XMate

by Story · Social Networking

Manifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

Save profile notes on X and quickly adjust scheduled post time with shortcut buttons.

Users

−1 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#246K

#205K among extensions

Version

0.3.0

updated 22 Feb 2026

Users

monthly, 8 months

Latest, 15 Oct 2026: 5 usersMove the mouse over the chart for any month

Ratings count

monthly, 8 months

Latest, 15 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About XMate

XMate is a memo and scheduling helper extension for X (formerly Twitter). Key features - Korean IME input safeguard to reduce last-syllable truncation while composing posts - Create, edit, and delete per-user notes on profile pages - Show saved notes inline next to user names in timeline - userId-based storage so notes survive handle changes - Multi-device sync with chrome.storage.sync - View/search/delete saved notes and check storage usage in Options - Quick schedule-time shortcuts in the scheduling modal - In 5m, 10m, 30m, 1h - +1h, -1h, +1d, -1d Data handling - Only user-entered notes are stored. - Data is kept in browser sync storage and is not sent to a separate custom backend server. v0.3.0 - Resolved the Chrome Sync Storage limitation (8KB per item quota limit) caused by storing all user records in a single aggregate key - Compressed internal JSON payload keys to a single character during storage I/O to significantly reduce overhead. - Result: The storage footprint per user has been slashed by over 70% allowing synchronize about 1,400 users simultaneously.