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$0 Infrastructure
We run on static hosting and the AI built into your browser. No inference servers, no GPU fleets, no usage-metered bills — just edge-delivered code.
Your writing, refined & private
MooduTools is a free, browser-based text productivity suite. Build better prompts, rewrite in the perfect tone, and summarize long text — an on-device WebGPU LLM (WebLLM) handles it all entirely in your browser, so your words never leave your machine.
Our Mission
MooduTools was built around a simple belief: your words deserve to stay yours. Instead of uploading your text to a cloud server to be analyzed and stored, you write or paste it, and a local AI refines it instantly. A lightweight model runs directly on your device's GPU — no installation, no Chrome settings, no flags. Your text never leaves your machine, and no account or app is ever required.
What Makes Us Different
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100% On-Device
A lightweight WebGPU LLM (WebLLM) executes locally on your hardware. Rewriting and summarizing happen on your own GPU in any WebGPU-capable browser, with zero setup — so it is fast, free, and works even offline relative to any AI backend.
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Zero Data Egress
Your text and prompts are never transmitted. No fetch, no telemetry, no server logs — there is genuinely nothing to leak.
“The most private option is also the most cost-effective option. That inversion is the quiet idea at the heart of MooduTools.”
Who We Are
MooduTools is an independent engineering project by developers and writers who believe productive text work should be approachable, fast, and private. We live in the gap between “an idea” and “a finished piece of writing,” and we built MooduTools to close it — one local inference at a time.
Our Engineering Philosophy
We treat privacy as a structural property rather than a promise. Every piece of the pipeline — from the per-tool system prompt to the on-device text model to the timeout-safe runtime — is designed to keep user data on the device and to keep quality high within that constraint. If you enjoy the craft behind it, our blog and engineering documentation walk through each system in depth.
Explore the technology
Architecture deep-dives into zero-cost on-device inference and the privacy guarantees that let text tools run 100% locally.
Get in Touch
Have a text you want refined, a question, or feedback? We would love to hear from you. Visit our Contact page to reach out — we reply within one to two business days.