All tools

Every tool runs in your browser — files are never uploaded. Free to use, no signup required.

💳 Money tools

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Subscription Tracker

Add subscriptions and see monthly, yearly, and upcoming totals.

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Renewal Calendar

See which charges are coming and when, on a monthly calendar.

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Subscription Cost Calculator

Compare billing cadences and see annualized cost per service.

More tools on the way

SubNimbus grows a few tools at a time, prioritized by what people ask for: bank-linked auto-detection of recurring charges, email renewal reminders, shared household plans, and price-increase alerts are next on the list.Tell us what you need — requests genuinely set the roadmap.