Open-source projects categorized as Deno

Top 23 Deno Open-Source Projects

  • deno

    A modern runtime for JavaScript and TypeScript.

  • Project mention: Bun - The One Tool for All Your JavaScript/Typescript Project's Needs? | | 2024-04-02

    NodeJS is the dominant Javascript server runtime environment for Javascript and Typescript (sort of) projects. But over the years, we have seen several attempts to build alternative runtime environments such as Deno and Bun, today’s subject, among others.

  • supabase

    The open source Firebase alternative.

  • Project mention: Creating a PokΓ©mon guessing game using Supabase, Drizzle, and Next.js in just 2 hours! | | 2024-04-23

    Setting up Supabase Create a new Supabase project, and get the connection string for the database from settings > database.

  • SurveyJS

    Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

    SurveyJS logo
  • SheetJS js-xlsx

    πŸ“— SheetJS Spreadsheet Data Toolkit -- New home

  • Project mention: how to work with .xlsx files? | /r/node | 2023-06-28

    ExcelJS and XLSX (SheetJS) are great libraries to work with XLSX files. The former I've found a bit easier to work with but less efficient in general.

  • hono

    Web Framework built on Web Standards

  • Project mention: Deploy Node.js applications on a VPS using Coolify | | 2024-04-20

    Hono - Ultrafast web framework for the Edges

  • pretty-ts-errors

    πŸ”΅ Make TypeScript errors prettier and human-readable in VSCode πŸŽ€

  • Project mention: What is JSDoc and why you may not need typescript for your next project? | | 2024-01-22

    Besides the features TypeScript itself proposed, the most important thing it brought to the community was the ability to create cool features around this compiler that enhance the developer experience and productivity. Tools like tsserver, pretty ts errors, and many others are actively improving the ecosystem for both JavaScript and TypeScript writers.

  • fresh

    The next-gen web framework.

  • Project mention: What's Your Favorite Tech Stack and Why? | | 2024-04-02

    Deno: Deno with one of it's frameworks (like Fresh

  • kysely

    A type-safe typescript SQL query builder

  • Project mention: Show HN: Tsynamo – Type-friendly DynamoDB query builder for TypeScript | | 2024-04-10

    Hello HN! I was recently introduced to Kysely (, a type-safe Typescript SQL query builder, and instantly fell in love! I got inspired and wanted to make something similar for AWS DynamoDB.

    Thus, I developed Tsynamo! Instead of calling it type-safe, I decided to go with type-friendly, because the library is still in an early stage, and is not 100% type-safe.

    Under the hood, Tsynamo compiles the built queries into AWS SDK v3 commands. I feel that Tsynamo simplifies the AWS SDK API quite a lot since the developer doesn't have to mess around with condition/filter expressions or attribute names/values themselves, and as a bonus gets autocompletion for building the queries!

    There's also a playground to test it out in your browser: It might not have the most up-to-date API of the library in use yet, but you can get the library's main idea from there.

    Since the project is still in its early stages, it doesn't yet have 100% support for all DynamoDB features, like querying indexes. The next steps will be increasing the support coverage and perhaps adding automatic type generation as inspired by kysely-codegen (

    Would love to get some feedback, thanks in advance!

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

    InfluxDB logo
  • graphql-yoga

    🧘 Rewrite of a fully-featured GraphQL Server with focus on easy setup, performance & great developer experience. The core of Yoga implements WHATWG Fetch API and can run/deploy on any JS environment.

  • i18next

    i18next: learn once - translate everywhere

  • Project mention: Translating zod errors with next-intl | | 2024-03-05

    When starting a new project with Next.js these days, next-intl and zod are my go to libraries for internationalization and schema validation, respectively. Of course, when using zod for client-facing validations I would like to translate potential error messages. The package zod-i18n can be used to achieve this for i18next, a popular alternative internationalization library. This means that by using this library as starting point one can quickly achieve zod translation with next-intl.

