Email Response Time Tracker — InboxSLA

Set reply deadlines per client. Get alerted before you miss an SLA. | Not affiliated with Anthropic, PBC.

⏱️ Stop wondering "when was that reply due?" InboxSLA is a Chrome extension that sets per-client reply deadlines (SLAs) on your Gmail threads and warns you with badges and notifications before they expire. One glance at your inbox tells you which emails are Overdue, Due soon, or On time. ━━━━━━━━━━━━━━━━━━━━ 📖 How to use (3 steps) 1. Register a client domain and SLA hours (e.g. 24 hours) 2. Open Gmail — matching threads get an SLA badge automatically 3. Get a notification as the deadline nears, then reply in time ━━━━━━━━━━━━━━━━━━━━ ✨ Key features ・Thread badges — color-coded Overdue / Due soon / On time right inside Gmail ・Per-client SLAs — set reply hours individually for each domain ・Deadline alerts — desktop notifications before an SLA expires ・Side panel manager — see all tracked threads and time left in one list ・Time-left countdown — each thread shows hours remaining ・Multilingual — English, Japanese, Korean and Spanish supported ━━━━━━━━━━━━━━━━━━━━ 🎯 Who it's for ・Agencies and freelancers juggling multiple clients ・Support and customer success teams with reply SLAs ・Anyone who tends to put off important replies ・People who want to manage deadlines inside Gmail alone ・Teams that want zero missed responses ━━━━━━━━━━━━━━━━━━━━ 💎 Pricing Basic (no cost): up to 3 clients and 10 monthly alerts Pro ($6/month): unlocks unlimited clients and unlimited alerts ━━━━━━━━━━━━━━━━━━━━ 🔒 Privacy All email content is processed only inside your browser and never sent to any external server. SLA settings and timer data are stored locally. Access is limited to Gmail (mail.google.com).