Curated collection
30 handpicked development tools with curated descriptions — free to browse, no signup. Also available as an interactive tab on the Lumina homepage.
LlamaCoder is an open-source web application developed by Together AI that allows users to generate fully functional web apps and code snippets using simple natural language prompts. It is powered by advanced large language models, specifically the Llama 3.1 405B model by Meta AI, to facilitate fast and easy application development.
Phind AI Chat is a powerful tool designed for developers needing quick solutions. It combines intelligent AI with practical coding expertise to provide effective answers to complex coding problems, assessing different libraries, and finding quick coding solutions—delivering assistance quickly, precisely, and without distraction.
Firebase Studio is a cloud-based, AI-powered development environment for building applications, especially those that use AI, directly within a web browser. It offers a fully-functional, collaborative workspace with integrated tools, AI assistance from Gemini in Firebase, and seamless deployment to Firebase services. Key features include natural language prototyping, code generation, and built-in tools for building, testing, and publishing full-stack apps.
Jules is an AI coding agent from Google designed to help developers by performing tasks like fixing bugs, writing tests, and adding features autonomously. It integrates with GitHub repositories, understands the full project context, and works asynchronously in the background so developers can focus on other things. Key features include code generation, automatic diffs with reasoning, and audio changelogs.
Google Colab, or Colaboratory, is a free cloud-based service provided by Google that allows users to write and execute Python code through their web browser. It is particularly well-suited for machine learning, data analysis, and educational purposes.
NotebookLM is an AI-powered research and note-taking tool from Google that helps users understand and work with their own documents and sources
Dialogflow is a Google-developed natural language understanding platform for creating conversational AI, such as chatbots and voice applications. It translates user text or audio input into structured data, enabling developers to build interactive experiences for websites, mobile apps, and devices. Key features include creating agents to handle conversations, mapping user input to intents, extracting data with entities, and integrating with other services through webhooks.
Google Antigravity is an AI-powered integrated development environment (IDE) that is designed for an "agent-first" approach to software development. Unlike traditional IDEs that primarily offer coding assistance like autocomplete, Antigravity features autonomous AI agents that can plan, execute, and verify complex tasks with minimal human intervention
OpenRouter is a unified API gateway that provides a single interface to access a wide variety of large language models (LLMs) from different providers. It simplifies AI integration for developers by allowing them to use one API key and one integration point to experiment with and deploy models from sources like OpenAI, Anthropic, and Google, while also offering features like smart routing and cost management.
Ollama is a free and open-source tool that lets users run large language models (LLMs) like Llama 3 and Mixtral locally on their computers. It simplifies the process with a command-line interface (CLI), allowing for easy downloading, management, and customization of models without needing cloud services, which enhances data privacy and can save costs. Ollama also provides an API for integration and is designed for developers to build and test AI applications offline.
A modern open-source cross-platform terminal emulator that integrates SSH client with connection manager, serial terminal, and Telnet support. Features include multi-pane nested split panes, Quake-style dropdown mode, session persistence across restarts, Zmodem file transfers over SSH, encrypted SSH key vault, theme and plugin ecosystem, font ligatures, full Unicode support, and built-in support for PowerShell, WSL, Git-Bash, Cygwin, Cmder, CMD, and custom shell profiles. An all-in-one replacement for Windows Terminal, PuTTY, iTerm2, and macOS Terminal.app for developers and system administrators.
SourceTree is a free Git client for Windows and Mac that provides a visual interface for managing Git repositories. It simplifies version control by allowing developers to commit, push, pull, merge, and manage branches through an intuitive GUI, making it easier to work with Git, especially for those who prefer visual tools over command-line operations.
Decompiler.com is a free, web-based tool used to reverse-engineer compiled software files back into human-readable source code. It allows users to inspect the logic of programs without needing to install complex desktop software.
NVM (Node Version Manager) is a tool that allows developers to easily install, manage, and work with multiple Node.js versions. It helps avoid version conflicts between different projects, test compatibility across multiple Node.js versions, and easily upgrade or downgrade Node.js as needed.
AppDevTools is a comprehensive collection of free online developer utilities and tools. Generate and decode Base64, format and validate JSON, encode/decode URL, create and verify JWT tokens, hash strings with MD5/SHA, generate UUIDs, convert timestamps, format SQL, minify CSS/JS/HTML, and more. Essential toolkit for developers, testers, and DevOps engineers for everyday coding tasks.
