20 Best Developer Conferences in 2025

The world of software development is moving faster than ever. It's getting more and more challenging for developers stuck in their everyday routines with the only focus on the tasks ahead, to keep up with the updates, evolving tools, and trends.  

Attending software development conferences is a great way to stay updated, expand your horizons, gain practical skills, and just have fun. Not only that, but attending such events also allows developers to gain knowledge from industry leaders, network with like-minded people, and enhance their career development. They serve as perfect platforms for professional and personal growth.

Here are the top 20 software development conferences you should consider visiting in 2025!

NDC London 2025

Dates: January 27–31, 2025

Location: London, UK

NDC Oslo 2025

Dates: May 19–23, 2025

Location: Oslo, Norway

NDC Melbourne 2025

Dates: April 29-May 1, 2025

Location: Melbourne, Australia

NDC (Norwegian Developers Conference) is a renowned organizer of high-quality events for software developers. Each event attracts over 2,500 attendees who have the opportunity to participate in workshops, hands-on sessions, and talks that are suitable for both beginners and seasoned professionals. Each NDC lasts 5 days, with 2 days of pre-conference workshops and 3 days of conference sessions.  When it started in Oslo in 2008, it focused on .NET and Agile methodologies, but since then it has expanded to cover a wide range of technologies and practices related to modern software development. The conferences’ sessions are led by industry leaders and pioneers, providing attendees with information on the latest trends, tools, and best practices in software development. 

FOSDEM

Dates: February 1–2, 2025

Location: Brussels, Belgium

FOSDEM (Free and Open Source Developers' European Meeting) is an annual, free, and non-commercial 2-day event that brings together developers and contributors of free and open-source software (FOSS). Organized by volunteers, the event serves as a platform for networking, sharing knowledge, and promoting open-source solutions. It features developer rooms where teams can meet, collaborate, discuss the latest developments in the open-source world, showcase projects, and present talks from project leaders and committers on various topics. Since its foundation in 2000, the event has grown to be one of the largest in Europe, attracting over 5,000 developers annually. It provides a perfect space for developers to stay informed about the latest developments in open-source software. 

DeveloperWeek

Dates:  February 11 – 13, 2025

Location: California, USA

DeveloperWeek is the largest developer conference, gathering 8,000+ developers, engineers, software architects, managers, and executives from more than 70 countries.  It includes a conference, expo, hackathon, tech hiring fair, workshops, technical talks, and keynotes. Attendees can discover the latest in developer technologies, languages, platforms, and tools in VR Dev, Artificial Intelligence Dev, Blockchain Dev, IoT Dev, Serverless technology, Microservices technology, new JavaScript frameworks, and more. This year, the event also features the expanded DevExec World, which is 2 days of roundtable talks and networking events for engineering managers, tech executives, and lead developers. Past participants include Google, Facebook, IBM, Microsoft, and other notable names.

BASTA! Spring

Dates: March 3 – 7, 2025

Location: Frankfurt, Germany

BASTA! Spring is a leading conference for .NET, Web & AI Innovation that brings together 600+  software architects, developers, and IT professionals from the German-speaking region. Attendees can explore the latest tech trends, network with professionals from the .NET community, and gain hands-on experience through workshops, live coding, and two-day boot camps. This year’s event lasts 5 days and offers over 70 workshops, sessions, and keynotes on topics like C#, .NET, AI, cloud, JavaScript, and web development, covering the latest innovations, tools, and technologies in the software industry. 

Flutter Heroes

Date: March 12, 2025

Location: Turin, Italy

Flutter Heroes is a developer-focused conference that started only in 2022 and is dedicated to learning about the Flutter framework and networking with the Flutter community. While it lasts only one day and may not be as widely recognized as larger, less niche software development conferences, it plays a significant role within the Flutter community that continues to grow. Last year, it attracted 220+ participants and broadcasted to an additional 150+ participants who attended remotely. The show has an impressively international feel, with speakers, sponsors, and delegates participating from around the globe. It features hands-on workshops, expert talks, and a vibrant community to share experiences, practice, and simply have fun. 

