70+ Free Developer Tools & Resources | Curated for 2026

Visitar Herramienta developer.chrome.com

Lighthouse

Run automated audits for performance, accessibility, SEO, and best practices directly in Chrome DevTools or CI pipelines.

Visitar Herramienta www.webpagetest.org

WebPageTest

Advanced performance testing from 40+ global locations with filmstrip view, video comparison, and Core Web Vitals breakdown.

Visitar Herramienta tinypng.com

TinyPNG

Compress PNG and JPEG images by up to 70% without visible quality loss using smart lossy compression algorithms.

Visitar Herramienta bundlephobia.com

Bundlephobia

Check the size cost of adding any npm package to your JavaScript bundle before installing it in your project.

Visitar Herramienta squoosh.app

Squoosh

Advanced image compression app by Google Chrome Labs supporting WebP, AVIF, and MozJPEG with visual comparison.

Seguridad Rendimiento Destacada

Cloudflare

Protect and accelerate your website with CDN, DDoS protection, Web Application Firewall, DNS management, and zero-trust security.

Visitar Herramienta www.cloudflare.com

Seguridad Destacada

SSL Labs

Deep analysis of your SSL/TLS server configuration with detailed grading, certificate chain validation, and protocol testing.

Visitar Herramienta www.ssllabs.com

Visitar Herramienta securityheaders.com

Security Headers

Scan your website's HTTP security headers and get an instant grade with actionable recommendations for each missing header.

Visitar Herramienta observatory.mozilla.org

Mozilla Observatory

Comprehensive security assessment covering HTTP headers, TLS configuration, cookies, and third-party content best practices.

Visitar Herramienta haveibeenpwned.com

Have I Been Pwned

Check if your email or phone number has been compromised in any data breach across 700+ breached sites and 14B+ accounts.

Visitar Herramienta www.zaproxy.org

OWASP ZAP

Open-source web application security scanner for finding vulnerabilities like XSS, SQL injection, and CSRF during development.

Visitar Herramienta csp-evaluator.withgoogle.com

CSP Evaluator

Evaluate and validate your Content Security Policy for weaknesses, bypasses, and misconfigurations using Google's analysis engine.

Seguridad Aprendizaje

Web Security Academy

Learn real-world web security with free interactive labs covering OWASP Top 10, API security, and advanced topics from PortSwigger.

Visitar Herramienta portswigger.net

Desarrollo Destacada

Visual Studio Code

Free, extensible code editor with IntelliSense, integrated debugging, Git support, and 40,000+ extensions for every language.

Visitar Herramienta code.visualstudio.com

Desarrollo IA y ML Destacada

Cursor

AI-first code editor built on VS Code with native AI integration for intelligent code generation, editing, and codebase understanding.

Visitar Herramienta www.cursor.com

Desarrollo Destacada

GitHub

The world's largest code hosting platform with version control, CI/CD, project management, Copilot AI, and 100M+ developers.

Visitar Herramienta github.com

Visitar Herramienta www.postman.com

Postman

Design, test, and document APIs with a collaborative platform supporting REST, GraphQL, WebSocket, and gRPC protocols.

Visitar Herramienta hoppscotch.io

Hoppscotch

Open-source, lightweight API testing tool for REST, GraphQL, and WebSocket APIs directly in your browser with zero setup.

Visitar Herramienta regex101.com

Regex101

Build, test, and debug regular expressions with real-time explanations, match highlighting, and a library of community patterns.

Visitar Herramienta carbon.now.sh

Carbon

Create beautiful screenshots of your code for sharing on social media, documentation, slides, or blog posts with custom themes.

Visitar Herramienta devdocs.io

DevDocs

Fast, offline-capable API documentation browser combining 600+ docs in a clean, searchable interface with instant results.

Visitar Herramienta jsoncrack.com

JSON Crack

Visualize JSON, YAML, and CSV data as interactive graphs to understand complex nested structures and relationships at a glance.

IA y ML Destacada

Hugging Face

The hub for machine learning with 500K+ pre-trained models, datasets, and Spaces for building and deploying AI applications.

Visitar Herramienta huggingface.co

IA y ML Destacada

ChatGPT

OpenAI's conversational AI for coding assistance, content generation, data analysis, and creative problem-solving with GPT-4.

