# Free Tier

Zero-config VPN for developers

Mesh VPN built on WireGuard that creates secure networks between devices with zero configuration. Access dev servers, self-hosted services, and home labs remotely from anywhere. Handles NAT traversal automatically with MagicDNS for easy device naming, making it the simplest way to securely connect distributed development environments and infrastructure.

AI-powered UI builder with code export

TeleportHQ is a collaborative front-end development platform that combines a visual website and UI builder with AI-powered code generation. Designers and developers can visually build pages, generate clean React/Vue/HTML code, and deploy to production in a single environment. Also offers an open-source code generation framework (UIDL) and supports importing from Figma and other design tools.

Open-source LLM gateway with built-in optimization and A/B testing

TensorZero is an open-source LLMOps platform in Rust that unifies an LLM gateway, observability, prompt optimization, and A/B experimentation in a single binary. It routes requests across providers with sub-millisecond P99 latency at 10K+ QPS while capturing structured data for continuous improvement. Supports dynamic in-context learning, fine-tuning workflows, and production feedback loops. Backed by $7.3M seed funding, 11K+ GitHub stars.

AI-powered Stripe-style API documentation

Theneo is a Y Combinator-backed tool that generates high-quality, Stripe-style API documentation in seconds using AI. It transforms OpenAPI specs, Postman collections, or raw code into interactive developer portals with code playgrounds, multi-language SDK examples, and beautiful visual design, helping API-first teams create professional documentation without spending weeks on manual writing.

Task management for busy professionals

Clean and powerful task manager with natural language input, recurring tasks, priority levels, projects, labels, and filters. Integrates with Google Calendar, Slack, and dozens of other productivity tools. Karma system gamifies task completion, while AI-powered task suggestions and smart scheduling help teams and individuals stay organized without friction.

Tool infrastructure for AI agents

Cloud platform providing optimized tools for AI agents with a universal SDK for Python and TypeScript. Works with any LLM provider and enables one-line tool integration. Handles authentication, rate limiting, and caching for external APIs so agent developers can focus on logic rather than plumbing, dramatically reducing the boilerplate needed for production agents.

Incremental parsing system powering code intelligence in AI editors

Tree-sitter is an incremental parsing library with 19,000+ GitHub stars used by Cursor, Neovim, GitHub, and Helix for real-time syntax analysis. It generates concrete syntax trees that update incrementally as code changes, enabling AI code editors to understand program structure for intelligent completions, refactoring, and code navigation.

SQLite for production

Edge-hosted distributed database built on libSQL (an open-source fork of SQLite) designed for low-latency data access worldwide. Features multi-region replication, embedded replicas that sync to your application server for microsecond reads, database branching for development workflows, and point-in-time recovery. Ideal for edge computing, serverless functions, and mobile apps. Compatible with SQLite ecosystem tooling. Generous free tier with 9GB storage and 500 databases.

Editable UI flows from prompts, screenshots and sketches

AI-assisted product-design platform that turns prompts, screenshots and hand-drawn sketches into editable UI flows for non-designers and early product ideation, complementing rather than duplicating developer-first code generators.

Serverless Redis, Kafka, and vector database

Upstash provides serverless Redis, Kafka, and vector database services with per-request pricing and zero operational overhead. Redis supports global replication for edge computing. Kafka offers pay-per-message event streaming. QStash provides HTTP-based message queues for serverless. Features REST APIs alongside native protocols, ideal for edge and serverless deployments. Integrates with Vercel, Cloudflare Workers, and AWS Lambda natively.

Instant serverless TypeScript platform for APIs, crons, and bots

Val Town is a collaborative platform for writing and deploying serverless TypeScript functions instantly from the browser. Create APIs, cron jobs, email handlers, and bots with a single Cmd+S. Features version control, collaboration, and a social coding model where functions can import from other users. YC-backed with 450K+ monthly active users.

