Best Dev & Startup Tools for Building, Scaling, and Shipping Fast

Discover the best tools for startups and developers to build faster, scale smarter, and stay ahead of the curve. From AI coding assistants to productivity boosters, this curated list features the top startup tools and dev platforms used by leading tech teams today. Whether you're shipping your MVP or optimizing for scale, these tools will save you time and help you grow.

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Check out the best ai software tools for devs, gtm, and startups in 2025

Featured Startup Tools

Galaxy's favorite featured tools.

Baselight is a platform to discover, query, and share structured data across public and private sources

Data teams, engineers, etc.

Website / Marketing

SEO software for competitor research, backlink tracking, and keyword planning.

Growth, Content, Founders

Website / Marketing

Simple, privacy-focused, self-hosted web analytics platform.

Product, Growth, Founders

InterviewMaster.ai

AI-based mock interview platform for candidates and hiring teams.

Founders, Hiring Managers

Lightweight, high-performance messaging system for microservices, IoT, and cloud-native apps.

Backend Engineers, Platform Engineers

All Startup Tools

A non exhaustive list of our favorite startup tools used across devtools, GTM, ai, and more.

Automate actions across the web — scraping, outreach, and more.

Growth Hackers, Founders

B2B intent and lead data for outbound sales teams.

Growth, Sales, Founders

Collaborative interface design tool used to prototype, design, and share UIs.

Product Designers, Founders

CRM and marketing platform for startups and scaleups.

Sales, Marketing, Founders

Automation platform to connect apps and automate workflows.

Ops, Growth, Founders

Data validation and settings management using Python type hints.

Backend Engineers, Python Devs

Cold email outreach tool with inbox rotation and personalization.

Growth, Founders

Data enrichment and workflow automation for sales and recruiting.

Growth, Sales Ops, Founders

Turbo / Turborepo

Build system and monorepo toolchain for high-performance JavaScript and TypeScript apps.

Founding Engineers, Infra Engineers

Zero-runtime CSS-in-JS library that compiles to real CSS.

Frontend Engineers, Designers

TanStack Query + TanStack Start

A powerful data-fetching and routing framework for modern frontend apps.

Frontend Engineers, Founding Engineers

Fast frontend build tool that serves your code via native ESM.

Frontend Engineers

Security / Identity

Authentication and authorization as a service.

Backend Engineers, Product Engineers

Framework for developing applications powered by language models. Helps chain LLM calls and connect them to external data.

Founders, ML Engineers

ORM that helps developers easily manage databases using TypeScript and JavaScript.

Founders, Full-stack Engineers

Columnar OLAP database for real-time analytics at scale.

Data Engineers, Backend Engineers

Modern, fast (high-performance), web framework for building APIs with Python 3.7+.

Founders, Backend Engineers

Open-source durable execution system for microservice orchestration and complex workflows.

Platform Engineers, Backend Engineers

Trusted by top engineers on high-velocity teams

Assort Health

Curri

Rubie

Comulate

Ourv0.1-alphais coming in May 2025.

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