Best Free Developer tools AI tools

Gemini CLI is a terminal-based AI agent that lever...

Gemini CLI is a terminal-based AI agent that leverages Gemini's multimodal capabilities to automate coding tasks, manage codebases, and streamline GitHub operations. It enables developers to generate content, handle version control, and boost productivity through high-level tool integrations.

Google Antigravity is an IDE for developers featur...

Google Antigravity is an IDE for developers featuring tab autocompletion, natural language code commands, and configurable agents that monitor tasks. It offers cross-surface synchronization and a unified mission control view for managing multiple agents.

LM Studio runs open‑source large language models l...

LM Studio runs open‑source large language models locally on Mac (M‑series), Windows, and Linux, enabling private, offline inference. It offers command‑line and headless deployment, server‑side API, SDKs, a model hub, and LM Link for remote model access.

canirun.ai is a searchable database mapping AI mod...

canirun.ai is a searchable database mapping AI models to compatible hardware, listing CPUs/GPUs (including Apple M-series and NVIDIA cards), model requirements, VRAM/memory needs, filters and comparisons to plan local inference, fine-tuning, or deployment.

Apx Machine Learning is a platform for creating an...

Apx Machine Learning is a platform for creating and deploying machine learning models, featuring AutoML for automating model processes and free courses on key data science topics. It also plans to introduce LangML for custom language model deployment.

Portkey is an LLMOps platform offering a unified A...

Portkey is an LLMOps platform offering a unified API and model catalog with observability, guardrails, RBAC, audit logs, prompt management, caching, routing and PII redaction to simplify multi-model integration, governance, monitoring, and cost optimization.

Sleek generates mobile app mockups from text promp...

Sleek generates mobile app mockups from text prompts or images, offering templates, style presets, in-app editing, and modular responsive components. Export clean layouts to Figma or production-ready code for rapid prototyping and developer handoff.

testRigor is an AI‑driven, no‑code test automation...

testRigor is an AI‑driven, no‑code test automation platform that turns plain‑English instructions into end‑to‑end tests for web, mobile, desktop, API, and mainframe. It records real‑user interactions, supports cross‑browser validation, CI/CD integration, and self‑healing for low‑maintenance, reliable testing.

Cognee is an open-source agent memory platform tha...

Cognee is an open-source agent memory platform that captures context, builds graph and vector memory, and enables persistent, searchable recall across sessions via an SDK, memory API, connectors (S3, Slack, Notion, Drive) and governance controls.

Codexbar integrates with Cursor to centralize sess...

Codexbar integrates with Cursor to centralize session-based authentication and API usage reporting, surfacing per-model and billing-window metrics, provider cost estimates, account selection, storage footprint, and CLI/manual login options for developer, DevOps, and security teams.

FiftyOne is a visual AI platform that centralizes ...

FiftyOne is a visual AI platform that centralizes data curation, annotation, and model evaluation across images, video, point clouds, and metadata. It offers interactive slicing, automatic labeling with confidence scoring, role‑based access, versioning, and open‑source integration.

Lemonade is a self-hosted local AI platform offeri...

Lemonade is a self-hosted local AI platform offering GUI, CLI, REST API and SDKs to host and run multimodal models (text, image, code, speech), manage model lifecycle, benchmark inference, deploy on-prem agents, and keep data local.

Supernova.io is an AI collaborative workspace enab...

Supernova.io is an AI collaborative workspace enabling product teams to prototype, manage design systems, sync tokens, convert Figma prototypes into production-ready components and code, and maintain searchable documentation, governance, and integrations for cross-team alignment.

Future AGI is a developer‑first platform for LLM o...

Future AGI is a developer‑first platform for LLM observability and evaluation across text, image, audio, and video. It provides synthetic dataset generation, no‑code experiment tracking, built‑in metrics, real‑time production monitoring, safety checks, and automated prompt refinement for continuous improvement.

ClearML AI Infrastructure Platform unifies GPU man...