  • postgres

    Postgres.js - The Fastest full featured PostgreSQL client for Node.js, Deno, Bun and CloudFlare (by porsager)

  • Project mention: Neon Is Generally Available: Serverless Postgres | | 2024-04-15

    I want to use this as a chance to bring attention to a GitHub issue that I think would help reduce friction for Neon:

    If the Neon driver were to allow us to easily pass in a localhost connection, the development and test experience would be easier. Perhaps Neon could swap to something like this internally:

    Having run a local dev environment connected to Neon and tests connected to Neon got in our way of adoption. We'd prefer to develop and run tests against a regular Postgres localhost database.

    To the PMs of Neon, put yourself in the shoes of a new developer thinking of giving Neon a try. What changes will I have to make to my code and my development workflow?

  • aleph.js

    The Full-stack Framework in Deno.

  • Project mention: I don't get fresh. why can't I use react without commiting to a server side framework? | /r/Deno | 2023-07-01

    Check aleph if you want to use react with deno. But I'd suggest sticking with Node.js and Vite as you'll get less surprises.

  • oak

    A middleware framework for handling HTTP with Deno, Node, Bun and Cloudflare Workers 🐿️ πŸ¦•

  • Project mention: Organizing large amounts of functions | /r/Supabase | 2023-12-08

    Are you using Oak? If not you should check it out

  • jose

    JWA, JWS, JWE, JWT, JWK, JWKS for Node.js, Browser, Cloudflare Workers, Deno, Bun, and other Web-interoperable runtimes.

  • Project mention: πŸš€ Top 12 Open Source Auth Projects Every Developer Should Know πŸ”‘ | | 2023-12-06

    JWT - jose

  • github-profile-trophy

    πŸ† Add dynamically generated GitHub Stat Trophies on your readme

  • Project mention: GitHub Profile Achievements | | 2023-07-11
  • awesome-deno

    Curated list of awesome things related to Deno

  • microdiff

    A fast, zero dependency object and array comparison library. Significantly faster than most other deep comparison libraries and has full TypeScript support.

  • zip.js

    JavaScript library to zip and unzip files supporting multi-core compression, compression streams, zip64, split files and encryption.

  • Project mention: Pigz: Parallel gzip for modern multi-processor, multi-core machines | | 2023-05-12

    Similarly, if people are interested, I have coded the possibility to compress zip files on several cores in zip.js [1]. The approach is simpler as it consists of compressing the entries in parallel. It still offers a significant performance gain though when compressing multiple files in a zip file, which is often the nominal case.


  • ultra

    Zero-Legacy Deno/React Suspense SSR Framework

  • Project mention: I don't get fresh. why can't I use react without commiting to a server side framework? | /r/Deno | 2023-07-01

    Another option is ultra.


    A fast, smart, & global CDN for modern(es2015+) web development.

  • Project mention: Building a self-creating website with Supabase and AI | | 2024-04-23

