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Top 23 Python Pydantic Projects
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🔗 New to FastAPI? Check out FastAPI's official documentation.
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Nutrient
Nutrient - The #1 PDF SDK Library. Bad PDFs = bad UX. Slow load times, broken annotations, clunky UX frustrates users. Nutrient’s PDF SDKs gives seamless document experiences, fast rendering, annotations, real-time collaboration, 100+ features. Used by 10K+ devs, serving ~half a billion users worldwide. Explore the SDK for free.
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Source: https://github.com/fastapi/sqlmodel
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Project mention: Show HN: Web Development with Htmx, Type-Guided Components, Pure Python | news.ycombinator.com | 2024-06-04
How do you compare withhttps://github.com/pydantic/FastUI (made by the authors of Pydantic)?
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Project mention: The filesystem - a quick & dirty way to store temp data in your API | dev.to | 2025-03-14
The service was built with Django Ninja, and it's not connected to a database. I thought about setting one up for this feature. But I couldn't be bothered dealing with the configuration and the migrations. I wasn't sure how long I'd be collecting this data for.
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litestar
Production-ready, Light, Flexible and Extensible ASGI API framework | Effortlessly Build Performant APIs
Project mention: Best Backend Frameworks for 2025: A Developer's Guide to Making the Right Choice | dev.to | 2025-02-02Litestar: The New Python Performance King
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opyrator
🪄 Turns your machine learning code into microservices with web API, interactive GUI, and more.
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datamodel-code-generator
Pydantic model and dataclasses.dataclass generator for easy conversion of JSON, OpenAPI, JSON Schema, and YAML data sources.
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Project mention: Pydantic Logfire Switches from Timescale to Datafusion | news.ycombinator.com | 2024-08-29
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uvicorn-gunicorn-fastapi-docker
Docker image with Uvicorn managed by Gunicorn for high-performance FastAPI web applications in Python with performance auto-tuning.
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Project mention: Lessons from building a small-scale AI application | news.ycombinator.com | 2025-01-23
- The "Django" level: additionally handle how data is indexed for RAG, standard patterns of connecting the pieces, possibly GUI, support for plugins.
It seems langchain and llamaindex are aiming to be the latter, and I'm building https://magentic.dev to be the former. I'd be interested to get your take on whether these abstractions would allow you stray from the narrow path while still being helpful!
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prisma-client-py
Prisma Client Python is an auto-generated and fully type-safe database client designed for ease of use
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fastcrud
FastCRUD is a Python package for FastAPI, offering robust async CRUD operations and flexible endpoint creation utilities.
fastcrud - CRUD operations for FastAPI
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Python Pydantic discussion
Python Pydantic related posts
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The filesystem - a quick & dirty way to store temp data in your API
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PydanticAI
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Show HN: Jsonblog-schema – a JSON schema for making your blog from one file
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Pydantic.ai: Python agent framework from Pydantic team
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Django Ninja
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This Week In Python
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PydanticAI is a Python agent framework by the Pydantic Team
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A note from our sponsor - CodeRabbit
coderabbit.ai | 15 Mar 2025
Index
What are some of the best open-source Pydantic projects in Python? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | fastapi | 81,826 |
| 2 | pydantic | 22,795 |
| 3 | sqlmodel | 15,390 |
| 4 | FastUI | 8,752 |
| 5 | django-ninja | 7,842 |
| 6 | pydantic-ai | 6,954 |
| 7 | litestar | 6,092 |
| 8 | rocketry | 3,321 |
| 9 | opyrator | 3,118 |
| 10 | docarray | 3,022 |
| 11 | datamodel-code-generator | 3,011 |
| 12 | vizro | 2,824 |
| 13 | logfire | 2,818 |
| 14 | uvicorn-gunicorn-fastapi-docker | 2,732 |
| 15 | beanie | 2,241 |
| 16 | magentic | 2,221 |
| 17 | prisma-client-py | 1,982 |
| 18 | ormar | 1,714 |
| 19 | pydantic-core | 1,521 |
| 20 | redis-om-python | 1,174 |
| 21 | polyfactory | 1,147 |
| 22 | odmantic | 1,107 |
| 23 | fastcrud | 969 |
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Bad PDFs = bad UX. Slow load times, broken annotations, clunky UX frustrates users. Nutrient’s PDF SDKs gives seamless document experiences, fast rendering, annotations, real-time collaboration, 100+ features. Used by 10K+ devs, serving ~half a billion users worldwide. Explore the SDK for free.
nutrient.io