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Collection

Open source developer tools worth starring

Every open source listing on the radar, most upvoted first.

Open source is the one part of this directory where you never have to take the teaser on trust: the code is there to read. This list puts every open source listing in one place, most upvoted first, so the question is less whether it exists and more whether the licence, the maintainers and the release cadence suit you.

33 tools

Jev Ultrafast cover

Jev Ultrafast

Beta
Upvotes:1

i. am. speed.

Plausible Analytics cover

Plausible Analytics

Launched
Upvotes:0

Open-source, privacy-friendly web analytics without cookies.

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Hono

Launched
Upvotes:0

A small, fast web framework built on Web Standards that runs on any JavaScript runtime.

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Payload

Launched
Upvotes:0

An open-source headless CMS and application framework built on Next.js.

Biome cover

Biome

Launched
Upvotes:0

A fast formatter and linter for JavaScript, TypeScript, JSON and CSS in one tool.

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Vite

Launched
Upvotes:0

A frontend build tool with a fast dev server and optimised production builds.

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Excalidraw

Launched
Upvotes:0

An open-source virtual whiteboard for sketching hand-drawn-style diagrams.

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Convex

Launched
Upvotes:0

A reactive backend where queries, mutations and schemas are written in TypeScript.

Prisma cover

Prisma

Launched
Upvotes:0

A TypeScript ORM with a declarative schema, migrations and a type-safe query client.

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Copperhead

Launched
Upvotes:0

An open-source AI engineering platform for designing, verifying and shipping circuit boards.

Zoneless cover

Zoneless

Launched
Upvotes:0

An open-source payments platform positioned as an alternative to Stripe Connect.

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Trifle

Launched
Upvotes:0

Open-source time-series metrics that work with your existing database.

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rhun

Launched
Upvotes:0

A small, fast, open-source code editor for Windows, Linux and macOS, written in assembly.

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Extend UI

Launched
Upvotes:0

An open-source React UI kit for document apps: PDF, DOCX, XLSX and CSV viewers and more.

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Woxi

Launched
Upvotes:0

An open-source Wolfram Language interpreter written in Rust, with a browser playground.

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Drop

Launched
Upvotes:0

A rootless Linux sandbox for isolating coding agents and third-party programs.

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Ledge

Launched
Upvotes:0

Markdown notes that run shell commands, code, SQL and AI prompts in place.

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Sesame

Beta
Upvotes:0

An open-source password manager that works without an account, with your vault as a local file.

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Dub

Launched
Upvotes:0

Open-source link management with short links, analytics and conversion tracking.

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Trigger.dev

Launched
Upvotes:0

Open-source background jobs and long-running workflows written in TypeScript.

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Lenis

Launched
Upvotes:0

A lightweight smooth scroll library from the studio darkroom.engineering.

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Motion

Launched
Upvotes:0

An animation library for React, JavaScript and Vue, formerly known as Framer Motion.

PostHog cover

PostHog

Launched
Upvotes:0

Open-source product analytics, session replay, feature flags and experiments in one platform.

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Tailwind CSS

Launched
Upvotes:0

A utility-first CSS framework for building designs directly in your markup.

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shadcn/ui

Launched
Upvotes:0

Accessible React components you copy into your project and own, built on Radix and Tailwind CSS.

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Astro

Launched
Upvotes:0

A web framework for content-driven sites that ships zero JavaScript by default.

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Bun

Launched
Upvotes:0

A fast JavaScript runtime, bundler, test runner and package manager in one binary.

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Turso

Launched
Upvotes:0

SQLite for production: a distributed database built on libSQL with embedded replicas.

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Neon

Launched
Upvotes:0

Serverless Postgres that scales to zero, with instant database branching.

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Zed

Launched
Upvotes:0

A fast, open-source code editor written in Rust, with multiplayer editing and AI built in.

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Supabase

Launched
Upvotes:0

An open-source backend built on Postgres: database, auth, storage, realtime and edge functions.

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Compositor

Launched
Upvotes:0

The Photoshop alternative for Mac

Laya Mlx cover

Laya Mlx

Launched
Upvotes:0

Native MLX runtime for Laya typed decision models — 7–14 ms short decisions on M3 Max. No text generation, PyTorch, or cloud API.

Everything here also sits in the Open Source category, which covers what to look for before you commit to one.