Explore Free AI Tools

Official pricing lists a Developer edition as free forever, with database/API access for experimentation and development; production use is excluded from this free tier.

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The official Chainer repository identifies a flexible deep-learning framework and publishes it under the MIT License, establishing ongoing usable free machine-learning software.

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The listed PlaidML repository distributes the machine-learning framework as open-source software that can be installed and run locally without a recurring product fee.

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The official PyTorch repository describes a deep-learning framework and provides its source under a permissive open-source license, enabling repeated local use of the listed machine-learning capability without a paid service plan.

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2026-09-26: Official Apache SINGA site identifies a distributed deep-learning library for training machine-learning models and provides installation instructions as an Apache project for ongoing use.

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Official draw.io site describes its diagramming desktop app as free forever, with no sign-up required and open-source licensing.

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Official Cacoo/Nulab pricing lists an Always Free plan for its collaborative diagramming product.

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Official pricing describes a no-expiry Free plan with up to five flipbooks and 15 pages per flipbook, providing usable ongoing access to the listed publishing product.

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Official pricing offers a free plan with no credit card required for the TalentLMS learning platform. The plan is presented as a standing plan rather than a time-limited trial. Reviewed 2026-09-26.

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Official Kahoot! plans confirm Kahoot! Go is a free plan for teachers with tools for creating lessons and tracking progress.

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Official pricing lists a $0/month Free plan with 6,000 emails per month.

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Official pricing identifies a Free Plan and distinguishes paid plans as including everything in Free plus additional engagement features, establishing continuing access to the email/survey service.

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Official pricing lists a $0 Free-forever tier for limited data connectors with up to 1 million events per month and 1-hour scheduling.

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Official pricing lists the Developer monitoring plan at $0 per month and explicitly says it is free forever for ongoing application monitoring.

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Official pricing describes a Free plan with recurring monthly event and span allowances and core error-monitoring features.

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The official pricing page lists a $0 Free tier for Fiddler AI observability, including real-time guardrails, establishing usable free product capability.

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Official Jefit materials describe a free version with an exercise database and workout-planning functions, supporting repeatable use of the listed fitness product.

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Official pricing describes the Ninja Forms core as free forever, with unlimited submissions and core form-building features; add-ons are optional.

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Official pricing lists FormKeep Free at $0 per month with 50 submissions per month, spam protection, unlimited forms, and daily notifications.

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The official Create React App repository provides the build tool under an open-source license for local use without a subscription; the repository also warns that the project is deprecated.

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The listed official Jubatus repository provides the machine-learning framework source code for public download; the repository's open-source license permits ongoing use without a subscription.

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Official plans describe PlayCanvas as free and open source and provide a $0 editor tier with unlimited public projects and public teammates.

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Official pricing documents the free Starter edition for individual personal use, allowing users to build with Stencyl; the free product is not restricted to a trial period.

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The official Defold site describes the game engine as free forever and source available. This documents repeatable free access to the listed development tool. Reviewed 2026-09-26.

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KNIME's first-party pricing page offers a free Analytics Platform and free Personal account with its K-AI assistant available for 20 interactions per month, establishing recurring usable free AI access.

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Official Neo4j pricing lists a Free AuraDB plan for learning and exploring graph data, establishing an ongoing no-cost database capability.

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Official pricing lists a Free Starter plan with one user, templates and graphics, and 3 downloads per month; the page states no credit card is required.

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Official pricing lists a $0 Basic plan with image resizing and design editing, documenting usable ongoing free design capability.

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Official pricing offers a $0/month Starter plan with one design project, a limited catalog, exports, and rendering credits; the free project supports usable 3D design work.

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Google's first-party documentation identifies LiteRT as TensorFlow Lite's on-device machine-learning successor, and its project source is available under Apache 2.0; this establishes ongoing usable, free AI inference software.

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