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horejsek/python-fastjsonschema

Fast JSON schema validator for Python.

Python ◇ developer-tools BSD-3-Clause

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★498STARS

⑂79FORKS

!2ISSUES

🏆#3,637GLOBAL RANK

🔥5DAYS TRENDING

🚀

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Star History

Continuous Observations

Interactive star growth chart for horejsek/python-fastjsonschema

Momentum

+12

STARS · LAST 30 DAYS

PER DAY

#439

MOST-STARRED Python

Window	7 days	30 days	90 days
Stars gained	+7	+12	+90
Per day	1	1	1
Forks gained	+1	+3	+10

python-fastjsonschema gained 12 stars in the last 30 days, about 1 a day, and now has 498. It is about 10 years old and has averaged roughly 50 stars a year. It ranks #439 among Python repositories and #3,637 across all languages on GitHubRepo.

Trending Record

python-fastjsonschema has maintained a continuous presence across global trending indexes, peaking at #1482. Below is the 30-day activity profile:

💡 Overview

python-fastjsonschema is an open-source project written in Python: Fast JSON schema validator for Python.

Engineered for speed, consistency, and developer ease, it solves common hurdles in Python. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.

⚡ Key Features

Optimized execution pipeline written in Python for predictable speed.

Zero-friction configuration with comprehensive sensible defaults out of the box.

Cross-platform runtime support across Linux, macOS, and Windows environments.

Strong typing and modular architecture designed for easy extension and maintainability.

Standardized CLI and API interfaces for smooth integration into CI/CD workflows.

Active community maintenance with regular dependency updates and security patches.

📥 Installation

terminal

$ pip install python-fastjsonschema

$ pip install python-fastjsonschema # or: brew install python-fastjsonschema

> pip install python-fastjsonschema

⚙ System Requirements

Platforms

• macOS
• Linux
• Windows

Runtime & Dependencies

Python >= 3.9, pip, virtualenv

Architecture

x86_64, ARM64 (Apple Silicon & Graviton)

🧠 How It Works

python-fastjsonschema coordinates its core functionality through a modular Python pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.

🎯 Production Use Cases

Production System Integration

Embed python-fastjsonschema into Python backend services to handle core application logic.

CI/CD Automated Pipelines

Run automated validation, builds, and integration suites during deployments.

Developer Tooling & Workflows

Accelerate developer onboarding with pre-configured project utilities.

Open Source Extension

Fork and customize internal modules under the repository's open BSD-3-Clause license.

🚀 Getting Started

Install python-fastjsonschema using your package manager: `pip install python-fastjsonschema`

Initialize your project workspace or configuration file for python-fastjsonschema.

Import python-fastjsonschema into your codebase or invoke it directly from your terminal.

Execute your test suite or run `python-fastjsonschema --help` to verify successful setup.

👍 Strengths

Active community backing with 498 GitHub stars and verified adoption.

Permissive open-source distribution under the BSD-3-Clause license.

Built in Python for high execution speed and developer familiarity.

Cross-platform compatibility across modern Linux, macOS, and Windows environments.

Clean modular design allowing flexible configuration and pipeline integration.

⚠️ Considerations

Requires familiarity with Python and modern CLI workflows.

Ecosystem extensions may require manual configuration depending on environment constraints.

Active development roadmap means breaking API changes may occur across major versions.

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👥 Who Should Use This

Developers and engineering teams building with Python, seeking reliable, tested, and actively maintained tooling for production workloads.

🏆 Nearby in the Rankings

horejsek/python-fastjsonschema is currently ranked #3,637 by stars across every repository tracked on GitHubRepo. These are adjacent projects:

Rank	Repository	Language	Stars	Action
#3,632	dustin/java-memcached-client	Java	★ 500	Compare ↗
#3,632	vim-perl/vim-perl	Vim Script	★ 500	Compare ↗
#3,632	mautrix/discord	Go	★ 500	Compare ↗
#3,635	mcollina/msgpack5	JavaScript	★ 499	Compare ↗
#3,635	Baeldung/kotlin-tutorials	Kotlin	★ 499	Compare ↗
#3,637	horejsek/python-fastjsonschema This Project	Python	★ 498
#3,637	runtipi/runtipi-appstore	JavaScript	★ 498	Compare ↗
#3,639	jamesgolick/resource_controller	Ruby	★ 497	Compare ↗
#3,639	btakita/rr	Ruby	★ 497	Compare ↗
#3,639	TryGhost/Ghost-CLI	JavaScript	★ 497	Compare ↗
#3,639	openai/tunnel-client	Go	★ 497	Compare ↗

Frequently Asked Questions

What does python-fastjsonschema do? +

Fast JSON schema validator for Python.

What language is python-fastjsonschema written in? +

The primary language is Python. Topics include: software.

Is python-fastjsonschema actively maintained? +

Yes, the last recorded push was on Sep 24, 2026 with 2 open issues being tracked.

How many stars does python-fastjsonschema have? +

python-fastjsonschema has 498 stars and 79 forks on GitHub.

How does python-fastjsonschema rank among GitHub repositories? +

With 498 stars, horejsek/python-fastjsonschema is ranked #3,637 globally across all repositories tracked on GitHubRepo and #439 among Python projects.

What license is python-fastjsonschema distributed under? +

The repository reports a BSD-3-Clause license. Always verify the repository LICENSE file for legal terms.

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LinkedIn

Why python-fastjsonschema is replacing paid subscriptions for engineering teams

Stop paying $50+/month for locked SaaS tools.

Over 498 developers have starred horejsek/python-fastjsonschema, an impressive Python open-source project designed to Fast JSON schema validator for Python.

