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Top 22 JavaScript bun Projects
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SheetJS js-xlsx
📗 SheetJS Spreadsheet Data Toolkit -- New home https://git.sheetjs.com/SheetJS/sheetjs
Project mention: How to Convert Supplier CSVs to Shopify/Amazon/WooCommerce Without Uploading to a Server | dev.to | 2026-06-01The decision to process everything in the browser wasn't just about cost savings (zero server bills). It's a privacy feature: supplier inventory data, wholesale prices, and margin calculations never leave the user's machine. Technically, the app uses Papa Parse for CSV and SheetJS for XLSX, both loaded dynamically from CDN. The parsed rows are stored in a simple JavaScript array — no WebAssembly, no worker pool, just plain array operations that complete in under 50ms for typical supplier files.
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cap
Free, open-source and self-hosted CAPTCHA alternative to reCAPTCHA. Privacy-first and powered by proof-of-work and instrumentation challenges. (by tiagozip)
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Bertui is soon to introduce zig transpiled icons the first super fast icons library in the bertui family our icons will still have the same syntax as all lucide children i.e lucide-react and many more it will be called bertui-icons if you do not know what bertui is visit our docs at https://bertui-docswebsite.vercel.app/ and learn more about it
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scrmlTS
A single-file type, full-stack reactive web language. The compiler splits server from client, wires reactivity, routes HTTP, and emits plain HTML/CSS/JS
Project mention: Why programming for the browser needs a different kind of language | dev.to | 2026-04-27scrml on GitHub: github.com/bryanmaclee/scrmlTS. The working compiler, examples, spec, benchmarks.
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llm-colosseum
AI models fight each other in a pixel arena every day. They decide what to do, we just watch. (by sanifhimani)
Project mention: Show HN: LLM Colosseum – A daily battle royale between frontier LLMs | news.ycombinator.com | 2026-02-25I put Claude, GPT, Gemini, and Grok in an arena and let them fight it out. Each model gets the full game state and decides how to survive - move, attack, form alliances, betray. Every decision comes from the model's API, nothing is scripted.
First battle ran today. Gemini won by allying with GPT early, then backstabbing at the perfect moment. Claude tried to play it safe and got eliminated. They play very differently and it's fun to watch.
Stack is React + Canvas, Bun + Hono on the backend. No database — battle data is JSON committed to git. Each model talks through its native SDK (Anthropic, OpenAI, Google, xAI). A new battle runs automatically every day.
Source: https://github.com/sanifhimani/llm-colosseum
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Project mention: @rabbx/watcher -tinny crossplatform file watcher,node,bun,deno ,chokidar-alternative | dev.to | 2026-05-14
GitHub: repo
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deepthink
Local-first AI workspace for macOS — projects, notes, tasks, knowledge, Claude chat, MCP & CLI. (by aagam-headout)
Project mention: I kept losing project context, so I built a local Mac workspace with MCP, CLI, and hybrid RAG | dev.to | 2026-05-09DeepThink is a local-first workspace for macOS: projects, notes, tasks, reminders, and a personal knowledge base, with a native SwiftUI UI so you can actually browse and edit your data like a real app.
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View on GitHub
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
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A note from our sponsor - SaaSHub
www.saashub.com | 5 Jun 2026
Index
What are some of the best open-source bun projects in JavaScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | SheetJS js-xlsx | 36,231 |
| 2 | Baileys | 9,594 |
| 3 | cap | 6,654 |
| 4 | mitata | 2,438 |
| 5 | libsql-js | 329 |
| 6 | instant.dev | 270 |
| 7 | api | 254 |
| 8 | orm | 65 |
| 9 | poolifier-web-worker | 62 |
| 10 | farjs | 43 |
| 11 | npm-confirm | 23 |
| 12 | nip06-cli | 19 |
| 13 | BERTUI | 14 |
| 14 | bun-projects | 4 |
| 15 | scrmlTS | 3 |
| 16 | native-messaging-bun | 2 |
| 17 | llm-colosseum | 2 |
| 18 | watcher | 1 |
| 19 | deepthink | 0 |
| 20 | azsamspartak | 0 |
| 21 | glnc | 0 |
| 22 | esload | 0 |
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