Visitar Herramienta chat.openai.com

IA y ML Destacada

Claude

Anthropic's AI assistant excelling at analysis, coding, math, and long-context conversations with industry-leading safety standards.

Visitar Herramienta claude.ai

Visitar Herramienta colab.research.google.com

Google Colab

Free Jupyter notebook environment with GPU and TPU access for machine learning experiments, data analysis, and education.

Visitar Herramienta www.kaggle.com

Kaggle

Machine learning competition platform with 200K+ free datasets, GPU-powered notebooks, courses, and a vibrant data science community.

Visitar Herramienta ollama.com

Ollama

Run large language models locally on your machine with a simple CLI — supports Llama 3, Mistral, Gemma, CodeLlama, and 100+ models.

Visitar Herramienta replicate.com

Replicate

Run and deploy open-source ML models in the cloud with simple API calls, auto-scaling, and pay-per-second pricing.

Visitar Herramienta www.gradio.app

Gradio

Build and share machine learning demos and web applications with a few lines of Python — deploy to Hugging Face Spaces instantly.

Visitar Herramienta lmstudio.ai

LM Studio

Desktop app to discover, download, and run local LLMs with a chat interface and an OpenAI-compatible local API server.

IA y ML Desarrollo

v0 by Vercel

AI-powered UI generation tool that creates production-ready React components from text descriptions using shadcn/ui and Tailwind.

Visitar Herramienta v0.dev

Monitoreo Destacada

UptimeRobot

Monitor website uptime every 5 minutes with 50 free monitors and instant alerts via email, SMS, Slack, or webhooks.

Visitar Herramienta uptimerobot.com

Monitoreo Destacada

Google Analytics

Industry-standard web analytics for tracking traffic sources, user behavior, conversions, and audience demographics at any scale.

Visitar Herramienta analytics.google.com

Visitar Herramienta sentry.io

Sentry

Application monitoring and error tracking for frontend, backend, and mobile with detailed stack traces, breadcrumbs, and session replay.

Visitar Herramienta plausible.io

Plausible Analytics

Lightweight, privacy-friendly web analytics that is GDPR/CCPA compliant, cookie-free, and under 1KB in script size.

Visitar Herramienta betterstack.com

Better Stack

Beautiful uptime monitoring, incident management, and log aggregation in a developer-friendly platform with Slack and PagerDuty integrations.

Visitar Herramienta www.checklyhq.com

Checkly

Monitor API endpoints and browser interactions with programmable synthetic checks using Playwright and Node.js from 20+ global locations.

Diseño y UI Destacada

Figma

Collaborative interface design tool for UI/UX with prototyping, design systems, Dev Mode, and real-time multiplayer editing.

Visitar Herramienta www.figma.com

Diseño y UI Desarrollo Destacada

Tailwind CSS

Utility-first CSS framework for rapidly building modern UIs with a rich plugin ecosystem, JIT compiler, and excellent DX.

Visitar Herramienta tailwindcss.com

Visitar Herramienta heroicons.com

Heroicons

Beautiful hand-crafted SVG icons by the Tailwind CSS team — 300+ icons available as React and Vue components or raw SVGs.

Visitar Herramienta coolors.co

Coolors

Generate perfect color palettes in seconds with contrast checking, palette exploration, color blindness simulation, and export to any format.

Visitar Herramienta unsplash.com

Unsplash

Access 4M+ free high-resolution photos from 300K+ photographers for commercial and personal use — no attribution required.

Visitar Herramienta excalidraw.com

Excalidraw

Virtual whiteboard for sketching diagrams with a hand-drawn aesthetic, real-time collaboration, and easy embedding in docs.

Visitar Herramienta lucide.dev

Lucide Icons

Beautiful and consistent open-source icon library with 1,500+ icons available as SVG, React, Vue, Svelte, and more.

Visitar Herramienta www.realtimecolors.com

Realtime Colors

Visualize your color palette on a real website mockup instantly — see how your font, background, and accent choices feel in context.

SEO y Marketing Destacada

Google Search Console

Monitor your site's search performance, fix indexing issues, submit sitemaps, and understand how Google discovers your pages.

