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-Sora-Plan v1.3 helps creators generate AI-assisted video from prompts, images or other creative inputs.
Free
Free plan Open source
PocketBase helps developers open-source single-binary backend with database, authentication, file storage, and...
Free
Free plan API Open source
PostgreSQL helps developers open-source relational database widely used as a foundation for modern application...
Free
Free plan Open source
Presenton helps users create or improve presentation content with AI for faster slide, visual, or delivery wor...
Free
Free plan API Open source
PydanticAI helps developers python agent framework built around typed validation, structured outputs, and appl...
Free
Free plan API Open source
Pyramid Flow helps creators generate AI-assisted video from prompts, images or other creative inputs.
Free
Free plan Open source
PyTorchVideo helps creators generate AI-assisted video from prompts, images or other creative inputs.
Free
Free plan Open source
Semantic Kernel helps developers sdk for integrating ai models, plugins, memory, and agent workflows into appl...
Free
Free plan API Open source
Stitch helps developers google design tool that uses ai to generate multi-screen interfaces and frontend code...
Free
Free plan API
STTN helps creators generate AI-assisted video from prompts, images or other creative inputs.
Free
Free plan Open source
Windmill helps developers open-source developer platform for scripts, workflows, internal tools, and automatio...
Free
Free plan API Open source
AICommits helps developers open-source cli that generates commit messages from staged git changes..
Free
Free plan Open source
AnimateAnyone helps creators generate AI-assisted video from prompts, images or other creative inputs.
Free
Free plan Open source
AniPortrait helps creators generate AI-assisted video from prompts, images or other creative inputs.
Free
Free plan Open source
Appsmith helps developers open-source internal application builder with database, api, and ai integrations..
Free
Free plan API Open source
Chroma helps developers developer-focused database for embeddings and retrieval in ai applications..
Free
Free plan API
ClearML helps developers open-source machine-learning platform for experiment tracking, orchestration, and mod...
Free
Free plan API Open source
Giskard helps developers ai testing platform for evaluating machine-learning and llm systems for reliability a...
Free
Free plan API Open source
Google Mobile-Friendly Test helps with mobile rendering checks for marketers, creators, site owners and SEO te...
Free
Free plan
Grounding DINO helps creators generate AI-assisted video from prompts, images or other creative inputs.
Free
Free plan Open source
Lighthouse helps with automated web audits for marketers, creators, site owners and SEO teams.
Free
Free plan
MariaDB helps developers open-source relational database compatible with common mysql application workloads..
Free
Free plan Open source
Mockoon helps developers open-source api mocking tool for creating local and hosted mock endpoints..
Free
Free plan API Open source
Node.js helps developers javascript runtime used for server-side applications, tooling, apis, and development...
Free
Free plan API 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.