These tools are free to use outright — not free trials, and not paid products with a limited free tier. Tools that merely include a free plan alongside paid ones are listed separately, because the difference matters when you are choosing something to rely on.
Open-source self-hosted AI coding assistant for code completion and chat when teams want control over deployme...
Free
API Open source
Tencent HunyuanVideo helps creators generate AI-assisted video from prompts, images or other creative inputs.
Free
Free plan Open source
Backstage helps developers open-source developer portal framework for organizing services, documentation, owne...
Free
Free plan API Open source
Firebase Studio helps developers with AI-assisted coding, code understanding, and practical software developme...
Free
Free plan API
An open-source natural-language data assistant that helps developers and analysts generate SQL and query struc...
Free
Free plan API Open source
Google Alerts helps with web mention monitoring for marketers, creators, site owners and SEO teams.
Free
Free plan
Jan helps users with local AI chat through an interactive AI chat experience.
Free
Free plan Open source
Open-source visual editor for React applications that lets developers visually edit interfaces while keeping c...
Free
API Open source
Piper provides local text to speech for creators, businesses, educators, and developers who need practical aud...
Free
Free plan API Open source
Qdrant helps developers vector search engine for storing embeddings and retrieving semantically similar record...
Free
Free plan API
An open-source VS Code coding assistant for completion, inline editing, chat, and reviews using local or hoste...
Free
Free plan API Open source
Kimi helps users with long-context assistant through an interactive AI chat experience.
Free
Free plan API
OpenHands helps developers with AI-assisted coding, code understanding, and practical software development tas...
Free
Free plan API Open source
SadTalker supports AI-generated presenters, talking characters, lip-sync or related avatar video workflows.
Free
Free plan Open source
Whisper.cpp uses AI to transcribe, caption or analyze spoken video and audio for faster post-production.
Free
Free plan Open source
CopilotKit helps developers open-source toolkit for embedding ai copilots and agent interfaces into react appl...
Free
Free plan API
Plandex helps developers with AI-assisted coding, code understanding, and practical software development tasks...
Free
Free plan API Open source
Rust helps developers systems programming language used for performance-sensitive applications, tooling, and i...
Free
Free plan API Open source
Void helps developers with AI-assisted coding, code understanding, and practical software development tasks.
Free
Free plan API Open source
Aider helps developers with AI-assisted coding, code understanding, and practical software development tasks.
Free
Free plan API Open source
HuggingChat helps users with open model chat through an interactive AI chat experience.
Free
Free plan API
Kohya SS helps creators generate AI-assisted video from prompts, images or other creative inputs.
Free
Free plan Open source
ResearchRabbit provides visual literature discovery tool for exploring papers, authors, and citation relations...
Free
Free plan
Abstrackr helps researchers work with source material, analyze information, and organize research tasks in a f...
Free
Free plan
What to check before you choose
Free tools still have limits, and they are rarely the same limits. Some cap how much you can generate per day, some restrict commercial use, and some are free because the product is early and still changing. Before you build a workflow on a free tool, it is worth checking how the maker funds it — an open-source project and a venture-funded free beta tend to age very differently. Where a tool also publishes paid plans, you will find that noted on its own page.