ClearML AI Infrastructure Platform unifies GPU management, model development, and generative‑AI deployment across on‑prem, cloud, and hybrid setups, offering secure multi‑tenant provisioning, priority scheduling, fractional GPU allocation, integrated IDE, CI/CD, and streamlined workflows for data scientists, engineers, and DevOps.

Open Apps is an open-source app directory that off...

Open Apps is an open-source app directory that offers a curated selection of free alternatives to popular software tools, enabling users to find quality open-source solutions across various categories for development and productivity needs.

AI Horde is a community‑powered platform that harn...

AI Horde is a community‑powered platform that harnesses volunteer CPU/GPU resources to generate images, text, and utilities via an open REST API. Users can access it through web apps, earn kudos for queue priority, and view real‑time throughput stats.

Swimm is an application understanding platform tha...

Swimm is an application understanding platform that extracts business rules from legacy and mainframe code, combining static analysis and AI to build a searchable knowledge base, reverse-engineer architecture, map dependencies, and auto-generate diagrams and documentation.

Llama is a local AI tool that enables users to cre...

Llama is a local AI tool that enables users to create customizable and efficient language models without relying on cloud-based platforms, available for download on MacOS, Windows, and Linux.

Chainlit is an open-source framework for building ...

Chainlit is an open-source framework for building conversational AI applications that supports multimodal interactions, integrates with authentication providers, offers a prompt playground for optimization, and ensures data privacy through a self-hosted platform for managing conversational data.

APIPark is an open-source AI gateway and API porta...

APIPark is an open-source AI gateway and API portal that simplifies AI model management, integration, and deployment, offering unified API formatting, lifecycle management, and secure multi-tenant support for efficient AI usage.

Emdash.sh is an open-source agentic development en...

Emdash.sh is an open-source agentic development environment that orchestrates coding agents across isolated git worktrees for parallel execution and best-N experimentation. It provides a unified dashboard with built-in review tools and integrations to manage, compare, and ship agent-generated code without switching contexts.

Calcforge is an open-source platform offering a su...

Calcforge is an open-source platform offering a suite of calculators for civil, mechanical, and electrical engineering. It includes tools for structural analysis, design evaluations, and project planning, facilitating collaboration and enhancing productivity.

MD Editor is an AI-powered markdown editor for tec...

MD Editor is an AI-powered markdown editor for tech writers, featuring intelligent suggestions, customizable themes, and seamless workflow improvements. Improve productivity with various export formats and easy collaboration.

Open SaaS is an open-source framework for building...

Open SaaS is an open-source framework for building scalable applications with React and Node.js, offering features like pre-configured authentication, payment integrations, TypeScript support, an admin dashboard, and easy deployment without vendor lock-in.

Foundry Local runs AI models on-device using ONNX ...

Foundry Local runs AI models on-device using ONNX Runtime (CPU/GPU/NPU) to keep data local, offering an OpenAI-compatible API, Python/JS/C#/Rust SDKs, a model hub, and CLI tools for edge and enterprise deployments.

Pangea.ai connects firms with vetted agencies for ...

Pangea.ai connects firms with vetted agencies for product building, team augmentation, and fractional executive support. It offers fully managed teams from design to launch, Build‑Operate‑Transfer centers, and rapid matching by tech stack or role within 24 hours.

Metaflow is an open‑source Python framework for bu...

Metaflow is an open‑source Python framework for building, managing, and deploying ML workflows. It supports local development, seamless cloud migration, automatic variable tracking, compute scaling, versioned workflow storage, and one‑click production rollout.

claude-dev.tools is a session analysis and debuggi...

claude-dev.tools is a session analysis and debugging suite for Claude that reconstructs full session context and provides detailed token attribution across all components. It offers local and remote log inspection, execution trace visualization, and security monitoring through a self-hosted, open-source desktop application.

cli-anything hub is a registry and marketplace for...

cli-anything hub is a registry and marketplace for agent-native CLIs and skills, indexing dozens of tools across 31+ categories. It provides a unified CLI for discovery, installation, inspection, and integration tooling for agent developers.