Free AI Tools for Tech & Development

Official pricing lists a Free plan allowing up to five messages per day, separate from the paid plans.

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Definite offers a $0 forever plan with five credits each month plus two data connectors and access to its AI analyst.

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2026-09-26: Openjourney's official pricing documentation says its image-generation platform has always remained free and identifies a Free Plan alongside optional premium plans.

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2026-09-26: GlasgowGPT's official chatbot homepage invites visitors to use the Scottish-dialect AI chatbot and asks for voluntary donations to support its operation, documenting publicly usable free access.

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Official site offers the Sheets AI toolkit with 100,000 free characters each month on its free plan.

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PDFgear's official Chat PDF page states that its AI PDF chat is completely free on supported desktop and mobile platforms.

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Official page lists a $0 Free subscription with 100 credits per month; card requirement is not stated.

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2026-09-26: The official Chrome Web Store listing says the ChatSonic extension is free to use; a Writesonic account unlocks additional features, documenting a usable free extension capability distinct from its upgrades.

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Official pricing lists a continuing $0/month plan with 20 web-design leads per week and explicitly says no card required.

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2026-09-26: CAST AI's official cost-monitoring page explicitly says users can manage Kubernetes expenses for free with real-time tracking, matching the listed cloud-cost-monitoring service.

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SaneBox says Email Deep Clean is provided free of charge; card requirement is not stated.

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2026-09-26: Relevance AI's official pricing page lists an ongoing $0 Free plan with 200 monthly actions for its AI-agent platform, which includes the listed document-processing workflow.

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Free-to-browse curated directory; no account or paid upgrade is indicated.

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The official pricing page's Free plan includes five meeting transcripts per month, with summaries, transcription, and search.

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Official pricing lists a free Hobby tier for casual use and says users can start for free without a credit card.

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2026-09-26: The official Small Design Tools page publishes the listed creative ChatGPT prompt collection for direct access without a signup trial or recurring payment requirement.

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2026-09-26: Allen Institute’s official page says Objaverse-XL is openly available and hosted on Hugging Face, and links directly to download/get-started resources for the listed 3D asset dataset.

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The official Dolly repository publishes the model project under Apache 2.0 and includes a no-charge perpetual license for local use and modification.

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The official GPT4All project provides a local desktop LLM runtime and downloadable models, allowing ongoing inference on the user's own computer without a paid hosted subscription.

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2026-09-26: Microsoft's official Bing chat page provides the AI chat experience as an accessible service and does not document a paid subscription requirement for ordinary ongoing chat use.

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2026-09-26: NannyML's official open-source repository publishes its model-monitoring library under an open-source license, allowing the listed regression-analysis software to be used on an ongoing basis without a product subscription.

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Official game is playable directly in the browser with questions visible and no payment or sign-in gate.

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The current official setup guide says the PR-review bot uses a free Flows Network account and can run an open-source model on a community node or a self-hosted machine.

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Official page provides downloadable shapes and states they are free for personal or commercial projects.

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Developer offers the Mac app free via Gumroad with a $0 price option; tips are optional.

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Public mock API generator is usable as a free tool; no card requirement indicated.

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Official pricing lists a continuing $0 plan with limited charts, dashboards, and datasets; site says no card required.

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The current MIT-licensed OpenAI Cookbook remains freely readable and reusable as an ongoing collection of AI API examples and guides; its README makes clear that executing API examples requires a separate OpenAI API key, so no free inference allowance is claimed.

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Official repository identifies the project as MIT-licensed; usable with local Ollama models, so the software itself has a sustainable no-cost path without a card (hosted LLM provider charges may apply).

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Official Gumroad listing is $0+ and offers downloadable prompt vault.

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