JSWorld 2025

Dates: March 12-14, 2025

Location: Amsterdam, Netherlands

JSWorld Conference is the premier event for JavaScript enthusiasts, attracting over 2,500 developers, engineers, and industry leaders from over 50 countries each year. The conference aims to discuss the latest advances in JavaScript technologies and features a diverse range of speakers, including the creators and maintainers of major JavaScript frameworks and tools, with in-depth sessions on a variety of topics. This year’s topics cover AI in Frontend, LLMs and Generative AI, Web Performance, Agnostic JavaScript Tooling, TypeScript, Three.js, Deno, Astro, WebXR, Node.js, React, Vue, Angular 15, Qwik, Vite, and so much more. The conference also offers networking opportunities, hands-on workshops, and live coding sessions. In addition to the main conference, JSWorld 2025 will host “The Big JavaScript Game Show,” offering attendees the chance to win prizes and participate in interactive activities.

VSLive! Las Vegas

Dates: 10 – 14 March

Location: Las Vegas, USA

VSLive! Microsoft HQ: 

Dates: August 4 – 8, 2025

Location: Redwood, USA

VSLive! San Diego:

Dates: September 8 – 12, 2025

Location: San Diego, USA

VSLive! Orlando: 

Dates: November 16 – 21, 2025 

Location: Orlando, USA

VSLive! (Visual Studio Live!) is a series of conferences and events attracting thousands of developers, especially those working with Microsoft technologies. They are typically held in person across various locations in the US, but they also often include virtual or hybrid formats to reach a broader audience. These events provide developers with the latest insights, trends, best practices, and skills necessary to work effectively with tools like Visual Studio, .NET, Azure, and other Microsoft frameworks and technologies. VSLive! features sessions, hands-on workshops, and expert-led talks covering various topics related to cloud computing, web development, DevOps, data management, AI, machine learning, and modern web frameworks like Angular, React, and more.  Sessions range from beginner to advanced levels and are delivered by experienced trainers, industry experts, and Microsoft MVPs (Most Valuable Professionals). 

QCon London 2025

Dates: April 7 – 9, 2025

Location: London, UK

QCon San Francisco 2025

Dates: November 17-19

Location: San Francisco, USA

QCon is a series of international software development conferences attracting 1000+ senior developers, software architects, and technical team leads annually. It focuses on emerging software trends and innovations, providing attendees practical knowledge to adopt new technologies and best practices. The conferences feature a variety of sessions, including technical talks, workshops, and keynotes, led by industry experts and practitioners from early adopter companies. Topics cover a wide range of areas, such as software architecture, ML, DevOps, cloud computing, and more. QCon conferences stand out because of their practitioner-focused content, where attendees can learn from real-world experiences and case studies. The events provide a chance to network with peers and industry leaders, supporting professional growth and development.

React Miami

Dates: April 17 – 18, 2025 

Location: Florida, USA

React Miami is an annual conference that attracts over 500 developers, engineers, and tech enthusiasts from over 20 countries who work with or are interested in React. The conference features a variety of talks and workshops to discuss foundational topics and the latest advances in React and related technologies. It covers everything from best practices and case studies to advanced topics like performance optimization, server-side rendering, and testing. Sessions often include live coding, hands-on demos, and overviews of future trends in React development. React Miami is also a hub for networking with like-minded people, learning from peers, and engaging with the wider React community. Based in Miami, the conference offers a combination of professional development and a vibrant location. The casual yet professional atmosphere makes it ideal for both learning and relaxing.

