SakuraMeter — Usage Tracker for ChatGPT & Codex

Track ChatGPT activity, heatmaps and Codex usage limits. Local history, read-only refresh, and Sakura light and dark themes.

SakuraMeter is a local ChatGPT companion for usage tracking, Codex quota visibility, and an optional Side Chat workflow. • Local activity tracking: count confirmed user messages and explore daily trends, annual heatmaps, monthly and weekly charts, and time-of-day summaries. • Codex usage: view reported usage percentages, window durations, reset times, and a local 7-day trend from your signed-in ChatGPT session. Refresh is read-only and does not send a chat or invoke a model. • Pro tracking: classify confirmed sends locally and show allowance information only when ChatGPT exposes it. Unknown quotas remain unavailable instead of being invented. • Optional Side Chat: open your signed-in ChatGPT session beside the current page. After you grant access to a site, SakuraMeter can prepare an explicit highlight and a limited visible-page excerpt for review. Context is included only when you send your own ChatGPT message. You can pause capture or clear session context at any time. • Overview, Activity and Usage pages; English and Chinese interfaces; keyboard controls; Sakura light and dark themes; local history import and export. Privacy: usage history stays in your browser profile. Side Chat context stays in memory or session storage and is cleared when the panel/session closes. SakuraMeter has no developer backend, telemetry, or model proxy. It does not store passwords or authentication tokens. Selected references sent through Side Chat become ordinary ChatGPT message text and are governed by your ChatGPT account settings. Optional access to other websites is requested only when you enable Side Chat for the current site or all sites. Experimental global reset forecasts from codex-reset.com are third-party estimates, not official promises or your personal allowance schedule. SakuraMeter is an independent community extension and is not affiliated with or endorsed by OpenAI.