What we’re about
We talk about JavaScript. Every month in Warsaw, Poland.
Homepage: http://warsawjs.com
YouTube: https://youtube.com/warsawjs
WarsawJS is a local community of JavaScript professionals and enthusiasts. We meet every month to talk and debate about our favorite programming language. This community is focused on sharing experience from different fields on which JS is used, from web browsers, to servers, dev tools, mobiles, smart tvs, micro controllers, databases, video games and so on. We increase our collective knowledge, by building integrated network of skilled individuals and local companies. Join Us Today!
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Are you interested in conferences?
Once per year we organize ConfrontJS: https://confrontjs.pl/
Upcoming events (2)
See all- WarsawJS JamCIC - Warsaw, Warsaw
WarsawJS Jam is a hands‑on micro hackathon that offers:
- Expert Mentorship – guidance from seasoned coaches
- AI‑Powered Development – work with tools such as Cursor AI to dramatically accelerate your workflow
- Networking – open, knowledge‑sharing sessions with developers of all experience levels
Follow the latest updates and registration details at 👉 jam.warsawjs.com
Join in to build projects, sharpen your skills, and connect with a community that loves JavaScript!Space limited to 16 people!
- WarsawJS Meetup #129 - onsiteNeeds locationPLN 61.50
Join the community that loves code and isn’t afraid to ask the hard questions.
WarsawJS Meetup #129 is more than just presentations - it’s a space where we share experience, learn, and grow together.
Date: 13 August 2025
Location: TBA
Time: 18:30 - 21:30
What to expect?
🎤 Marcin Borkowski - “Taming massive files in the browser: chunking, streaming & reviewing”
Staff Software Engineer at Box (ex-Netflix). With 20 + years of experience, he’ll show you how to tame gigabyte-scale uploads, slice them into resumable chunks, stream huge CSVs, and build lightning-fast UIs.
🎤 Piotr Migdał - “Thanks to AI, you can WASM. Yes, even in Rust!”
CTO at Quesma and co-creator of Quantum Flytrap. Discover how a few well-crafted prompts unlock WebAssembly and Rust super-powers on the frontend.
🎤 Third speaker - TBA
⚡️ Oskar Korczak - “Prompt compressor” (Lightning Talk)
Seasoned SWE. Learn a simple prompt-compression technique that can slash your LLM bills right away.
Emcee: Mikhail Korolev
Networking: conversations, code, and contacts - the things we love most!
Save the date and join us - we look forward to seeing you!
Sponsors: Xfaang | TBA
Media partner: K MAG Magazine
Partner: JetBrains
‼️ By attending the event, you agree to the event regulations:
https://bit.ly/warsawjs-meetup-regulations
