Other AI tools help you read your inbox. Sylvia helps you act on it. Just type what you want — archive, label, clean up, or reply in bulk — and Sylvia does it for you, always asking before it acts.
Sylvia understands plain English, plans actions across your inbox, and executes them only after you confirm. No commands to memorise. While other assistants explain your emails, Sylvia manages them.
"Find emails from my landlord about the lease, sent before March." Sylvia builds the Gmail query and surfaces matching threads in seconds.
Auto-tag invoices, newsletters, receipts or anything you describe. Sylvia learns the pattern and applies labels in bulk.
Long back-and-forth? Ask "summarise this thread" and get the gist, decisions made, and what's pending.
Sylvia drafts polished replies in your tone. Review and send — or ask her to redo with different framing.
Archive, trash, or move hundreds of emails in one go. Sylvia previews exactly what will change before doing anything.
Destructive actions always show a clear preview — count, scope, what will happen — and wait for your "yes".
Sylvia runs entirely in your browser. You bring your own AI key, you stay in control.
Add Sylvia from the Chrome Web Store. Sign in with your Google account so she can read and act on your Gmail.
Use the built-in Sylvia plan (no key needed), or bring your own OpenAI, Gemini or Azure key stored locally in your browser.
Sylvia appears as a sidebar inside Gmail. Type what you want — she plans, asks, and executes.
Sylvia turns instructions into safe, reviewable Gmail operations.
The Sylvia plan is hosted by us — no API key needed, no monthly subscription. Buy replies when you need them. They never expire. Prices exclude VAT, which is calculated at checkout based on your location.
Questions about billing? Write to support@sylviamail.app.
Replies in seconds — no waiting, no spinning
No API accounts, no billing, no keys to manage
Each request passes through four specialised AI stages so nothing slips through the cracks.
Reads your request and decides what needs to happen — what Gmail data is needed, what write actions are pending, and whether the task can be answered directly or requires execution first.
Translates the plan into a precise list of Gmail commands (search, read, label, archive, reply, send…) and runs them. Self-corrects on errors and does a second pass when read results inform what to write next.
Receives all command results and crafts the reply you see. Decides whether the task is truly complete or whether more data must be fetched, triggering another Executor pass if needed.
Independently checks that the reply fully satisfies your original request. If it spots a gap — a missed action, wrong interpretation, or missing detail — it sends a correction back into the loop automatically.
Sylvia is built to handle your email with the minimum footprint necessary. No training on your data, no persistent storage of email content.
Add Sylvia to Chrome and start chatting with your Gmail in under a minute.
Add to Chrome — free