Developer-centric cloud cost analysis and optimization

Vantage provides visual cloud cost analysis with automated saving recommendations, integrating with CI/CD to track cost-per-commit for developer-centric FinOps. It offers the most developer-friendly cost reporting tool in the market with clear, actionable reports that engineers actually use, featuring a free tier and competitive Pro plans for growing teams and startups.

TypeScript-first AI agent framework with built-in observability

VoltAgent is an open-source TypeScript AI agent framework with built-in observability, RAG support, memory management, and MCP integration. It provides a structured approach to building production AI agents in the Node.js ecosystem with agent debugging tools, sub-agent orchestration, and tool management. Over 7,000 GitHub stars and 150K+ weekly npm downloads.

Visual web development platform

Professional visual web development platform combining a design tool, CMS, e-commerce, and hosting in one no-code solution. Webflow gives designers direct control over HTML/CSS/JS interactions through a canvas editor with full flexbox/grid, scroll/hover animations, dynamic CMS collections, checkout flows, localization, SEO tools, and clean semantic code output — eliminating designer-developer handoff.

GPU-accelerated terminal with Lua config

GPU-accelerated cross-platform terminal emulator written in Rust with configuration in Lua for maximum flexibility. Supports multiplexing (splits, tabs, workspaces), ligatures, true color, sixel/iTerm2/Kitty image protocols, and SSH multiplexer for remote sessions. Extensive keyboard/mouse customization, dynamic color schemes, and a built-in serial port mode. Works on macOS, Linux, Windows, and FreeBSD. Known for deep customizability. 19K+ GitHub stars.

Open-source GraphQL Federation platform replacing Apollo GraphOS

WunderGraph Cosmo is an open-source GraphQL Federation platform with a schema registry, composition checks, and high-performance Go router. It has overtaken Apollo GraphOS as the dominant federation solution, with 87% of GraphQL Federation adopters using Cosmo versus Apollo's decline from 57% to 28%. Supports Federation v1 and v2, provides CI/CD schema validation, and includes a managed cloud option. Apache 2.0 licensed with active enterprise adoption.

Serverless database with search and AI built-in

Serverless database platform that combines Postgres, full-text search, analytics, and AI features in a single service. Built-in vector search for AI applications, branching for safe schema changes, and a spreadsheet-like UI for data exploration. Designed for developers who want powerful database capabilities without managing separate services for search, analytics, and embeddings.

Powerful shell with programmable completion

Zsh (Z shell) is a powerful Unix shell and command-line interpreter created by Paul Falstad in 1990, now the default shell on macOS and many other systems. Extends Bash with advanced features: improved tab completion, glob patterns, shared command history, right-side prompts, and thousands of plugins via frameworks like Oh My Zsh, Prezto, and Zinit. Standard shell for modern developers.

React components for building AI chat interfaces

assistant-ui is a TypeScript/React component library for building AI chat interfaces with streaming responses, tool rendering, branching conversations, and LLM provider integrations. It supports Vercel AI SDK, LangGraph, and custom backends out of the box. Used by LangChain, Browser Use, and Stack AI. YC W25-backed with 9,000+ GitHub stars and 450K+ monthly npm downloads.

Developer news aggregator

Curated developer news platform that replaces your browser's new tab with a personalized feed of technical articles, releases and discussions drawn from 1,300+ engineering sources. Smart ranking surfaces content that matches the languages and tools you follow, while Squads let specialized communities discuss frameworks, careers and releases in the open. The fastest way to stay current without building and maintaining a private RSS habit.

The fast, feature-rich terminal

GPU-accelerated terminal emulator written in C and Python, focused on performance and features. Supports ligatures, true color, graphics protocol for displaying images/plots inline, tabs, splits, and remote control via IPC. Highly configurable via a plain text config file. Cross-platform on macOS and Linux. Features a kitten framework for writing terminal programs in Python. Known for innovation in terminal graphics. 26K+ GitHub stars and a dedicated power-user community.

