Launching today
GemType
Free, open-source Grammarly alternative powered by Gemini
29 followers
Free, open-source Grammarly alternative powered by Gemini
29 followers
GemType checks your grammar and rewrites text on any website — Gmail, LinkedIn, X, Reddit, anywhere. Like Grammarly, but free and open source: you plug in your own free Google Gemini API key. No account, no subscription, no tracking.
Thanks @hanifah1 ! Notion works — tested it myself (check Screenshot). Same for Gmail, LinkedIn, X, Reddit, forums, and normal text fields anywhere.
Google Docs is the one hard no for now: it doesn't use real text fields at all (everything is drawn on a canvas), and Google only opens its annotation API to a small whitelist of vendors. It's the same reason only Grammarly and a couple of others work there.
This looks incredibly clean! The automatic sentence re-check feature is brilliant because word-level fixes so often break the overall flow. Since the extension checks our writing every time we pause, have you run into any issues with Gemini's free-tier rate limits during heavy, fast-paced writing sessions?
@andati_abednego Thanks — the sentence re-check is honestly my favorite part too.
On rate limits: GemType is built to stay inside the free tier. It only checks after you pause (~1s), skips anything unchanged, caches results, and re-checks are scoped to one sentence instead of the whole text. Requests also go out one at a time, and if Gemini ever says 429 the extension just backs off and retries quietly.
In practice, a heavy writing day is a few hundred small requests against a much larger daily quota. In the worst case, after a fast burst, you wait a couple of seconds and see a spinner; I haven't been able to hit a real wall with normal writing.
How do you handle context when rewriting text on different websites? For example, does GemType adapt its suggestions differently for professional emails versus casual social media posts?
@lilia_amora Good question Lilia. Right now I keep those two things deliberately separate:
- Corrections never touch your tone — they make the minimal edit that fixes the grammar and keep your wording.
- Rewrites are explicit: you select text and choose the tone yourself — Improve, Shorten, Formal, or Casual. So for a work email you hit Formal, for a tweet you hit Casual.
Automatic per-site tone preferences (e.g. "always formal on Gmail") are on the roadmap — I'd rather ship that as an opt-in setting than have the tool silently guess your voice.
This looks interesting! Since GemType uses my own Gemini API key instead of a subscription, how does the free Gemini API tier hold up in day-to-day use? Have any users run into rate limits when using it for emails, documents, or social media writing throughout the day?
How does GemType handle websites with complex editors like Notion, Google Docs, or Figma? Have you run into any compatibility challenges?
What makes GemType different from Grammarly?