Free
Gleam
Open SourceProgramming Languages
Type-safe language on the Erlang VM with a friendly compiler.
gleamlanguageerlangbeam
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Programming Languages
Type-safe language on the Erlang VM with a friendly compiler.
Mobile UI Libraries · Mobile Development
Copy-paste React and React Native components — universal, themeable and built on a styled system.
Programming Languages
Official Go language website with docs, packages and playground.
Inspiration & Galleries · Design & Prototyping
A curated gallery of astonishing websites — a tight, high-quality alternative to endless scroll.
Game Engines · Game Development
Free, open-source, community-driven game engine with GDScript and a lightweight, hackable editor.
Typography & Fonts · Design & Prototyping
The free web font library — 1,800+ open-source families with variable fonts and easy embed.
Web Analytics · Monitoring & Observability
Google's free webmaster console — indexing status, search queries, sitemaps and Core Web Vitals data.
AI Coding Assistants · AI for Developers
Block's open-source extensible AI coding agent for the terminal.
ORMs · Backend
The fantastic ORM library for Go.
API Protocols · Backend
Query language and runtime for APIs, with a rich ecosystem.
Pipelines & ETL · Data & Analytics
The data quality standard — declare expectations about your data, validate pipelines and generate data docs.
Learning & Reference · CSS Tools
Learn CSS Grid by watering carrots in an interactive game.
API Protocols · Backend
High-performance, open-source RPC framework over HTTP/2 with protobuf.
Animation · Frontend
Robust JavaScript animation library, now free for everyone.
Passwords & IDs · Security
Online GUID/UUID generator with many formatting options.
Communities · Documentation & Learning
Y Combinator's tech news and discussion community.
Compression & Optimization · Image & Media
Open-source video transcoder with presets for every device.
Color Tools
Curated palettes shown in context on a real website.
Smart Contracts · Web3 & Blockchain
The Ethereum development environment — compile, test, debug and deploy smart contracts with a rich plugin ecosystem.
Passwords & IDs · Security
Manage secrets, certificates and encryption centrally.
Communities · Documentation & Learning
Blogging platform for developers with custom domains.
Programming Languages
Official site for the purely functional programming language.
ORMs · Backend
Instant GraphQL APIs over your databases with permissions built in.
Passwords & IDs · Security
Check if your email or password has appeared in known data breaches.