    /* eslint-disable @typescript-eslint/ban-ts-comment */ // Follow this setup guide to integrate the Deno language server with your editor: // // This enables autocomplete, go to definition, etc. import { corsHeaders } from "../_shared/cors.ts"; import { createClient } from "[email protected]"; import randomSample from "[email protected]"; import Replicate from "[email protected]"; import { base64 } from ""; const supabaseClient = createClient( Deno.env.get("SUPABASE_URL") ?? "", Deno.env.get("SUPABASE_SERVICE_ROLE_KEY") ?? "" ); const replicate = new Replicate({ auth: Deno.env.get("REPLICATE_API_TOKEN") ?? "", }); // @ts-expect-error Deno.serve(async (req) => { if (req.method === "OPTIONS") { return new Response("ok", { headers: corsHeaders }); } const { record } = await req.json(); const thought_id =; if (!thought_id) { return new Response("Missing thought_id", { status: 400, headers: { "Content-Type": "application/json", ...corsHeaders }, }); } const allObjectIDsResponse = await fetch( "", { method: "GET", headers: { "Content-Type": "application/json", Accept: "application/json", }, } ); const { objectIDs } = await allObjectIDsResponse.json(); const listOfArtworks = []; const addedIDs: number[] = []; while (listOfArtworks.length < 80) { const randomObjectID = randomSample(objectIDs, { size: 1 })[0]; if (addedIDs.includes(randomObjectID)) continue; const res = await fetch( `${randomObjectID}`, { method: "GET", headers: { "Content-Type": "application/json", Accept: "application/json", }, } ); const artwork = await res.json(); if (!artwork.primaryImageSmall) continue; addedIDs.push(artwork.objectID); listOfArtworks.push({ image_url: artwork.primaryImageSmall, artist_name: artwork.artistDisplayName, title: artwork.title, is_main: listOfArtworks.length === 0, is_variant: false, thought_id, }); } const mainImage = listOfArtworks[0]; const output = await "yorickvp/llava-13b:b5f6212d032508382d61ff00469ddda3e32fd8a0e75dc39d8a4191bb742157fb", { input: { image: mainImage.image_url, top_p: 1, prompt: "Describe this painting by " + mainImage.artist_name, max_tokens: 1024, temperature: 0.2, }, } ); const file = await fetch(mainImage.image_url).then((res) => res.blob()); const promises = []; for (let i = 0; i < 8; i++) { const body = new FormData(); body.append( "prompt", output.join("") + `, a painting by ${mainImage.artist_name}` ); body.append("output_format", "jpeg"); body.append("mode", "image-to-image"); body.append("image", file); body.append("strength", clamp(Math.random(), 0.4, 0.7)); const request = fetch( `${Deno.env.get( "STABLE_DIFFUSION_HOST" )}/v2beta/stable-image/generate/sd3`, { method: "POST", headers: { Accept: "application/json", Authorization: `Bearer ${Deno.env.get("STABLE_DIFFUSION_API_KEY")}`, }, body, } ); promises.push(request); } const results = await Promise.all(promises); const variants = await Promise.all( => res.json())); await supabaseClient.from("artworks").insert(listOfArtworks); for (let i = 0; i < variants.length; i++) { const variant = variants[i]; const randomId = Math.random(); await .from("variants") .upload( `${thought_id}/${randomId}.jpeg`, base64.toArrayBuffer(variant.image), { contentType: "image/jpeg", } ); await supabaseClient.from("artworks").insert({ image_url: `${Deno.env.get( "SUPABASE_URL" )}/storage/v1/object/public/variants/${thought_id}/${randomId}.jpeg`, artist_name: mainImage.artist_name, is_main: false, is_variant: true, thought_id, }); } await supabaseClient .from("thoughts") .update({ generating: false }) .eq("id", thought_id); return new Response(JSON.stringify({ main: mainImage }), { headers: { "Content-Type": "application/json", ...corsHeaders }, }); }); function clamp(value: number, min: number, max: number) { return Math.min(Math.max(value, min), max); }

  • moon

    A task runner and repo management tool for the web ecosystem, written in Rust.

  • cac

    Simple yet powerful framework for building command-line apps. (by cacjs)

  • denodb

    MySQL, SQLite, MariaDB, PostgreSQL and MongoDB ORM for Deno

  • Project mention: denodb VS denodata - a user suggested alternative | | 2023-11-29
  • croner

    Trigger functions or evaluate cron expressions in JavaScript or TypeScript. No dependencies. Most features. Node. Deno. Bun. Browser.

  • Project mention: Croner – Cron for JavaScript and TypeScript | | 2023-08-30
  • WorkOS

    The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

    WorkOS logo
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).

Deno related posts


What are some of the best open-source Deno projects? This list will help you:

Project Stars
1 deno 92,841
2 supabase 65,456
3 SheetJS js-xlsx 34,449
4 hono 14,905
5 pretty-ts-errors 12,226
6 fresh 11,849
7 kysely 9,240
8 graphql-yoga 8,009
9 i18next 7,382
10 postgres 6,678
11 aleph.js 5,248
12 oak 4,994
13 jose 4,735
14 github-profile-trophy 4,631
15 awesome-deno 4,133
16 microdiff 3,467
17 zip.js 3,273
18 ultra 2,986
19 2,808
20 moon 2,584
21 cac 2,545
22 denodb 1,905
23 croner 1,862

The modern identity platform for B2B SaaS
The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.