PyCon US

Dates: May 14 – 22, 2025

Location: Philadelphia, USA

PyCon APAC 2025

Dates: March 1–2, 2025

Location: Quezon City, Philippines

PyCon Europe (EuroPython)

Dates: July 14-20, 2025

Location: Prague, Czech Republic

PyCon is the largest annual conference for the Python programming community, organized by the Python Software Foundation (PSF). While the main PyCon US is the flagship event, there are regional PyCon conferences worldwide, including PyCon Europe, PyCon Asia-Pacific, and more. PyCon is a key event for Python developers, data scientists, educators, and researchers to learn, share, and network. It features a wide range of topics covering Python libraries, frameworks, data science, data visualization, cybersecurity,  AI/ML, and web development, and is suitable for Python users of all skill levels. Following the conference days, there will be several days of free sprints, allowing attendees to collaborate and contribute to projects. PyCon also features additional events like a job fair for career opportunities, summits for focused discussions, open spaces for spontaneous sessions, and the PyLadies Auction to support women in Python.

Google I/O 2025

Dates: May 12-14, 2025

Location: Mountain View, USA

Google I/O is one of the most famous annual developer conferences held by tech giant Google. Since its inception in 2008, the event has become the premier venue for unveiling Google’s latest technologies, developer tools, software updates, and future plans. Most of the event is held virtually, but a limited number of attendees also attend on-site. The conference offers a wide range of sessions and workshops covering mobile development, web development, ML, and AI. Developers can tune in to live keynotes, watch on-demand technical sessions, and explore learning materials at their own pace. Details about this year’s program are still unavailable, but Google is likely to unveil further developments in its Gemini AI platform. Google I/O is a great event for attendees to network with peers, industry leaders, and Google experts.

International JavaScript Conference

Dates: May 12-15, 2025

Location: London, UK 

International JavaScript Conference is one of the leading events for developers working with JavaScript. Each year, the conference attracts over 4,000 JS developers, frontend and backend engineers, designers, and industry leaders. The event features keynotes, technical talks, and workshops led by some of the brightest minds in the JavaScript community. Topics include JavaScript frameworks (e.g., React, Angular, Vue.js), Node.js, frontend technologies, full-stack development, best practices in JavaScript development, and emerging trends in web development. The conference provides great opportunities to network with developers, tech companies, and startups, as well as access to a community of passionate JavaScript enthusiasts.

Microsoft Build 2025

Dates: TBA (usually held last days of May)

Location: Seattle, USA

Microsoft Build is another flagship annual conference held by Microsoft. It targets software engineers and web developers using Microsoft Azure, developer tools like Visual Studio, and other Microsoft technologies. During the event, Microsoft presents its latest innovations and tools within the Microsoft ecosystem. For instance, during the last events, it presented its advancements in AI, such as Azure OpenAI Service, Microsoft Copilot, and AI integrations across Microsoft 365. The conference also features hands-on coding sessions to learn new tools, frameworks, and best practices. Microsoft Build has historically been an in-person event, with the tickets sold out in minutes. However, in 2020, Microsoft canceled the event because of the Covid pandemic and held a completely free virtual conference. In 2023, the event transitioned to a hybrid format with a free virtual event and paid in-person conferences and workshops. 

RenderATL

Date: June 11 – 13, 2025

Location: Georgia, USA

RenderATL is an annual tech event and expo dedicated to web and software development, with a special focus on front-end technologies. It brings together developers, engineers, designers, and tech enthusiasts from around the world to learn cutting-edge tools, trends, and techniques in web development. The conference initially focused on React but has since expanded to cover a wide range of topics such as JavaScript, React, Vue.js, web performance, CSS, and UX/UI design, and is suitable for developers of all skill levels. Attendees can take part in hands-on workshops and insightful sessions led by industry experts. RenderATL has a community-oriented atmosphere and offers developers numerous opportunities to network, collaborate, and learn from each other. Although it only started in 2019, it is quickly becoming a must-attend conference for front-end developers and anyone interested in the future of web development. Render ATL 2024 was attended by over 4,500 people, a 1,200% increase over previous years.

