Unknown author · Communication
5 items
Reviews your draft before you send it - tone, risk flags, and a suggested rewrite. Works in Gmail and Outlook. Sent is forever. Sendsei reads your draft before you send it and tells you how it will actually land. One click on "Check before send" and Sendsei gives you: — A tone read: how the email comes across, not just whether it's grammatically correct — Risk flags: the passive-aggressive phrase, the buried ask, the line that reads as hostile — with the exact words that cause it — A suggested rewrite that keeps your point but loses the problem It's not a grammar checker. It reads for how a real person on the other end will feel reading it. WORKS IN GMAIL AND OUTLOOK Gmail and Outlook on the web — new emails, replies, and forwards. WHITE BELT — free Tone read and risk flags on every email. 4 checks a day. No credit card. BLACK BELT — $10/month Everything in White Belt, plus the full context form (tell Sendsei your intent, the relationship, your tone goal, the stakes) and an intent read that judges whether your draft actually achieves what you set out to do. 50 checks a day. HOW IT WORKS When you click "Check before send," your draft is sent securely to Sendsei's servers and to the Anthropic API to generate the review. Your drafts are never stored and never used to train any model. Privacy policy: https://sendsei.org/privacy Questions: hello@sendsei.org
Sep 8, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.