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.
Roo Code helps developers with AI-assisted coding, code understanding, and practical software development task...
Featured Free
Free plan API Open source
Phind helps developers with AI-assisted coding, code understanding, and practical software development tasks.
Featured Free
Free plan
Cline helps developers with AI-assisted coding, code understanding, and practical software development tasks.
Featured Free
Free plan API Open source
Duck.ai helps users with private chatbot through an interactive AI chat experience.
Free
Free plan
Decord helps creators generate AI-assisted video from prompts, images or other creative inputs.
Free
Free plan Open source
Open-source AI coding agent available through terminal, desktop, and IDE integrations with support for multipl...
Free
API Open source
Qwen helps users with Qwen assistant through an interactive AI chat experience.
Free
Free plan API
Visual Studio IntelliCode helps developers with AI-assisted coding, code understanding, and practical software...
Free
Free plan
Z.ai helps users with GLM assistant through an interactive AI chat experience.
Free
Free plan API
VideoCrafter helps creators generate AI-assisted video from prompts, images or other creative inputs.
Free
Free plan Open source
Schema Markup Validator helps with schema validation for marketers, creators, site owners and SEO teams.
Free
Free plan
AnythingLLM helps users with document chat through an interactive AI chat experience.
Free
Free plan API Open source
WhisperX uses AI to transcribe, caption or analyze spoken video and audio for faster post-production.
Free
Free plan Open source
Naver Search Advisor helps with naver indexing and search diagnostics for marketers, creators, site owners and...
Free
Free plan
Open-source terminal AI coding assistant from Charm that supports agentic software development with configurab...
Free
API Open source
SWE-agent helps developers with AI-assisted coding, code understanding, and practical software development tas...
Free
Free plan API Open source
Wav2Lip supports AI-generated presenters, talking characters, lip-sync or related avatar video workflows.
Free
Free plan Open source
Arize Phoenix helps developers open-source ai observability and evaluation toolkit for tracing llm and agent a...
Free
Free plan API
PearAI helps developers with AI-assisted coding, code understanding, and practical software development tasks.
Free
Free plan API Open source
Open-source terminal coding agent from Alibaba's Qwen team for writing, debugging, refactoring, and repository...
Free
API Open source
BasicVSR++ focuses on AI-assisted video enhancement such as upscaling, restoration, denoising or frame process...
Free
Free plan Open source
Open-source command-line AI agent from Google for software development, codebase tasks, and terminal workflows...
Free
API Open source
Goose helps developers with AI-assisted coding, code understanding, and practical software development tasks.
Free
Free plan API Open source
MuseTalk helps creators generate AI-assisted video from prompts, images or other creative inputs.
Free
Free plan Open source
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.