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Top 23 JavaScript Deno Projects
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SheetJS js-xlsx
š SheetJS Spreadsheet Data Toolkit -- New home https://git.sheetjs.com/SheetJS/sheetjs
Project mention: š§© I Built a Simple Tool to Merge Excel Files ā the Lazy Way | dev.to | 2025-07-01ć»HTML + JavaScript (frontend only) ć»SheetJS(xlsx) for parsing Excel/CSV files ć»FileReader API for reading files in-browser ć»Clipboard API for copying to clipboard
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SurveyJS
JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor. Keep full control over the data you collect and tailor the form builderās entire look and feel to your usersā needs. SurveyJS works with React, Angular, Vue 3, and is compatible with any backend or auth system. Learn more.
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Project mention: How to Implement Translations in a React App Using TypeScript? | dev.to | 2025-05-13
The first step to implementing translations in a React app is to choose an appropriate library. One of the most popular libraries in the React ecosystem is i18next, which provides powerful features for internationalization. It allows you to easily manage translations, plural forms, and formatting.
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postgres
Postgres.js - The Fastest full featured PostgreSQL client for Node.js, Deno, Bun and CloudFlare (by porsager)
postgres driver
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microdiff
A fast, zero dependency object and array comparison library. Significantly faster than most other deep comparison libraries and has full TypeScript support.
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zip.js
JavaScript library to zip and unzip files supporting multi-core compression, compression streams, zip64, split files and encryption.
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serverless-dns
The RethinkDNS resolver that deploys to Cloudflare Workers, Deno Deploy, Fastly, and Fly.io
Project mention: RethinkDNS Resolver That Deploys to CF Workers, Deno Deploy, Fastly, Fly.io | news.ycombinator.com | 2025-05-03 -
Project mention: Show HN: Made a small JavaScript benchmarking app ā BenchJS | news.ycombinator.com | 2025-01-02
Mostly I want to benchmark code in our production monorepo, so a web tool doesnāt make much sense. We have a bunch of data structure code and standard utility libraries so itās not feasible to copy everything into a web form.
When doing data structure work Iāve started writing micro benchmark files with mitata (https://github.com/evanwashere/mitata) which does a decent job running GC between runs and outputs some very cute graphs and such. I recently rewrote a core container class we use at Notion and for a 5% speed up on a bunch of our public API routes.
OP, I see you have a mitata-inspired benchmark library ābenchmateā, Iām curious about difference from mitata, what was missing from it, features added? I looked a bit at the code and itās certainly easier to readā¦ mitata codebase feels like C written by someone whoās too smart.
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InfluxDB
InfluxDB ā Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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single-file-cli
CLI tool for saving a faithful copy of a complete web page in a single HTML file (based on SingleFile)
Project mention: SingleFile ā Effortlessly Save and Preserve Web Pages | news.ycombinator.com | 2025-07-06 -
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qbin
QBin: č½»éé«ęēåØēŗæē¼č¾äøåäŗ«å¹³å° | Monaco+Cherry Markdownäøäøē¼č¾åØ | Deno KV+DrizzleORM+EdgeCacheå¤ēŗ§ē¼å | PWAē¦»ēŗæč®æé®+IndexedDBååØ | čŖå®ä¹ēé¾+åÆē +ęęę | ęÆęęę¬/代ē /å¾ē/č§é¢ | OAuth2ē»å½ | ęęäø»é¢ | å®ę¶äæå | Docker/Denoäøé®éØē½² | PasteBinęæ代ę¹ę”
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i18next-http-backend
i18next-http-backend is a backend layer for i18next using in Node.js, in the browser and for Deno.
i18n // load translation using http -> see /public/locales // learn more: https://github.com/i18next/i18next-http-backend .use(Backend) // detect user language // learn more: https://github.com/i18next/i18next-browser-languageDetector .use(LanguageDetector) // pass the i18n instance to react-i18next. .use(initReactI18next) // init i18next // for all options read: https://www.i18next.com/overview/configuration-options .init({ ns: [ "translation", "header", "note", "settings", "zod", "custom", "introduce", "message", ], defaultNS: "translation", fallbackLng: "en", debug: false, detection: { caches: ["localStorage"], }, }); export default i18n;
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Project mention: Libsql-JS ā SQLite-compatible library that works in Node, Deno, and Bun | news.ycombinator.com | 2024-12-23
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i18next-http-middleware
i18next-http-middleware is a middleware to be used with Node.js web frameworks like express or Fastify and also for Deno.
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mini-van
Mini-Van: A minimalist template engine for DOM generation and manipulation, working for both client-side and server-side rendering (SSR)
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Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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).
JavaScript Deno discussion
JavaScript Deno related posts
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Poolifier Web Worker Release 0.5.0
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Benchmark Tool Tatami-Ng Release 0.7.3
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Please Stop Reinventing JSX
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Tatami-Ng Version 0.4.4
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Show HN: BewCloud is a simpler alternative to Nextcloud written in TypeScript
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I have created a small anti-depression script
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Show HN: Instant API ā Build type-safe web APIs with JavaScript
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A note from our sponsor - Stream
getstream.io | 18 Jul 2025
Index
What are some of the best open-source Deno projects in JavaScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | SheetJS js-xlsx | 35,775 |
| 2 | i18next | 8,202 |
| 3 | postgres | 8,128 |
| 4 | microdiff | 3,724 |
| 5 | zip.js | 3,657 |
| 6 | serverless-dns | 2,448 |
| 7 | mitata | 2,000 |
| 8 | single-file-cli | 886 |
| 9 | ImageScript | 662 |
| 10 | aria2.js | 631 |
| 11 | lmdb-js | 566 |
| 12 | zora | 540 |
| 13 | qbin | 515 |
| 14 | i18next-http-backend | 492 |
| 15 | pogo | 482 |
| 16 | svelte-adapter-deno | 355 |
| 17 | libsql-js | 277 |
| 18 | instant.dev | 269 |
| 19 | api | 252 |
| 20 | deno-canvas | 197 |
| 21 | feed-extractor | 176 |
| 22 | i18next-http-middleware | 163 |
| 23 | mini-van | 118 |
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