React Summit

Dates: Jun 13-17, 2025

Location: Amsterdam, Netherlands

React Summit US 

Dates: November 19-22, 2025

Location: NY, USA

React Summit is a premier annual event for React developers, gathering over 10,000 frontend and full-stack engineers from all over the world. Originally exclusively in-person, React Summit now offers a hybrid format with both remote and in-person participation. React Summit features over 60 speakers sharing the latest insights in React development with sessions on frameworks, tools, best practices, and interactive entertainment. The event offers plenty of opportunities to connect with peers, speakers, and industry leaders through various interactive sessions and social events, including city tours and parties. The conference will host the React Open Source Awards, celebrating outstanding contributions to the React ecosystem.  In addition to the main event in Amsterdam, React Summit is expanding this year to the United States. 

LDX3 by Lead Dev London

Dates: June 16-17, 2025

Dates: London, UK

LeadDev New York

Dates: September 3–4, 2025

Location: NY, USA

LeadDev Berlin

Dates: November 3-4, 2025

Location: Berlin, Germany

LeadDev is a highly regarded conference series designed specifically for engineering leaders, technical team leads, managers, and CTOs. While events might not focus heavily on hands-on coding or technical deep dives, they are still highly relevant to developers who are moving into positions like team leads, engineering managers, or tech leads, as well as for developers interested in understanding the bigger picture of software engineering, such as team dynamics, scaling systems, and collaboration across teams. It provides a platform for software engineering professionals to share insights, discuss best practices, and develop skills needed for effective leadership in the tech industry. Topics include building effective teams, scaling engineering organizations, improving communication, managing stakeholder expectations, and enhancing team culture. 

Open Source Summit North America 2025

Dates: June 23–25, 2025

Location: Denver, Colorado, USA

Open Source Summit Europe 2025

Dates: August 25–27, 2025

Location: Amsterdam, Netherlands

Open Source Summit Japan 2025

Dates: December 8–10, 2025

Location: Tokyo, Japan

Open Source Summit is a premier event series organized by the Linux Foundation, gathering thousands of visitors annually. It is a central hub for open-source developers, technologists, and community leaders to collaborate, share insights, and drive innovation within the open-source ecosystem. The event offers a comprehensive program covering the latest topics in open technologies, including Linux, cloud computing, AI, security, and more. It features workshops, tutorials, and labs for attendees to gain practical knowledge and deepen their technical skills. 

WeAreDevelopers World Congress

Date: 9 – 11 July, 2025

Location: Berlin, Germany

WeAreDevelopers World Congress is the flagship annual conference for software developers and technology decision makers. The event is renowned for its comprehensive coverage of current trends and innovations in software development. It allows over 15,000 attendees to exchange the latest ideas and technology developments, expand their knowledge, and advance their careers. The congress covers a variety of topics, including software development, AI, cloud computing, DevOps, architecture, interface and UI/UX, cybersecurity, blockchain, and more. It includes workshops, coding sessions, and interactive events to enhance practical skills and knowledge. Attendees have ample opportunities to learn and network with peers, share knowledge, and explore collaboration opportunities.

TechBash

Dates: Nov 4-7, 2025

Location: Pocono Manor, PA, USA

essionals, and technology enthusiasts every year. It offers a mix of networking opportunities and experiences, including three full days of keynotes and breakout sessions from industry experts, plus an optional fourth day of hands-on workshops to help attendees improve their skills. The event covers different topics spanning cloud computing, software development, DevOps, security, .NET, JavaScript, and more. Attendees can participate in panels, ask questions, and contribute to conversations about the future of technology and development practices. TechBash has become a popular event for developers and tech professionals looking to deepen their knowledge and skills in a fun, collaborative, and inclusive environment.

AWS re:Invent 2025

Date: December 1-5, 2025 

Location: Las Vegas, USA

AWS re:Invent is an annual global conference hosted by the world's leading cloud computing provider, AWS, and designed for the AWS community. It brings together cloud professionals, developers, engineers, architects, and business leaders to learn about the latest advancements in AWS, innovations like generative AI, analytics, cloud operations, and best practices in cloud technologies. Attendees can quickly advance their skills by choosing from over 2,000 educational sessions. The five-day event includes keynotes, breakout sessions, lectures, interactive learning, and numerous opportunities to discover innovative ideas and make career-changing connections.