# free-tier

Fast, native terminal emulator

GPU-accelerated terminal emulator written in Zig by Mitchell Hashimoto (HashiCorp co-founder). Native UI rendering on macOS and Linux. Supports ligatures, true color, Kitty graphics protocol, and splits/tabs. Configurable via a simple key-value file with sensible defaults. Open-source with 20K+ GitHub stars and a focus on correctness, speed, and minimal resource usage. Growing as a modern alternative to iTerm2, Alacritty, and WezTerm.

Wafer-scale inference at thousands of tokens per second

Cerebras Inference serves open-weight LLMs like Llama, Qwen, and GPT-OSS on wafer-scale CS-3 chips through an OpenAI-compatible API, benchmarking between 1,800 and 2,600 output tokens per second on Llama 3.1 8B and several hundred on 70B models. A free tier offers one million tokens per day with no credit card, while paid pay-per-token pricing starts at $0.04 per million tokens for the smaller Llama models.

Builder.io visual canvas with Figma-to-code and code-to-Figma sync

Fusion by Builder.io is a visual development canvas that provides bidirectional sync between Figma designs and production code. Designers edit in Figma while developers work in code, and changes propagate in both directions. Supports React, Vue, Svelte, Angular, and Qwik output with a visual editor for non-developers to make content and layout changes without touching code.

All-in-one browser DevTools extension for web developers

Hoverify is a browser extension that consolidates essential web development tools into a single overlay interface. It provides element inspection with CSS details, responsive design testing, accessibility checking, color picking, screenshot capture, and asset downloading. Activated by hovering over any webpage element, it provides instant development context without opening browser DevTools.

Graph-relational database with EdgeQL query language, formerly EdgeDB

Gel (formerly EdgeDB) is a graph-relational database that combines the relational model with graph database traversal capabilities through its EdgeQL query language. Built on PostgreSQL, it eliminates the object-relational impedance mismatch with a type system that maps directly to application data models. Features built-in migrations, authentication, and an interactive web UI.

CNCF Sandbox chaos engineering framework for Kubernetes resilience

Krkn is a CNCF Sandbox chaos engineering tool that tests Kubernetes cluster resilience by injecting controlled failures. It simulates pod kills, node failures, network partitions, CPU/memory pressure, and zone outages. Krkn-AI adds AI-powered scenario generation that suggests chaos experiments based on cluster topology. Supports CI/CD integration for automated resilience testing in deployment pipelines.

Drag-and-drop authentication flows with visual workflow builder

Descope is an authentication platform featuring a visual drag-and-drop flow builder for designing login and signup experiences. It supports passwordless authentication, social login, MFA, SAML SSO, and passkeys. Raised $53M Series A to build no-code identity workflows. SDKs for web, mobile, and backend with pre-built UI components that reduce auth implementation to minutes.

Auth platform combining authentication, feature flags, and billing

Kinde is a developer-focused authentication platform that bundles user management, feature flags, and billing management into a single service. It provides social login, passwordless auth, MFA, RBAC, and organization management out of the box. SDKs available for Next.js, React, Node, Python, and other frameworks. Free tier supports up to 10,500 monthly active users.

Free MIT-licensed drop-in replacement for LocalStack

MiniStack is a free, MIT-licensed drop-in replacement for LocalStack that emulates 33 AWS services using real infrastructure — actual Postgres for RDS, real Redis for ElastiCache, real Docker for ECS — rather than faking API responses. Born from LocalStack's surprise paywall in March 2026, it starts in 2 seconds, idles at 30MB RAM versus LocalStack's ~500MB, and runs real services for accurate local AWS development.

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.

Auto-generates interactive ER diagrams from database schemas

Liam ERD automatically generates beautiful, interactive entity-relationship diagrams from existing database schemas. It supports Rails schema.rb, PostgreSQL, Prisma, and raw SQL — with zero configuration required. A web version handles public repos instantly, while the CLI processes private repositories with CI/CD integration for keeping documentation in sync.

Scalable browser infrastructure for AI agents

Hyperbrowser is a cloud browser platform for AI agents and automation, providing managed Chrome sessions through Playwright, Puppeteer, CDP, REST, Python, and Node.js SDKs. Docs cover Stagehand, stealth/proxy options, ad blocking, recordings, scraping APIs, and credit pricing without promising universal CAPTCHA or anti-bot bypass.

