XMate

Overview

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

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.

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Details

Version
0.3.0
Updated
February 22, 2026
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Offered by
Story
Size
64.19KiB
Languages
2 languages
Developer
Email
simpai@kakao.com
Non-trader
This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

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The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

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