The short version
- AI Tool Sage is a blog plus a few browser-based tools. Everything we build runs 100% in your browser — the LLM Cost Calculator, the AI Tool Finder, and the Token Counter all compute on your device. Nothing you type or paste is uploaded to us.
- No accounts, no logins, no personal data collected. We don’t ask for your name, email, or any identifier to read the blog or use the tools.
- We do not set tracking cookies on our own surfaces. Cloudflare Web Analytics collects aggregate page-view data without cookies. Third-party advertising cookies (AdSense) load only after you consent in regions that require it.
- You can verify the client-side claims yourself. Open DevTools → Network and use any tool — you’ll see zero requests carrying your input.
Who we are, controller identification
AI Tool Sage is operated as a personal project by Guilherme Campos, an independent developer based in Brazil.
For the purposes of GDPR (EU), LGPD (Brazil), CCPA/CPRA (California) and similar laws, the data controller is Guilherme Campos, reachable at [email protected] for data-protection requests. General support is at [email protected].
Under Brazil’s Resolução CD/ANPD nº 2/2022, this project qualifies as an “agente de tratamento de pequeno porte” and is not required to formally appoint a Data Protection Officer (Encarregado), the controller above serves as the direct communication channel with data subjects, as required by Art. 11 of that Resolução and §2 of Art. 41 of the LGPD.
What information we process, and on what legal basis
Each operation below is mapped to its legal basis under LGPD Art. 7 (Brazil) and the equivalent GDPR Art. 6 (EU). We declare these explicitly so you can audit which basis we rely on for which path.
What you type into our tools
Our tools — the LLM Cost Calculator, the AI Tool Finder, and the Token Counter — run entirely in your browser. The text you paste into the Token Counter, the answers you pick in the AI Tool Finder, and the numbers you enter into the Cost Calculator are all processed on your device with JavaScript. None of it is sent to our infrastructure, cached, or logged, because no request carrying your input is made. The pricing data and tokenizer used by these tools are static files downloaded once with the page. Legal basis: not applicable — no processing by us occurs.
You can confirm this yourself: open DevTools → Network, use any tool, and watch — there are no requests carrying your input back to us.
Site visit data
We use Cloudflare Web Analytics to understand which pages people visit, in aggregate, so we can prioritize improvements. Cloudflare Web Analytics is server-side and does not set tracking cookies, does not fingerprint your device, and does not assign you a persistent identifier. Legal basis: LGPD Art. 7, IX, legitimate interest in measuring site usage in aggregate. GDPR Art. 6(1)(f) equivalent.
The data collected is limited to: the page URL, the referring URL, your country (derived from your IP, not stored individually), the browser family (e.g. “Chrome 130”), and Core Web Vitals performance numbers. None of this is linked to a person.
Strictly-necessary cookies
Cloudflare, as our hosting, DNS, and edge-compute provider, may set a small
number of strictly-necessary cookies to deliver the site and protect it from
automated abuse (for example, the __cf_bm bot-management cookie). These
cookies are required for the site to function and are not used for
advertising or tracking. Legal basis: LGPD Art. 7, IX, legitimate
interest in site security. Per the ANPD’s 2022 Cookie Guide, strictly-
necessary cookies do not require prior consent. See the
Cloudflare cookie policy
for the full list.
Local browser storage
To make the site usable across visits, AI Tool Sage stores small amounts of
data in your browser’s localStorage: your selected theme (light or dark),
your preferred language, and a flag indicating whether you’ve dismissed the
language-switch suggestion. This data never leaves your browser and is
never visible to us. Legal basis: LGPD Art. 7, V, execution of the
user-requested service (your preferences).
Advertising
AI Tool Sage may display AdSense units served by Google within blog articles. The home page, the tools, and legal pages remain ad-free.
Legal basis: LGPD Art. 7, I, consent of the data subject. Per the ANPD’s 2022 Cookie Guide, advertising cookies are not strictly necessary and require explicit prior consent with a banner that offers “accept” and “reject” with equal prominence.
