Open Source Licenses

Next Piece is built on the shoulders of amazing open source projects. Here's our gratitude and attribution to the tools that make this possible.

Our Commitment

We believe in the power of open source software. Next Piece is made possible by countless contributors to the open source community. This page acknowledges the libraries, frameworks, and tools we use, along with their respective licenses. We comply with all license requirements and encourage you to explore these amazing projects.

Dependencies & Attributions

The following open source projects power Next Piece. Click the links to learn more about each project.

Core Framework

Next.js

v15.x

React framework for production

MIT

React

v19.x

JavaScript library for building user interfaces

MIT

TypeScript

v5.x

Typed superset of JavaScript

Apache-2.0

UI & Styling

Tailwind CSS

v3.x

Utility-first CSS framework

MIT

Radix UI

v1.x

Unstyled, accessible UI components

MIT

Framer Motion

v11.x

Production-ready motion library for React

MIT

Lucide React

vlatest

Beautiful & consistent icon toolkit

ISC

Backend & Database

Supabase

v2.x

Open source Firebase alternative

Apache-2.0

PostgreSQL

v15.x

Powerful, open source object-relational database

PostgreSQL License

AI & Image Processing

Replicate

vlatest

Run machine learning models in the cloud

Apache-2.0

Flux (via Replicate)

vlatest

State-of-the-art image generation model

Apache-2.0

Real-ESRGAN

vlatest

Image upscaling and restoration

BSD-3-Clause

Python Backend

FastAPI

v0.104.x

Modern, fast web framework for building APIs

MIT

NumPy

v1.26.x

Fundamental package for scientific computing

BSD-3-Clause

Pillow (PIL)

v10.x

Python Imaging Library

HPND

SciPy

v1.11.x

Scientific computing library

BSD-3-Clause

Payment Processing

Stripe

vlatest

Payment processing platform

MIT

License Explanations

Brief overview of the open source licenses used by our dependencies.

MIT License

Permissive license that allows commercial use, modification, distribution, and private use. Requires preservation of copyright and license notices.

Apache-2.0

Permissive license similar to MIT but also provides an express grant of patent rights from contributors to users.

BSD-3-Clause

Permissive license similar to MIT but with a "no endorsement" clause, prohibiting use of project names for promotion without permission.

ISC License

Functionally equivalent to MIT and BSD 2-Clause licenses, but with simplified language.

PostgreSQL License

Liberal open source license similar to BSD or MIT licenses.

Next Piece Platform License

The Next Piece platform and its proprietary code are © 2026 Next Piece. All rights reserved.

While we utilize open source libraries (as listed above), the Next Piece platform itself, including its design, features, algorithms, and proprietary code, is not open source.

User-Generated Content: All puzzle designs created by users remain the intellectual property of their creators. See our Terms of Service for details on licensing and marketplace rights.

Thank you to all open source contributors who make projects like Next Piece possible. 💜

Last Updated: January 1, 2026