Git-like version control for data lakes and object storage

lakeFS is an open-source platform that brings Git-like branching, committing, and merging to data lakes and object storage. It works on top of S3, GCS, Azure Blob, and MinIO, enabling teams to create isolated data branches for experimentation, run CI/CD for data pipelines, and maintain full data lineage. Acquired DVC in 2025, uniting data version control for both small and enterprise-scale workloads.

Kubernetes-native distributed LLM inference stack

llm-d is an open-source Kubernetes-native stack for distributed LLM inference with cache-aware routing and disaggregated serving. It separates prefill and decode stages across different GPU pools for optimal resource utilization, routes requests to nodes with warm KV caches, and integrates with vLLM as the serving engine. Apache-2.0 licensed with 2,900+ GitHub stars.

Fullstack MCP framework connecting any LLM to MCP servers

mcp-use is an open-source framework that enables any LLM to interact with MCP servers through a unified client interface. It bridges the gap between models that lack native MCP support and the growing ecosystem of MCP tools by providing automatic tool discovery, execution management, and multi-server orchestration. Supports both direct LLM connections and agent-based workflows. Over 9,000 GitHub stars.

Hosted MCP server platform

Platform for running MCP servers securely in WebAssembly sandboxes. One-click install for Claude Desktop, VS Code, and other MCP-compatible clients with no Docker required. Simplifies MCP server deployment and management by handling isolation, security, and distribution, making it easy to extend AI assistants with custom tools without infrastructure overhead.

Run local code inside your Kubernetes cluster without deploying

mirrord lets developers run local processes as if they were inside their Kubernetes cluster — intercepting network traffic, environment variables, and file access at the OS level without any deployment or configuration changes. Backed by $12.5M in seed funding with investors including Sentry's co-founder, it claims up to 98% faster iteration cycles and 30% fewer production bugs by eliminating the gap between local and cluster environments.

Polyglot dev tool version manager replacing asdf, nvm, pyenv

mise is a Rust-based polyglot development tool version manager that replaces asdf, nvm, pyenv, rbenv, and similar single-language version managers with one fast CLI. It manages runtime versions for Node.js, Python, Go, Rust, Terraform, and 900+ other tools from a single .mise.toml config file. mise also serves as a task runner with file watching, environment variable management, and monorepo support, making it a complete developer environment orchestrator with over 26,000 GitHub stars.

Secure tunnels to localhost

Globally distributed reverse proxy that exposes local development servers to the internet with a single command. Essential for webhook testing, mobile development, and sharing work-in-progress with clients. Offers custom domains, request inspection, and replay tools, making it indispensable for developers who need public URLs for local services during development.

Terminal AI chatbot — no API key required

Cross-platform terminal GPT client written in Go that provides free access to AI chatbots (KoboldAI, Blackbox AI, OpenAI) without API keys or account creation. Offers interactive multi-turn chat, shell command generation and execution, code generation, and image generation via Pollinations. Distributed as a single binary with no dependencies, making installation trivial on macOS, Linux, and Windows. Ideal for developers who want quick AI in the terminal without signup friction.

Collaborative whiteboard as a React component

Source-available collaborative whiteboard library and app. Ships as a React component that can be embedded in any web application. Supports real-time multiplayer out of the box via tldraw sync. Recently gained AI-powered features for generating diagrams and UI wireframes from natural language, making it popular for design brainstorming and rapid prototyping.

Blazing-fast Python package and project manager in Rust

uv is an extremely fast Python package and project manager written in Rust by Astral. It replaces pip, pip-tools, pipx, poetry, pyenv, and virtualenv with a single binary that delivers 10-100x speedups. uv manages Python versions, resolves dependencies with universal lockfiles, runs scripts with inline metadata, and executes CLI tools via uvx. Over 82,000 GitHub stars and weekly releases make it the fastest-growing Python toolchain.