hayaku.online
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hayaku.online

Privacy Policy

Last updated: 2026-09-10

This policy explains how hayaku.online (“the Site”) handles information. The operator is Hayaku Online (X: @HayakuOnline).

1. Core principle

Our take-home tax estimator, PDF merge/split, and JSON formatter are designed to run in your browser on your device. We do not upload or store your salary inputs, PDF contents, or JSON text on our servers in order to provide those tools.

2. What we process

2.1 Tool inputs (typically never leave your device)

Annual salary and related tax fields, PDFs, and JSON are processed locally and are not saved on our servers for tool functionality.

2.2 Technical logs

Visiting pages may generate standard server logs (IP address stored as a hash in our stats DB, timestamp, URL, user agent, referrer) for security, abuse prevention, and operations—not to read your tool inputs.

2.3 Cookies / local storage

We may store a language preference (e.g. hayaku_lang). We currently do not use advertising tracking cookies or third-party analytics SDKs. If we later add analytics or ads, we will update this policy and name the providers.

3. How we use information

Operate and secure the Site; respond when you contact us; improve the product using aggregated traffic data. We do not sell personal information.

4. Third parties

Hosting, CDN, or font providers may process technical request data. Client-side libraries (e.g. for PDFs) run on your device and are not a file-upload service.

5. Retention and security

No server-side archive of tool inputs for feature use. Logs follow operational practice with reasonable controls. No method is perfectly secure.

6. Tax disclaimer

Tax results are estimates only and are not for official filing. Consult a tax professional or tax office.

7. Children

The Site is not directed at collecting children’s personal data. If you believe a child contacted us, please reach out via X (@HayakuOnline).

9. Changes

We may update this policy. Last updated: 2026-09-10.

10. Governing law

To the extent permitted by applicable mandatory law, this policy is governed by the laws of the operator’s place of business.

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