The best tools for startup founders

AI-powered research engine that cites sources. Perfect for market research and competitive analysis.

Anthropic's AI assistant. Best-in-class for long-form analysis, brainstorming, and writing business plans.

OpenAI's conversational AI. Great for quick idea validation, customer persona generation, and copywriting.

xAI's model with real-time X/Twitter data access. Useful for tracking trending topics and sentiment.

Google's AI with deep web integration. Strong for market sizing and trend analysis with live data.

AI-first code editor built on VS Code. Autocomplete, chat, and multi-file edits powered by frontier models.

Anthropic's agentic coding tool. Runs in your terminal, edits files, runs tests, and commits code autonomously.

AI full-stack app builder. Describe what you want, get a deployable app with frontend, backend, and database.

Generate React UI components from text prompts. Ships production-ready code with Tailwind and shadcn/ui.

AI-powered app builder that generates full-stack apps from natural language. Connects to Supabase for instant backends.

Browser-based IDE with AI coding assistant. Build, test, and deploy without leaving the browser.

AI pair programmer that suggests code inline. Integrates deeply with VS Code, JetBrains, and Neovim.

AI-powered startup idea reports with deep evidence, scoring, and market analysis. Get validated ideas daily.

See search interest over time for any keyword. Essential for validating demand signals before building.

Spots rapidly growing trends before they peak. Find underserved niches with rising demand signals.

Audience research tool. Find where your target customers hang out, what they read, and who they follow.

Competitive traffic analysis. See any website's traffic, sources, and audience demographics for free.

Open-source Firebase alternative. Postgres database, auth, storage, and real-time subscriptions out of the box.

Google's app development platform. Auth, Firestore, hosting, and cloud functions with generous free tier.

Most powerful no-code app builder. Build complex web apps with databases, workflows, and APIs - no code needed.

Build internal tools fast. Drag-and-drop components that connect to any database or API.

Spreadsheet-database hybrid. Build lightweight CRMs, project trackers, and content calendars without code.

Design and publish stunning landing pages. Built-in CMS, animations, and SEO - the go-to for indie founders.

Simple one-page sites for $19/year. Perfect for MVPs, waitlists, and link-in-bio pages.

Notion-like website builder. Build beautiful landing pages with a block-based editor in minutes.

Professional website builder with designer-level control. CMS, animations, and hosting included.

Collaborative design tool. Create UI mockups, prototypes, and design systems. Free for up to 3 projects.

Design anything - social posts, pitch decks, logos. Massive template library with AI features.

AI image generation. Create product mockups, hero images, and brand assets from text descriptions.

Virtual whiteboard for sketching architecture diagrams, user flows, and wireframes. Free and open source.

Modern email API for developers. Beautiful emails with React components. 3,000 free emails/month.

Email platform built for SaaS. Transactional emails, drip campaigns, and newsletters with a clean UI.

Newsletter platform with built-in growth tools. Referral programs, recommendations, and monetization baked in.

Email marketing for creators. Visual automations, landing pages, and commerce features. Free up to 10K subs.

Industry-standard SEO toolset. Keyword research, backlink analysis, and content gap identification.

All-in-one marketing toolkit. SEO, content marketing, competitor analysis, and PPC research.

Neil Patel's SEO tool. Keyword ideas, content suggestions, and site audits with a generous free tier.

Write and schedule Twitter/X threads. AI writing assistant, analytics, and cross-posting to LinkedIn.

Open-source product analytics. Event tracking, session replays, feature flags, and A/B testing. Generous free tier.

Privacy-friendly web analytics. Lightweight, GDPR-compliant alternative to Google Analytics. No cookies.

Heatmaps, session recordings, and user surveys. See exactly how visitors interact with your site.

Advanced product analytics. Funnels, cohort analysis, and retention tracking for data-driven founders.

The payments standard for internet businesses. Subscriptions, invoicing, and checkout with best-in-class DX.

Merchant of record for digital products. Handles taxes, payments, and compliance globally - you just build.

Revenue delivery platform. Handles billing, taxes, and compliance as your merchant of record.

Deploy frontend apps instantly. Git push to deploy with automatic previews, edge functions, and analytics.

Deploy any backend in seconds. Databases, cron jobs, and services with automatic scaling. $5/mo free credit.

CDN, DNS, Workers, R2 storage, and DDoS protection. Essential infrastructure with an incredibly generous free tier.

Cloud hosting for web apps, APIs, and databases. Automatic deploys from Git with free tier for static sites.

Serverless Postgres. Branches your database like Git branches. Free tier with auto-suspend to save costs.

Connect 6,000+ apps with automated workflows. Move data between tools without writing code.

Visual automation platform (formerly Integromat). Build complex workflows with branching logic and error handling.

Open-source workflow automation. Self-hostable with 400+ integrations. Code when you want, no-code when you don't.

All-in-one customer messaging. Live chat, chatbot, knowledge base, and shared inbox with a solid free tier.

Build a community around your product. Free voice/text channels, bots, and roles for user engagement.

Collect and prioritize feature requests. Let users vote on ideas and see your public roadmap.

Incorporate your startup in Delaware in days. Bank account, tax ID, and legal templates for $500 one-time.

Banking built for startups. Free business checking, treasury, and venture debt with modern API access.

Legal paperwork for startups. Incorporation, fundraising docs, and contractor agreements used by YC companies.