Visitar Herramienta search.google.com

SEO y Marketing Destacada

Ahrefs Webmaster Tools

Free site audit scanning 100+ SEO issues, backlink profile analysis, and organic keyword tracking for website owners.

Visitar Herramienta ahrefs.com

Visitar Herramienta www.screamingfrog.co.uk

Screaming Frog SEO Spider

Desktop SEO crawler for auditing technical SEO — find broken links, analyze metadata, audit redirects, and generate XML sitemaps.

Visitar Herramienta validator.schema.org

Schema Markup Validator

Test and validate your structured data markup to ensure rich result eligibility and correct implementation in Google Search.

Visitar Herramienta answerthepublic.com

AnswerThePublic

Discover what questions real people ask about any topic — fuel your content strategy with search-driven keyword and question research.

Visitar Herramienta trends.google.com

Google Trends

Explore trending search queries, compare keyword popularity over time, and discover seasonal patterns across regions and categories.

Visitar Herramienta neilpatel.com

Ubersuggest

Keyword research tool with search volume, SEO difficulty scores, content ideas, backlink data, and competitor domain analysis.

DevOps y Cloud Destacada

Docker

Build, ship, and run applications in containers for consistent development, testing, and production environments everywhere.

Visitar Herramienta www.docker.com

DevOps y Cloud Destacada

Vercel

Deploy frontend applications with zero configuration, edge functions, automatic HTTPS, preview deployments, and global CDN.

Visitar Herramienta vercel.com

Visitar Herramienta github.com

GitHub Actions

Automate CI/CD workflows, testing, linting, and deployment directly from your GitHub repository with 15,000+ community actions.

Visitar Herramienta www.digitalocean.com

DigitalOcean

Simple, affordable cloud infrastructure with droplets, managed databases, Kubernetes, serverless functions, and app platform.

Visitar Herramienta coolify.io

Coolify

Self-hostable, open-source alternative to Heroku and Netlify with Docker-based deployments, databases, and SSL on your own server.

Visitar Herramienta railway.app

Railway

Deploy applications, databases, and services instantly with automatic builds from Git, horizontal scaling, and a generous free tier.

Visitar Herramienta forge.laravel.com

Laravel Forge

Provision and manage optimized PHP servers on AWS, DigitalOcean, or any VPS with automated deployments, SSL, and queue workers.

Productividad Destacada

Notion

All-in-one workspace combining notes, docs, wikis, project boards, databases, and AI writing in a flexible, block-based interface.

Visitar Herramienta www.notion.so

Productividad Destacada

Linear

Streamlined issue tracking and project management for high-performance teams with keyboard-first design and GitHub integration.

Visitar Herramienta linear.app

Visitar Herramienta www.raycast.com

Raycast

Blazingly fast Mac launcher replacing Spotlight with extensions for GitHub, Jira, Figma, clipboard history, and custom scripts.

Visitar Herramienta obsidian.md

Obsidian

Private knowledge base using local Markdown files with bidirectional linking, graph visualization, and 1,000+ community plugins.

Visitar Herramienta cal.com

Cal.com

Open-source scheduling platform for booking meetings with calendar sync, custom availability rules, team scheduling, and API access.

Visitar Herramienta www.warp.dev

Warp

Modern terminal reimagined with AI command search, collaborative workflows, IDE-like editing, and intelligent auto-completions.

Visitar Herramienta www.loom.com

Loom

Record and share quick video messages for async communication with automatic transcription, viewer insights, and team libraries.

Aprendizaje Destacada

Laracasts

Premier video tutorial platform for Laravel, PHP, Vue.js, and modern web development with expert instruction and hands-on exercises.

Visitar Herramienta laracasts.com

Aprendizaje Destacada

freeCodeCamp

Free, interactive coding curriculum with 12 certifications covering web development, data science, machine learning, and more.

Visitar Herramienta www.freecodecamp.org

Visitar Herramienta dev.to

Dev.to

Inclusive developer community for sharing articles, tutorials, and discussions about programming, career growth, and technology.

Visitar Herramienta laravel-news.com

Laravel News

Official community portal for Laravel ecosystem news, package releases, tutorials, job listings, and conference updates.

Visitar Herramienta stackoverflow.com

Stack Overflow

The world's largest Q&A community for programmers with 24M+ questions and answers spanning every technology and framework.