This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
Most reliable and accurate grammar checkers today are LLM-based, but they send your text to a server. That always bothered me for emails, contracts, medical notes, anything I'd rather keep to myself. So I built a multilingual grammar checker and rewriter that uses Chrome's on-device Prompt API and has no backend at all.
Features:
Your text never leaves the device. Text checking and rewriting run on Chrome's built-in model.
101+ languages supported, with no language picker. Each sentence's language is detected separately, so an English email with a German quote gets both checked correctly.
Google Docs support. Docs draws text on a canvas, which most extensions can't read. It's checked page by page as you scroll, with a count for each page.
Rewrite a selected sentence in several modes.
One-click fixes, or Fix all from the badge, right inside the text field.\
Double-click a word for synonyms and a definition that fits the sentence, including in Google Docs.
Interface in 33 languages, including full right-to-left Arabic, Persian, and Urdu.\
System requirements: Chrome 138 or newer on Windows, macOS, Linux, or a Chromebook Plus, with 22 GB of free disk space and either a GPU with more than 4 GB of memory or 16 GB of RAM.
Private Writing Assistant was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #231 on the daily leaderboard. Privacy-first spelling and grammar checks & rewrites in 101 languages, run entirely on your device. Nothing you write on websites is sent anywhere.
Private Writing Assistant was featured in Chrome Extensions (52.9k followers), Productivity (665.6k followers), Writing (59.5k followers) and Languages (14.5k followers) on Product Hunt. Together, these topics include over 215.9k products, making this a competitive space to launch in.
Who hunted Private Writing Assistant?
Private Writing Assistant was hunted by privatetextai. 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.
Want to see how Private Writing Assistant stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
privatetextai
Hi,
Most reliable and accurate grammar checkers today are LLM-based, but they send your text to a server. That always bothered me for emails, contracts, medical notes, anything I'd rather keep to myself. So I built a multilingual grammar checker and rewriter that uses Chrome's on-device Prompt API and has no backend at all.
Features:
Your text never leaves the device. Text checking and rewriting run on Chrome's built-in model.
101+ languages supported, with no language picker. Each sentence's language is detected separately, so an English email with a German quote gets both checked correctly.
Google Docs support. Docs draws text on a canvas, which most extensions can't read. It's checked page by page as you scroll, with a count for each page.
Rewrite a selected sentence in several modes.
One-click fixes, or Fix all from the badge, right inside the text field.\
Double-click a word for synonyms and a definition that fits the sentence, including in Google Docs.
Interface in 33 languages, including full right-to-left Arabic, Persian, and Urdu.\
System requirements: Chrome 138 or newer on Windows, macOS, Linux, or a Chromebook Plus, with 22 GB of free disk space and either a GPU with more than 4 GB of memory or 16 GB of RAM.
Website: https://privatetext.ai
I'd love feedback, especially from people writing in languages other than English.