fast NumPy array functions written in C. BSD-2
datasketch (🥈33 · ⭐ 2.8K) - MinHash, LSH, LSH Forest, Weighted MinHash, HyperLogLog,.. MIT
Vaex (🥉31 · ⭐ 8.5K) - Out-of-Core hybrid Apache Arrow/NumPy DataFrame for Python, ML, visualization.. MIT
datatable (🥉29 · ⭐ 1.9K · 💤) - A Python package for manipulating 2-dimensional tabular data.. MPL-2.0
StaticFrame (🥉28 · ⭐ 480) - Immutable and statically-typeable DataFrames with runtime type and.. MIT
Pandas Summary (🥉24 · ⭐ 520) - Engine for ML/Data tracking, visualization,.. Apache-2
Show 14 hidden projects...
- numpy (🥇51 · ⭐ 31K) - The fundamental package for scientific computing with Python.
❗Unlicensed - polars (🥇44 · ⭐ 37K) - Extremely f
E630
ast Query Engine for DataFrames, written in Rust.
❗Unlicensed - Blaze (🥉32 · ⭐ 3.2K · 💀) - NumPy and Pandas interface to Big Data.
BSD-3 - TinyDB (🥉31 · ⭐ 7.4K · 💀) - TinyDB is a lightweight document oriented database optimized for your..
MIT - Koalas (🥉31 · ⭐ 3.4K · 💀) - Koalas: pandas API on Apache Spark.
Apache-2spark - Arctic (🥉28 · ⭐ 3.1K · 💀) - Arctic is a high performance datastore for numeric data.
❗️LGPL-2.1 - sklearn-pandas (🥉28 · ⭐ 2.8K · 💀) - Pandas integration with sklearn.
❗️Zlibsklearn - pandasql (🥉28 · ⭐ 1.4K · 💀) - sqldf for pandas.
MIT - Pandaral·lel (🥉27 · ⭐ 3.8K · 💀) - A simple and efficient tool to parallelize Pandas..
BSD-3jupyter - swifter (🥉27 · ⭐ 2.6K · 💀) - A package which efficiently applies any function to a pandas..
MIT - bcolz (🥉27 · ⭐ 960 · 💀) - A columnar data container that can be compressed.
BSD-3 - fletcher (🥉20 · ⭐ 230 · 💀) - Pandas ExtensionDType/Array backed by Apache Arrow.
MIT - Bounter (🥉18 · ⭐ 930 · 💀) - Efficient Counter that uses a limited (bounded) amount of memory..
MIT - PandaPy (🥉12 · ⭐ 550 · 💀) - PandaPy has the speed of NumPy and the usability of Pandas 10x to..
MIT
pyrsistent (🥇37 · ⭐ 2.1K) - Persistent/Immutable/Functional data structures for Python. MIT
python-benedict (🥉29 · ⭐ 1.6K) - dict subclass with keylist/keypath support, built-in I/O.. MIT
python-box (🥉26 · ⭐ 2.8K · 💤) - Python dictionaries with advanced dot notation access. MIT
Show 7 hidden projects...
- python-sortedcontainers (🥈32 · ⭐ 3.9K · 💀) - Python Sorted Container Types: Sorted List, Sorted..
Apache-2 - addict (🥈31 · ⭐ 2.5K · 💀) - The Python Dict thats better than heroin.
MIT - sqlitedict (🥉29 · ⭐ 1.2K · 💀) - Persistent dict, backed by sqlite3 and pickle, multithread-..
Apache-2 - ordered-set (🥉28 · ⭐ 220 · 💀) - A mutable set that remembers the order of its entries. One of..
MIT - munch (🥉26 · ⭐ 780 · 💀) - A Munch is a Python dictionary that provides attribute-style access (a..
MIT - immutables (🥉25 · ⭐ 1.2K · 💀) - A high-performance immutable mapping type for Python.
Apache-2 - cleverdict (🥉16 · ⭐ 100 · 💀) - A JSON-friendly data structure which allows both object attributes..
MIT
jsonschema (🥇42 · ⭐ 4.9K) - An implementation of the JSON Schema specification for Python. MIT
voluptuous (🥈33 · ⭐ 1.8K) - CONTRIBUTIONS ONLY: Voluptuous, despite the name, is a Python data.. BSD-3
validators (🥈33 · ⭐ 1.1K) - Python Data Validation for Humans. MIT
python-email-validator (🥉32 · ⭐ 1.3K) - A robust email syntax and deliverability validation.. Unlicense
dirty-equals (🥉25 · ⭐ 940) - Doing dirty (but extremely useful) things with equals. MIT
Show 6 hidden projects...
- schematics (🥉31 · ⭐ 2.6K · 💀) - Python Data Structures for Humans.
BSD-3 - strictyaml (🥉29 · ⭐ 1.6K · 💀) - Type-safe YAML parser and validator.
MIT - valideer (🥉20 · ⭐ 260 · 💀) - Lightweight data validation and adaptation Python library.
MIT - validr (🥉17 · ⭐ 220 · 💀) - A simple, fast, extensible python library for data validation.
MIT - typical (🥉17 · ⭐ 180 · 💀) - Typical: Fast, simple, & correct data-validation using Python 3 typing.
MIT - dataklasses (🥉7 · ⭐ 810 · 💀) - A different spin on dataclasses.
❗Unlicensed
🔗 python-patterns ( ⭐ 43K) - Collection of design patterns/idioms in Python.
transitions (🥇33 · ⭐ 6.3K) - A lightweight, object-oriented finite state machine implementation.. MIT
algorithms (🥉29 · ⭐ 25K) - Minimal examples of data structures and algorithms in Python. MIT
Show 1 hidden projects...
dateparser (🥈34 · ⭐ 2.8K) - python parser for human readable dates. BSD-3
python-dateutil (🥉33 · ⭐ 2.6K) - Useful extensions to the standard Python datetime features. Apache-2
Show 2 hidden projects...
- isodate (🥉32 · ⭐ 170 · 💀) - ISO 8601 date/time parser.
BSD-3 - parsedatetime (🥉29 · ⭐ 710 · 💀) - Parse human-readable date/time strings.
Apache-2
