Top 10 Open Source Alternatives to Uniqode in 2025

Uniqode has set a high standard for QR code generation and management, but the open-source community also offers a plethora of alternatives that cater to diverse needs. Whether you're looking to generate QR codes, manage them dynamically, or integrate them into larger systems, this article explores the top 10 open-source alternatives available in 2025.

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1. PHP QR Code

Description: An open-source PHP library for generating QR codes based on the libqrencode C library.
Key Features:
Purely implemented in PHP.
Generates QR codes as PNG or JPEG images.
Reliable encoding using libqrencode.
Integration into PHP applications for dynamic QR generation.
Free under the LGPL license.
Data Points:
License: LGPL
Programming Language: PHP
Image Formats: PNG, JPEG
Primary Function: QR Code generation
Integration: Can be used with CMS like WordPress

Explore PHP QR Code

2. QRCoder

Description: A pure C# open-source library for creating QR codes without dependencies on external services.
Key Features:
Entirely written in C#.NET.
Available for .NET Framework and .NET Core.
Generates QR codes independently.
Flexible output options.
Open-source and free to use.
Data Points:
License: Open Source
Programming Language: C#
.NET Compatibility: .NET Framework and .NET Core
Dependency: No external dependencies
Primary Function: QR Code Generation

Discover QRCoder

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3. ConQR

Description: An open-source QR code ticketing system designed for event management, written in Python.
Key Features:
Built with Python, no third-party modules needed.
Simplifies issuance and tracking of QR codes.
Database tracking for issued tickets.
Suitable for event ticketing and access control.
Customizable and open-source.
Data Points:
License: Open Source
Programming Language: Python
OS Compatibility: Windows, Linux, macOS
Primary Function: QR Code Ticketing System
Data Tracking: Database for ticket tracking

Learn more about ConQR

4. qrdolphin

Description: An open-source work-in-progress QR code management solution offering both static and dynamic QR code generation.
Key Features:
Generates static and dynamic QR codes.
Tracks total scans, unique scans, device/browser/OS, location, and time.
Customizable QR code generation.
All-in-one management.
Open-source under the MIT license.
Data Points:
License: MIT License
Programming Language: NodeJS, React-Native
QR Code Types: Static and Dynamic
Tracking: Total Scans, Unique Scans, Device Info, Location, Time
Primary Function: QR Code Management

Explore qrdolphin

5. ZXing (Zebra Crossing)

Description: A multi-format 1D/2D barcode image processing library available on multiple platforms.
Key Features:
Supports various barcode formats, including QR codes.
Encoding and decoding capabilities.
Available on multiple platforms: Java, C++, C#, Python, etc.
Widely used and well-maintained.
Open-source and actively developed.
Data Points:
License: Apache License 2.0
Primary Function: QR Code Generation and Scanning
Platform Support: Multi-platform
Programming Languages: Java, C++, C#, Python, and more
Functionality: Encoding and Decoding

Discover ZXing

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6. SimpleQRCode

Description: A simple standalone QR code generator that allows data transfer from a computer to a mobile device.
Key Features:
Offline operation, no network required.
Secure data transfer between devices.
Supports text input via clipboard.
Simple standalone executable.
Open-source using the Nayuki Library (MIT license).
Data Points:
License: MIT License (via Nayuki library)
Programming Language: C++
Dependency: Nayuki library
Primary Function: QR Code generation for data transfer
Portability: Standalone executable

Learn more about SimpleQRCode

7. JAQRGen - Just Another QR Code Generator

Description: A QR code generator utilizing the SkiaSharp library for easy, offline generation.
Key Features:
Simple to use.
Uses SkiaSharp QR code library.
Functions offline.
Basic but effective generator.
Open-source.
Data Points:
License: Open Source
Primary Function: QR Code Generation
Dependency: SkiaSharp
Operating System: Unknown
Connectivity: Offline

Explore JAQRGen

8. sylnsfar/qrcode

Description: A Python library designed for generating artistic QR codes, including GIFs.
Key Features:
Generates QR codes in various image formats.
Artistic and customizable QR codes.
Written in Python.
Can add graphics or style to codes.
Open-source and actively maintained.
Data Points:
License: Open Source
Programming Language: Python
Primary Function: QR Code generation (artistic options)
Output Formats: Image files including GIFs
Customization: Artistic options

Discover sylnsfar/qrcode

9. rqrcode

Description: A Ruby library that generates QR codes and exports to SVG, PNG, and ANSI formats with configurable attributes.
Key Features:
Multiple output formats.
Customizable size and color.
Written in Ruby.
Simple and efficient.
Open-source.
Data Points:
License: Open Source
Programming Language: Ruby
Primary Function: QR Code generation
Output Formats: SVG, PNG, ANSI
Customization: Size and color attributes

Learn more about rqrcode

10. AwesomeQRCode (Kotlin)

Description: An open-source QR code generator for Android, capable of creating animated GIFs.
Key Features:
Designed for Android.
Generates customizable QR codes, including animated GIFs.
Built with Kotlin.
Offers customization features.
Open-source.
Data Points:
License: Open Source
Primary Function: QR Code generation (Android)
Programming Language: Kotlin
Output Formats: GIF and other image formats
Platform: Android

Explore AwesomeQRCode (Kotlin)

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FAQ

1. What is PHP QR Code?

PHP QR Code is an open-source PHP library for generating QR codes in PNG and JPEG formats. It is based on the libqrencode C library and integrates with CMS like Wordpress. Learn more about PHP QR Code

