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TabType
Free, open-source AI autocomplete for macOS in every app.
TabType adds Cotypist-style ghost-text autocomplete to every Mac app — Slack, mail, browsers, anywhere you type. A local LLM (MLX) generates suggestions 100% on-device: no cloud, no account, no keystroke ever leaves your Mac. Free & MIT-licensed.
Hey PH! 👋
I built TabType because I loved the idea behind Cotypist — inline AI autocomplete that works in *every* Mac app — but I wanted it open-source, free forever, and fully private. So I built exactly that.
What it does:
⌨️ As you type — in Slack, WhatsApp, your browser, anywhere — a dimmed ghost-text suggestion appears at your cursor. Tab accepts it word-by-word, or all at once.
🔒 100% on-device. A local LLM (Qwen3-4B via Apple's MLX) generates every suggestion on your Mac's own silicon. No cloud, no account, no telemetry — nothing you type ever leaves your machine. Macs with 24 GB+ RAM automatically get a higher-precision model.
🧠 It's context-aware: it reads the conversation around your cursor (via the accessibility tree — no screenshots needed in chat apps), remembers your recent messages, and learns your writing style locally.
Full transparency, because I think it matters: I'm a senior full-stack engineer (5+ yrs) and I built this with heavy use of AI coding assistants — the README has a complete AI disclosure covering the code, the artwork, and exactly where the suggestions come from. It's a real native Swift app with a hand-tuned inference pipeline and 50+ tests, not a wrapper.
It's an early alpha and it's MIT-licensed with no plan to ever commercialize. The most valuable thing you can do is try it and tell me where it breaks — every bug report genuinely shapes the roadmap.
GitHub: https://github.com/nilava/TabType
Download: https://github.com/nilava/TabTyp...
Ask me anything — architecture questions especially welcome 🙂
About TabType on Product Hunt
“Free, open-source AI autocomplete for macOS in every app.”
TabType was submitted on Product Hunt and earned 11 upvotes and 5 comments, placing #154 on the daily leaderboard. TabType adds Cotypist-style ghost-text autocomplete to every Mac app — Slack, mail, browsers, anywhere you type. A local LLM (MLX) generates suggestions 100% on-device: no cloud, no account, no keystroke ever leaves your Mac. Free & MIT-licensed.
On the analytics side, TabType competes within Productivity, Open Source, Artificial Intelligence and GitHub — topics that collectively have 1.2M followers on Product Hunt. The dashboard above tracks how TabType performed against the three products that launched closest to it on the same day.
Who hunted TabType?
TabType was hunted by Nilava Chowdhury. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of TabType including community comment highlights and product details, visit the product overview.
Nilava Chowdhury