Track your Claude usage limits in real time — across Chat, Code, Cowork, and Design.
Trusted by thousands of Claude Pro, Max, Team, and Enterprise users worldwide.
Claude's rate limits are opaque — you don't know how much you've used, when it resets, or whether your plan is right for you. Claude Tuner fixes that.
- See your limits — live 5h / 7d usage gauges with reset countdowns
- Predict resets — know if you'll hit the cap before the window rolls over
- Find the right plan — "what if" simulations across Pro, Max 5x, and Max 20x
- Monitor your team — free dashboard with per-member analytics, breach tracking, and group comparisons
| Usage Trends | Team Dashboard |
|---|---|
 |
 |
| Insights | Members |
|---|---|
 |
 |
Real-Time Usage Monitoring
- Live 5-hour and 7-day usage gauges
- Reset countdown timers
- Toolbar badge showing current usage level
- 6-tier pace indicator (safe → critical)
- Sparkline charts for usage trends
- Multi-organization support (auto-detect or pin)
Smart Alerts & Predictions
- Usage prediction at reset based on consumption rate
- Configurable threshold notifications (80%, 95%)
- Weekly usage reports via email
- Estimated token breakdown (Opus / Sonnet / Haiku)
- Peak hours indicator (weekday 12:00–18:00 UTC)
- Real-time 429 rate limit detection
Plan Simulation & Optimizer
- "What if" simulation for every plan (Pro / Max 5x / Max 20x)
- Visual exceeded-days comparison
- Smart upgrade/downgrade recommendations
- Cost-efficiency analysis
Plan Fitness Score
- At-a-glance fitness rating for your subscription
- Percentile ranking among Claude Tuner users
- Usage distribution histogram
Hourly Activity Heatmap
- 24×7 heatmap of your Claude usage patterns
- Peak hours and quiet periods at a glance
- Weekday vs weekend comparison
Team Dashboard — free for all members
- Per-member usage analytics and rate limit tracking
- Token usage leaderboard and cost analytics
- Breach tracking with plan upgrade/downgrade recommendations
- Group-based usage comparison analysis
- Daily team reports and weekly personal reports
- Training data policy monitoring
- Domain-based auto-invite and group management (admin)
- CSV / Excel export
| Plan | 5h Limit | 7d Limit | Extras |
|---|---|---|---|
| Pro (1x) | ● | ● | — |
| Max 5x | ● | ● | — |
| Max 20x | ● | ● | — |
| Team Standard | ● | ● | — |
| Team Premium | ● | ● | — |
| Enterprise (seat-based) | ● | ● | Spending cap |
| Enterprise (usage-based) | — | — | Spending cap |
git clone https://github.com/chaehyun2/claudetuner.git- Open
chrome://extensions/ - Enable Developer mode
- Click Load unpacked and select the cloned folder
You ──→ Claude.ai ──→ Claude Tuner extension ──→ Claude Tuner API server
(reads usage data) (stores history & analytics)
│
▼
Extension popup Web dashboard
(gauges & alerts) (charts, team, insights)
- Collect — The extension reads your usage data from Claude.ai (no conversation content, ever)
- Analyze — Snapshots are sent to the API server, which stores history and computes analytics
- Display — View real-time gauges in the popup, or dive deep on the web dashboard
Point the extension at your own server by editing config.js:
const CT_CONFIG = {
DEFAULT_SERVER_URL: 'https://your-server.example.com',
DEFAULT_API_KEY: 'your-api-key',
SITE_URL: 'https://your-dashboard.example.com',
};See API.md for the full server API specification.
- No conversation content is ever collected — no messages, files, or prompts
- Only usage metrics, reset timestamps, plan info, and organization membership
- Self-service account deletion available anytime
- Full privacy policy: claudetuner.com/privacy
Architecture
popup.html/js Popup UI (usage gauges, charts, recommendations)
options.html/js Settings page (intervals, alerts, org selection)
background.js Service worker (alarm scheduling, message routing)
bg/collect.js Main collection engine (Claude.ai API -> server)
bg/plan.js Plan detection, change execution, recommendations
bg/api.js Claude.ai API wrapper (dual auth fallback)
bg/storage.js Chrome storage helpers
bg/constants.js Configuration constants
bg/badge.js Toolbar badge updates
bg/notifications.js Usage alerts, reset notifications
bg/analytics.js GA4 event tracking
config.js Centralized config (server URL, API key)
content.js Content script (message relay)
page-script.js Injected into Claude.ai (fetch with page auth)
i18n.js Localization helper
_locales/ English and Korean translations
No build step — the source files in this repo are identical to what's published on the Chrome Web Store.
Verify CWS Build
This extension has no build step. The files in this repository are byte-for-byte identical to the Chrome Web Store package, with one intentional difference: manifest.json in the private development repo includes a pages.dev preview URL in externally_connectable that is stripped during publishing.
To verify:
- Install the extension from CWS
- Find the installed files at
~/Library/Google/Chrome/Default/Extensions/ajnnckikagphjbgpicpoffockabnhond/<version>/ - Compare with this repository (excluding
_metadata/added by Chrome)
See CONTRIBUTING.md.
See SECURITY.md.
Claude Tuner is not affiliated with or endorsed by Anthropic. Token limits are community-observed estimates, not official figures.