2. What does QRCoder offer?

QRCoder is a pure C# open-source library for creating QR codes without dependencies on other libraries or network services, making it compatible with .NET Framework and .NET Core. Explore QRCoder

3. How does ConQR function?

ConQR is a QR code ticketing system built in Python for Windows, Linux, and macOS, focusing on ticket issuance and tracking. Discover ConQR

4. What is qrdolphin?

qrdolphin is an open-source QR code management solution generating both static and dynamic QR codes, with tracking capabilities like total scans, unique scans, and device info. Learn more about qrdolphin

5. What is ZXing known for?

ZXing is a multi-format barcode image processing library available on multiple platforms, supporting encoding and decoding of QR codes among other formats. Explore ZXing

6. What does SimpleQRCode do?

SimpleQRCode is a standalone executable that generates QR codes for secure data transfer between devices, working offline and supporting text input via clipboard. Learn more about SimpleQRCode

7. What is JAQRGen?

JAQRGen is an easy-to-use QR code generator that uses the SkiaSharp library, designed to work offline with a simple interface. Explore JAQRGen

8. What makes sylnsfar/qrcode unique?

sylnsfar/qrcode is a Python library that generates artistic QR codes, including GIFs, with various customization options for creativity. Discover sylnsfar/qrcode

9. What can rqrcode do?

rqrcode is a Ruby QR code generator that exports to SVG, PNG, and ANSI formats, allowing customization of size and color attributes. Learn more about rqrcode

10. What is AwesomeQRCode (Kotlin)?

AwesomeQRCode (Kotlin) is an open-source QR code generator for Android, capable of producing customizable QR codes, including animated GIFs. Explore AwesomeQRCode (Kotlin)

References

About the Author

Violetta Bonenkamp, also known as MeanCEO, is an experienced startup founder with an impressive educational background including an MBA and four other higher education degrees. She has over 20 years of work experience across multiple countries, including 5 years as a solopreneur and serial entrepreneur. She’s been living, studying and working in many countries around the globe and her extensive multicultural experience has influenced her immensely.

Violetta is a true multiple specialist who has built expertise in Linguistics, Education, Business Management, Blockchain, Entrepreneurship, Intellectual Property, Game Design, AI, SEO, Digital Marketing, cyber security and zero code automations. Her extensive educational journey includes a Master of Arts in Linguistics and Education, an Advanced Master in Linguistics from Belgium (2006-2007), an MBA from Blekinge Institute of Technology in Sweden (2006-2008), and an Erasmus Mundus joint program European Master of Higher Education from universities in Norway, Finland, and Portugal (2009).

She is the founder of Fe/male Switch, a startup game that encourages women to enter STEM fields, and also leads CADChain, and multiple other projects like the Directory of 1,000 Startup Cities with a proprietary MeanCEO Index that ranks cities for female entrepreneurs. Violetta created the "gamepreneurship" methodology, which forms the scientific basis of her startup game. She also builds a lot of SEO tools for startups. Her achievements include being named one of the top 100 women in Europe by EU Startups in 2022 and being nominated for Impact Person of the year at the Dutch Blockchain Week. She is an author with Sifted and a speaker at different Universities. Recently she published a book on Startup Idea Validation the right way: from zero to first customers and beyond and launched a Directory of 1,500+ websites for startups to list themselves in order to gain traction and build backlinks.

For the past several years Violetta has been living between the Netherlands and Malta, while also regularly traveling to different destinations around the globe, usually due to her entrepreneurial activities. This has led her to start writing about different locations and amenities from the POV of an entrepreneur. Here’s her recent article about the best hotels in Italy to work from.

About the Publication

Fe/male Switch is an innovative startup platform designed to empower women entrepreneurs through an immersive, game-like experience. Founded in 2020 during the pandemic "without any funding and without any code," this non-profit initiative has evolved into a comprehensive educational tool for aspiring female entrepreneurs.The platform was co-founded by Violetta Shishkina-Bonenkamp, who serves as CEO and one of the lead authors of the Startup News branch.

Mission and Purpose

Fe/male Switch Foundation was created to address the gender gap in the tech and entrepreneurship space. The platform aims to skill-up future female tech leaders and empower them to create resilient and innovative tech startups through what they call "gamepreneurship". By putting players in a virtual startup village where they must survive and thrive, the startup game allows women to test their entrepreneurial abilities without financial risk.

Key Features

The platform offers a unique blend of news, resources,learning, networking, and practical application within a supportive, female-focused environment:

Skill Lab: Micro-modules covering essential startup skills
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AI Co-founder (PlayPal): Guides users through the startup process
SANDBOX: A testing environment for idea validation before launch
Wellness Integration: Virtual activities to balance work and self-care
Marketplace: Buy or sell expert sessions and tutorials

Impact and Growth

Since its inception, Fe/male Switch has shown impressive growth:

3,000+ female entrepreneurs in the community
100+ startup tools built
5,000+ pieces of articles and news written

Partnerships

Fe/male Switch has formed strategic partnerships to enhance its offerings. In January 2022, it teamed up with global website builder Tilda to provide free access to website building tools and mentorship services for Fe/male Switch participants.

Recognition

Fe/male Switch has received media attention for its innovative approach to closing the gender gap in tech entrepreneurship. The platform has been featured in various publications highlighting its unique "play to learn and earn" model.