We use Google Funding Choices as our Consent Management Platform (CMP). It is AdSense’s native CMP, implements the IAB TCF v2.2 consent signal, and is the Google-recommended path for LGPD, GDPR and CPRA compliance for publishers serving ads. The CMP banner is shown automatically to visitors from regions that legally require prior consent (EU, UK, Brazil, California), your choice, accept all, reject all, or customize, is stored and respected on subsequent visits. You can re-open the consent settings at any time via the “Privacy” link that the CMP injects into the page footer when active.
When you consent, third-party vendors including Google may use cookies and web beacons to serve personalized ads based on your visits to AI Tool Sage and other websites. If you decline, AdSense still serves ads but only non-personalized ones, based solely on the page content and not on your browsing history. You may also opt out of personalized advertising globally by visiting Google’s Ads Settings, or aboutads.info for industry-wide opt-outs.
We process no payment information of any kind. AI Tool Sage is free; there are no accounts, subscriptions, or checkout flows.
International data transfer
Our hosting and edge provider, Cloudflare, Inc., operates a global network; static pages may be served from any Cloudflare data center, typically the one closest to you. Since we collect no personal data tied to you, no personal data is transferred — only anonymous, aggregate page-view metrics described above.
Legal basis for any transfer: LGPD Art. 33, II, standard contractual clauses Cloudflare publishes for international transfers. GDPR equivalent: Art. 46(2)(c) SCCs.
Sub-processors
- Cloudflare, Inc. — DNS, edge hosting (Cloudflare Pages), and cookieless web analytics. Privacy policy.
- Google LLC (AdSense) — ad serving, subject to your consent in regions that require it. Privacy policy.
Your rights as a data subject
Depending on where you live, you have rights under laws including the EU’s GDPR, Brazil’s LGPD (Art. 18), the California CCPA/CPRA, and similar regulations.
Under Brazil’s LGPD (Art. 18), you have the right to obtain from us:
- Confirmation that we are processing your personal data (inciso I).
- Access to the data we hold about you (inciso II).
- Correction of incomplete, inaccurate, or outdated data (inciso III).
- Anonymization, blocking, or deletion of unnecessary or excessive data, or data processed in violation of the LGPD (inciso IV).
- Portability of your data to another service provider, subject to ANPD regulation and commercial / industrial secrets (inciso V).
- Deletion of data processed under your consent, except for the cases the LGPD itself allows retention (inciso VI).
- Information about the public and private entities with whom we have shared your data (inciso VII).
- Information about the possibility of not providing consent and the consequences of that refusal (inciso VIII).
- Revocation of consent at any time (inciso IX).
To exercise any of these rights, email [email protected]. Under the small-scale processing regime of Resolução CD/ANPD nº 2/2022 (Art. 14, I), our maximum response time is 30 days, we aim to respond within 5 business days.
Because our service design holds essentially no personal data tied to you (no accounts, no persistent identifiers, no logged tool input), most of these rights are satisfied by the design itself. If you would like written confirmation that no data is held about you, email the address above.
Right to complain to the supervisory authority
In Brazil, you may also file a complaint with the Autoridade Nacional de Proteção de Dados (ANPD) at gov.br/anpd. In the EU, contact your national data-protection authority.
Children and adolescents
The LGPD defines a child as a person up to 12 years of age (complete) and an adolescent as 12 through 17 (Art. 14). AI Tool Sage is a general-audience tool and is not directed at children.
Processing data of a child requires specific and prominent consent by at least one parent or legal guardian (Art. 14 §1), and given that our service is not directed at children and does not request identifying information from any user, we do not knowingly collect children’s personal data through normal use. If you become aware that a child has submitted personal information through the site, contact [email protected] and we will delete it.
Changes to this policy
If we make material changes, for example, when the Pro tier launches, or when we add a new tool that changes the data flow, we will update the “Last updated” date below and, where appropriate, post a notice on the home page.
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Questions about this policy or about how AI Tool Sage handles data? Email [email protected]. We aim to respond within 5 business days, the maximum legal response time under the LGPD small-scale processing regime is 30 days.
Controller: Guilherme Campos. Brazil, [email protected] Last updated: 2026-05-15