Open data platform wrapping any SQL database with instant APIs

Directus is a database-first open data platform that wraps any existing SQL database with instant REST and GraphQL APIs, a no-code admin dashboard, and built-in authentication. Unlike traditional headless CMS platforms that impose their own data model, Directus introspects your existing schema and works on top of it — supporting PostgreSQL, MySQL, SQLite, MS SQL, MariaDB, and CockroachDB out of the box.

Autonomous AI pentester for web apps and APIs

Shannon is an autonomous white-box AI pentesting tool for web applications and APIs. It analyzes authorized source code, identifies attack vectors, attempts proof-by-exploitation, and produces remediation-ready reports. Shannon Lite is AGPL-3.0 for local use, while Shannon Pro is the commercial Keygraph platform for continuous security testing.

Memory engine and context API for AI assistants

Supermemory is a memory and context platform for AI assistants and agents. It ranks #1 on LongMemEval, LoCoMo, and ConvoMem, supports MCP for Claude/Cursor-style clients, provides plugins for developer tools, and combines memory extraction, user profiles, hybrid search, connectors, and RAG in one API.

AI coding agent for embedded systems and firmware engineering

Embedder is a specialized AI coding agent for firmware and embedded systems development. It supports 400+ MCU variants including STM32 and ESP32, parses hardware datasheets to understand register maps and pin configurations, and verifies generated code by interacting with physical boards via serial console. YC S25 participant currently in beta.

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.

Most popular VS Code Git extension with 30M+ installs

GitLens is the most-installed Git extension for VS Code with over 30 million installs. It supercharges Git inside the editor with inline blame annotations, rich commit history visualization, file and line history, AI-powered commit summaries, and interactive rebase tools. Pro features include GitKraken-powered team analytics and visual diff tools. Maintained by GitKraken.

Build and deploy AI agents on Cloudflare's edge network

Cloudflare Agents is an open-source SDK for building and deploying AI agents that run on Cloudflare's global edge network. It provides durable state, scheduled tasks, WebSocket communication, and browser rendering capabilities within Workers. Agents persist across requests using Durable Objects and can orchestrate multi-step workflows with built-in MCP server support. Over 7,000 GitHub stars.

Google's enterprise AI coding assistant powered by Gemini

Gemini Code Assist is Google's business AI coding assistant for VS Code, JetBrains IDEs, Cloud Workstations, GitHub, and Google Cloud workflows. Standard and Enterprise plans include Gemini 3, a 1M-token context window, Gemini CLI access, preview agent mode, code completion, chat, transformation, PR review, and enterprise governance controls for GCP-heavy teams.

LLM-powered web scraping with graph-based extraction pipelines

ScrapeGraphAI is a Python library that uses LLMs and graph-based logic to build automated, self-healing web scraping pipelines. Developers describe desired data in natural language and ScrapeGraphAI constructs a processing graph that extracts structured information from any website. It supports multiple LLM providers, achieves 96%+ accuracy on semantic extraction benchmarks, and adapts to layout changes automatically. Over 20,000 GitHub stars.

Industry-standard incident management and on-call alerting platform

PagerDuty is an enterprise incident management platform for on-call scheduling, alert routing, escalation policies, and incident response orchestration. It integrates with 750+ monitoring, ticketing, cloud, and collaboration tools, including Datadog, Slack, Jira, AWS, and Microsoft Teams. Current pricing lists a Free tier for up to 5 users, Professional from $21/user/mo annually ($25 monthly), Business from $41/user/mo annually ($49 monthly), and Enterprise custom.

Open-source codeless test automation with NLP-based test creation

Testsigma is an open-source codeless test automation platform where tests are written in plain English using NLP-based interpretation. It supports web, mobile, and API testing with self-healing test maintenance that adapts to UI changes automatically. Apache 2.0 licensed Community Edition is free with full functionality. Cloud edition adds parallel execution, integrations, and team management. Active development with regular releases through 2026.

Terraform pull request automation via GitHub/GitLab comments

Atlantis is a self-hosted Terraform pull request automation tool that runs plan and apply operations triggered by GitHub, GitLab, Bitbucket, or Azure DevOps comments. Type 'atlantis plan' on a PR to see infrastructure changes, then 'atlantis apply' to deploy. 9,100+ GitHub stars, Apache 2.0 licensed. Widely adopted as the standard for GitOps-style Terraform workflows, with locking to prevent concurrent modifications to the same resources.