IT Tools is a comprehensive collection of free online developer utilities and web developer toolset. Includes Base64 encoder/decoder, JSON formatter and validator, URL encoder/decoder, JWT debugger, UUID v4/v7 generator, hash text (MD5, SHA1, SHA256, SHA512), token generator, random password generator, case converter, HTML entities converter, IP subnet calculator, QR code generator, text statistics counter, Bcrypt generator/checker, cron expression parser, SQL prettifier, and more. An essential Swiss-army knife toolkit for programmers, web developers, and IT professionals for everyday coding and debugging tasks.
PyInstaller is a free, open-source tool that freezes (packages) Python applications into standalone executables for Windows, macOS, and Linux. It analyzes your Python script to discover all dependencies — including modules, libraries, and the Python interpreter itself — and bundles them into a single folder or executable file. Users can run the packaged app without installing Python or any modules. Supports Python 3.8–3.15, works with major packages like numpy, PyQt, matplotlib, and wxPython out-of-the-box, and includes features like code signing on macOS, MSVC DLL bundling on Windows, and transparent compression for smaller executables.
Open-source API development ecosystem — a lightweight, fast alternative to Postman for building and testing REST, GraphQL, and WebSocket requests. Works fully in the browser with collections, environments, request history, and optional account sync. Self-hostable for teams that want complete control over their API tooling.
Online regex editor that explains your pattern token-by-token as you type, highlights matches live, and shows a step-by-step match debugger. Supports PCRE, JavaScript, Python, Go, and Java flavors, with quick reference panels and a searchable library of shared community patterns.
Instantly generates a unique temporary URL to inspect and test incoming HTTP requests and webhooks. View headers, payloads, and query strings in real time, respond with custom status codes and bodies, or forward requests elsewhere. Indispensable for debugging integrations with payment providers, CI systems, and third-party APIs.
Official home of JSON Web Tokens with an interactive debugger that decodes and verifies JWTs directly in your browser. Paste a token to inspect its header, payload, and signature, and browse curated libraries for every major language when implementing token-based auth.
Minimal editor that explains cron schedule expressions in plain English as you type. Change any field and watch the human-readable description update instantly, so you never have to guess whether day-of-month comes before hour again.
Beautifully designed JSON viewer that makes exploring large payloads pleasant, with a collapsible tree view, typed previews for dates, colors, links, and images, plus keyboard navigation. Share documents via unique URLs — open source and free.
Polyglot web converter that transforms data between formats — JSON to TypeScript types, YAML, TOML, GraphQL queries, curl commands, JSON Schema, and many more code generators. One interface covering dozens of everyday conversions during API development.
Generates practical .gitignore files for any stack by combining templates like Node, Python, macOS, IntelliJ, Terraform, and hundreds more through a web UI, CLI, or API. Keeps repositories clean of OS junk files, IDE settings, and build artifacts.
Analyze what an npm package costs before adding it: minified and gzipped size, bundle-time impact, and dependency count. Compare similar packages, check size history across versions, and paste a whole package.json to audit every dependency at once.
Turns any GitHub repository into a clean text digest optimized for feeding codebases to LLMs. Paste a repo URL (swap hub for ingest) to get a prompt-friendly summary with file tree and contents, or use the CLI and browser extension. Great for giving coding agents precise project context.
Collection of beautifully designed, accessible React components you copy into your project rather than install as a dependency. Built on Radix primitives and Tailwind CSS with a CLI for adding components, themes, and full page blocks. Now the de facto component system for modern Next.js and Tailwind apps.
Massively maintained list of services with meaningful free tiers for developers — cloud compute, databases, CI/CD, monitoring, email, DNS, SaaS tools, and much more. Organized per category so you can assemble an entire production-grade stack at zero cost.
DBeaver is a free, open-source universal database management tool that supports SQL, NoSQL, and 100+ data sources including MySQL, PostgreSQL, SQLite, MongoDB, Redis, and cloud databases. Features include a powerful SQL editor with syntax highlighting, visual query builder, ER diagram generation, data import/export in CSV/JSON/XML formats, schema comparison and migration, and built-in SSH tunneling. The Community edition covers most use cases, while the Enterprise edition adds NoSQL support, cloud database connectivity, AI-powered chat, and MCP server integration for IDE assistants.