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Privacy Policy — Arrows & Boxes

Version 1.0 — effective 2026-07-17

This policy explains how Rulecore AB handles personal data in connection with the Arrows & Boxes website and application at arrowsboxes.com ("the Software").

The short version: your diagrams never reach us. Arrows & Boxes runs entirely in your browser, there is no account and no cloud, and we do not use cookies, analytics, advertising, or tracking of any kind. The only personal data we are involved with is the connection data your browser unavoidably sends in order to load the page, and anything you choose to put in an e-mail to us.

1. Data controller

Legal name Rulecore AB
Registration number 556895-5669
Postal address Bergåsvägen 1, 433 51 Öjersjö, Sweden
VAT number SE556895566901
E-mail info@rulecore.com

We have not appointed a data protection officer; we are not required to. Privacy questions go to info@rulecore.com.

2. Your diagrams are not personal data we process

Everything you create in Arrows & Boxes — diagrams, text, notes, scripts — is stored on your device, in your browser's storage, and in files you save yourself. It is never transmitted to us, and we have no ability to access, read, or recover it.

This means we are not the controller for the content of your diagrams, even if you put personal data in them. That data stays under your control. If you use Arrows & Boxes to process other people's personal data in a professional capacity, you are the controller for it, and this policy does not cover that processing.

It also means we cannot help you recover lost work. Browser storage can be erased by clearing site data, by private/incognito modes, or by browser and device faults. Use Save/Export to keep your own copies.

3. What we process, why, and on what basis

3.1 Delivering and protecting the website

When your browser loads arrowsboxes.com, it necessarily sends your IP address, and typically your user agent (browser and operating system), the address you requested, and the time of the request. Our hosting provider processes this at the network edge in order to route the response to you and to protect the site against attack and abuse.

3.2 If you contact us

If you e-mail us, we process your e-mail address, your name if you give it, and whatever you choose to write.

4. Storage on your device — and why there is no cookie banner

Arrows & Boxes stores data in your browser (IndexedDB and local storage):

All of this is strictly necessary to provide the service you have explicitly requested, so under Chapter 9, Section 28 of the Swedish Electronic Communications Act (lag (2022:482) om elektronisk kommunikation) it does not require your consent — which is why you are not asked for any.

We set no cookies. We use no analytics, no advertising, no tracking pixels, no fingerprinting, and no third-party scripts of any kind. Nothing stored on your device is ever read by us or sent anywhere. You can erase all of it at any time by clearing this site's data in your browser — that will also delete your diagrams.

5. Who else is involved

Recipient Role What for Where
Cloudflare, Inc. Processor Hosting and delivering the static site; edge security EU edge; US parent
Our e-mail provider Processor Receiving and storing e-mail you send us EU

We have a data processing agreement with each processor. We do not sell personal data, we do not share it for advertising, and we do not disclose it to anyone else except where we are legally required to, or where it is necessary to establish, exercise, or defend a legal claim.

Transfers outside the EU/EEA: our hosting provider is a US company and its group may access data from outside the EU/EEA. Such transfers are covered by the European Commission's Standard Contractual Clauses and, where applicable, the EU–US Data Privacy Framework, together with supplementary technical measures. You may request a copy of the relevant safeguards at info@rulecore.com.

6. Material you fetch from third parties

Arrows & Boxes lets you write scripts that fetch data from addresses you choose. If you do, your browser contacts that third party directly — sending it your IP address and whatever your script sends.

That is a connection between you and that third party, on its terms and its privacy policy. It does not pass through us, we do not see it, and we are not the controller for it. Only fetch from sources you trust.

7. No profiling or automated decisions

We do not profile you, and we make no automated decisions producing legal or similarly significant effects concerning you (Article 22 GDPR).

8. Children

Arrows & Boxes is not directed at children, and we knowingly collect no personal data from them. Because we operate no accounts and collect no data beyond what clause 3 describes, we do not process children's data in practice.

9. Your rights

Under the GDPR you have the right to:

To exercise any of these, e-mail info@rulecore.com. We will respond within one month; we may need to verify your identity first, and we may extend the period by two months where a request is complex, telling you why.

Please note the practical limit: for the processing in clause 3.1 we hold no data that identifies you and retain no logs, so in most cases there is simply nothing for us to retrieve, correct, or erase. We will tell you if that is the case.

Right to complain: if you believe we handle your personal data unlawfully, you may lodge a complaint with the Swedish Authority for Privacy Protection (Integritetsskyddsmyndigheten, IMY), Box 8114, 104 20 Stockholm, imy@imy.se, https://www.imy.se — or with the supervisory authority in your EU/EEA country of residence or workplace.

10. Security

The site is served over HTTPS. It runs no server code, holds no database, and stores no user data on our side — the most effective safeguard being that there is almost nothing to safeguard. On our hosting platform we keep request logging, preview URLs, and the default workers.dev hostname switched off, so the site is reachable only through arrowsboxes.com and no request data is retained there.

11. Changes to this policy

We may update this policy. The version and date at the top identify the current text. Where a change materially affects you, we will give notice in the Software before it takes effect. Previous versions are available on request at info@rulecore.com.

12. Contact

Questions, requests, or complaints about privacy:

Rulecore AB · Bergåsvägen 1, 433 51 Öjersjö, Sweden · info@rulecore.com


Arrows & Boxes is a trademark of Rulecore AB.

See also the End-User License Agreement.