Key Engineering Advantages:
• 100% Local-First: Complete data privacy with zero tracking or telemetry.
• Zero Subscription Costs: No paywalls, per-seat fees, or API markups.
• Complete Customization: Native open-source architecture you can fork, inspect, and deploy anywhere.
• Proven Adoption: 498 GitHub stars and 79 forks.

If you're looking to streamline your engineering workflows without ballooning software expenses, this is worth checking out.

👉 Full star velocity and architectural report: https://githubrepo.cloud/repo/horejsek/python-fastjsonschema
⭐ GitHub Repository: https://github.com/horejsek/python-fastjsonschema

#OpenSource #SoftwareEngineering #DeveloperTools #Tech #Programming #Python

🤖

Reddit (r/opensource, r/webdev, r/selfhosted)

Show r/opensource: python-fastjsonschema – A free, self-hosted tool that lets you Fast JSON schema validator for Python

Hey everyone,

I wanted to share an interesting open-source project called **python-fastjsonschema** (https://github.com/horejsek/python-fastjsonschema) that has been picking up heavy momentum lately (498 stars).

### What problem does it solve?
Many existing tools in this domain require expensive cloud plans or store your data on third-party servers. python-fastjsonschema was built with a local-first philosophy, allowing developers to Fast JSON schema validator for Python without recurring subscription costs or privacy compromises.

### Tech Stack & Details:
- **Language:** Python
- **License:** BSD-3-Clause
- **GitHub:** [horejsek/python-fastjsonschema](https://github.com/horejsek/python-fastjsonschema)
- **Live Star Momentum Tracker:** [https://githubrepo.cloud/repo/horejsek/python-fastjsonschema](https://githubrepo.cloud/repo/horejsek/python-fastjsonschema)

Has anyone here tested this in production or integrated it into existing pipelines? Would love to hear your experience and feedback!

🟧

Hacker News (Show HN)

Show HN: python-fastjsonschema – Fast JSON schema validator for Python

Hi HN,

python-fastjsonschema is an open-source Python project designed to Fast JSON schema validator for Python.

Rather than relying on closed cloud endpoints, it executes locally on your own machine, providing predictable latency, total privacy, and full control.

Repository: https://github.com/horejsek/python-fastjsonschema
Documentation & Metrics: https://githubrepo.cloud/repo/horejsek/python-fastjsonschema

Feedback and PRs are welcome.

✍️

Dev.to / Hashnode Tags: opensource, python, devtools, webdev

This GitHub repo replaces a $50 a month tool! Stop paying expensive software subscriptions. Meet python-fastjsonschema (498 GitHub Stars)

---
title: This GitHub repo replaces a $50 a month tool! Stop paying expensive software subscriptions. Meet python-fastjsonschema
published: true
tags: opensource, python, devtools, programming
---

## Stop Paying Software Subscriptions For This

Finding high-quality, production-ready open source alternatives to expensive proprietary software can save engineering teams thousands of dollars every year.

Today, we're looking at **[horejsek/python-fastjsonschema](https://github.com/horejsek/python-fastjsonschema)**, a rapidly rising repository with **498 GitHub stars** and **79 forks**.

### What is python-fastjsonschema?

> Fast JSON schema validator for Python

Written in **Python**, python-fastjsonschema runs directly on your local workstation or private server, keeping your data secure and eliminating recurring license fees.

### Key Highlights
- **High Performance:** Lightweight, reliable, and built in Python.
- **Privacy & Security:** Complete ownership of your environment and data.
- **Growing Momentum:** Ranked **#3,637** globally across tracked repositories on [GitHubRepo](https://githubrepo.cloud/repo/horejsek/python-fastjsonschema).

### Quick Start
To get started locally:

```bash
git clone https://github.com/horejsek/python-fastjsonschema.git
cd python-fastjsonschema
```

Check out the full repository and star history analytics here:
- **GitHub:** [horejsek/python-fastjsonschema](https://github.com/horejsek/python-fastjsonschema)
- **Star Velocity Tracker:** [python-fastjsonschema on GitHubRepo.cloud](https://githubrepo.cloud/repo/horejsek/python-fastjsonschema)

𝕏

X / Twitter Communities

Thread / Community Post for python-fastjsonschema

Developers are sleeping on this GitHub repo 👇

horejsek/python-fastjsonschema (498 ⭐) replaces expensive monthly software subscriptions with 100% free open source code.

⚡ What it does: Fast JSON schema validator for Python
💻 Built with: Python
🔒 100% local execution & privacy

Check live star velocity and benchmarks:
https://githubrepo.cloud/repo/horejsek/python-fastjsonschema

#opensource #developer #coding #tech #programming

🧵

Threads Topics

Topic Discussion: Open Source & Developer Tools

This GitHub repo replaces a $50/month tool! 🚀

If you want to save hours of manual work and stop paying subscriptions, check out horejsek/python-fastjsonschema.

It already has over 498 stars and lets you Fast JSON schema validator for Python.

Drop a comment if you've tried it, or check the full star momentum report:
https://githubrepo.cloud/repo/horejsek/python-fastjsonschema

From our network

horejsek/python-fastjsonschema

Star History

Momentum

Trending Record

💡 Overview

⚡ Key Features

📥 Installation

⚙ System Requirements

Platforms

Runtime & Dependencies

Architecture

🧠 How It Works

🎯 Production Use Cases

Production System Integration

CI/CD Automated Pipelines

Developer Tooling & Workflows

Open Source Extension

🚀 Getting Started

👍 Strengths

⚠️ Considerations

⇄ Alternatives & Direct Competitors

👥 Who Should Use This

🏆 Nearby in the Rankings

Frequently Asked Questions

Claim this repository

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