Privacy at numbo.io

One page covering every third party touched by numbo.io. The calculators and converters compute entirely in your browser — what you type stays on your device. The AI-powered tools (Word Unscrambler definitions, Text Summarizer, daily quote) send your input to OpenAI via a Cloudflare Worker. Analytics is anonymous Google Analytics 4 with truncated IP. We don't collect emails, don't ask you to sign up, and don't sell anything.

What we don't do

No accounts. No signup, no email collection, no email-gated content.
No popups. No exit-intent modals, no newsletter prompts, no "are you sure you want to leave?" interstitials.
No selling data. We don't sell or share any personal data, because we don't collect any.
No reading what you type. Calculator inputs (mortgage amounts, BMI, etc.) compute in your browser. We never see them.

Where data flows for AI-powered tools

Three places on the site use a large language model: Word Unscrambler definitions (the popover when you click a result word), the Text Summarizer, and the homepage quote of the day. Each sends its input — the word you clicked, the text you pasted, or just today's date — through a Cloudflare Worker we control to OpenAI's API (model gpt-5.4-mini). OpenAI processes the input and returns a response.

We don't log inputs. Responses are cached at Cloudflare's edge for 30 days, keyed by a SHA-256 hash of the input, so identical queries don't re-hit OpenAI and don't cost us money. The cache is purgeable on request.

Don't paste sensitive or confidential content into the Text Summarizer — the same advice applies to ChatGPT, Claude, Gemini, or any other free LLM tool.

Third-party processors

OpenAI (San Francisco, USA): Receives the inputs you submit to the AI-powered tools (Word Unscrambler definitions, Text Summarizer, quote of the day). OpenAI Privacy Policy.
Cloudflare (San Francisco, USA): Fronts the site as a CDN, runs the API Worker, and edge-caches LLM responses. Cloudflare Privacy Policy.
Google Analytics 4: Anonymous page-view stats, IP truncated. Google Privacy Policy.
Google AdSense: Displays side-rail ads, sets personalization cookies. Opt out of ad personalization.
Frankfurter / European Central Bank: Public exchange-rate feed used by the Currency Converter. No user data sent.
DigitalOcean (San Francisco, USA): Origin server hosting. Only sees Cloudflare's IPs in front, never user IPs.

What we store on your device

localStorage / numbo-theme: Your theme preference (light, dark, or auto).
localStorage / numbo-base-prefs-v1: Base Converter format toggles (uppercase hex, grouping, bit width, signed mode).
localStorage / numbo-ccy-rates-v1: Cached currency rates with a 24-hour TTL — reduces calls to the Frankfurter API.
Third-party cookies: Google Analytics sets _ga and _ga_TNW7RLJM4Q. Google AdSense sets personalization cookies, which you can opt out of via Google's Ad Settings. We don't set any first-party cookies of our own.

Your choices

Block third-party cookies in your browser to disable Google Analytics and AdSense tracking. Most browsers have a one-click toggle for this.
Use private / incognito mode for fully ephemeral sessions — nothing persists.
Email [email protected] with any privacy concern or data-deletion request. We can purge the Cloudflare edge cache for specific LLM inputs if needed.

Effective from 2026-05-16. Material changes will be announced in the site's Atom feed.