JSON Privacy Policy
Effective: September 30, 2026
SSEM DEV, an independent developer (“the developer”, “we”), operates the browser extension JSON Editor (distributed on the Chrome Web Store and Firefox Add-ons; “the extension”) and its information website (https://levelupsoft.com/ext-ssem-json-editor/en/; “the website”), and complies with the Personal Information Protection Act of Korea and other applicable laws. This policy explains what information the extension and the website handle, and how.
In short: the extension collects no personal information and sends nothing to us. The JSON you edit and your settings are stored only in your browser, and we have no access to them. Your browser contacts another server only when you ask it to load a web address yourself.
1. Information we collect
We collect no personal information through the extension.
- There is no sign-up or login.
- There are no analytics, advertising, tracking or crash-reporting tools.
- The JSON you edit, the files you open and the pages you visit are never sent to us.
- We do not run any server connected to the extension.
2. Information stored only in your browser
To work, the extension keeps the following only in your browser’s storage for the extension. We never receive or see it.
| Information | Purpose |
|---|---|
| The last JSON document you edited, and its name | Pick up where you left off when you reopen the editor |
| The JSON Schema addresses you added, and the selected schema | Schema validation |
| Indentation, divider position, dark-mode choice, whether a notice was dismissed | Keep your view settings |
An editor opened in a Chrome Incognito window uses storage separate from normal windows, which is cleared when you close all Incognito windows.
3. Extension permissions
- Storage: to keep the information in section 2 inside your browser.
- Optional site access (Chrome version only): when you load JSON with Open url or a schema address, the browser asks you to allow access to that one site. If you don’t, nothing is loaded. The extension does not read or change the web pages you visit.
- The Firefox version uses the storage permission only and declares to Firefox that it collects no data.
4. Network requests you initiate
- Open url and loading schemas: your browser sends the request directly to the address you entered. As with any web request, that server may receive your IP address and browser information, and it handles them under its own operator’s policy. These requests do not pass through us.
- The Save online menu: left over from the original open-source project. We do not run a server for it, and no document is stored with or sent to us through it. To avoid confusion, we plan to remove it in the next update. Use Save to disk to keep your documents.
- The extension makes no other network requests on its own. Updates are handled by your browser through the Chrome Web Store and Firefox Add-ons.
5. The website
- The website uses no cookies, analytics, ads, external fonts or external scripts.
- The website is served from the web server at levelupsoft.com. For security and operations (troubleshooting, blocking abusive traffic), the web server (including the front proxy) automatically keeps access logs containing your IP address, the date and time, the requested address, and the response status and size. Depending on the server configuration, the referring page (Referer) and your browser type (User-Agent) may also be logged. No cookies are used, so none are logged.
- Legal basis: Article 15(1)(6) of the Personal Information Protection Act (legitimate interest in service security and troubleshooting). No consent is required.
- The store buttons take you to the Chrome Web Store or Firefox Add-ons, where Google’s and Mozilla’s privacy policies apply.
6. When you contact us
If you email us, we process your email address, your name (if given) and your message to reply. We use them for nothing other than answering and keeping a record of the inquiry. Please don’t send JSON that contains personal information or secrets.
Legal basis: Article 15(1)(4) of the Personal Information Protection Act (acting on the data subject’s request). No consent is required.
7. Third parties, processors and transfers abroad
We do not provide or sell personal information to third parties, except where the law requires disclosure. Since the extension sends nothing to us, nothing is provided, outsourced or transferred abroad through it.
Emails you send us are received and stored by the following email service (outsourced processing and transfer abroad):
| Recipient | Google LLC (Gmail), 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA · https://support.google.com/policies/ |
|---|---|
| Items | Email address, name (if given), message |
| Countries | The United States and other countries where Google has data centers |
| When and how | Transmitted over the network when your email is received |
| Purpose | Receiving and storing inquiry emails |
| Retention | Same as inquiry information in section 8 |
| How to refuse, and the effect | Simply don’t contact us by email. You won’t get a reply, but it doesn’t affect your use of the extension. |
The extension is distributed through the Chrome Web Store (Google) and Firefox Add-ons (Mozilla). Information involved in installing and updating is handled by each store under its own policy; we only see the aggregate statistics the stores provide (such as install counts).
8. Retention and deletion
- Extension data: we hold none. Uninstalling the extension deletes the document and settings stored in your browser. Clicking New in the editor replaces the previous document.
- Web server access logs: kept for one year from collection, then deleted.
- Inquiries: kept for one year after the inquiry is resolved, then deleted.
- Information past its retention period is deleted without delay.
9. Your rights
You may ask to access, correct, delete or stop the processing of personal information we hold about you (such as inquiries). Email the privacy officer below and we will act on your request and let you know the result within 10 days. You may also make a request through a legal representative or an authorized agent; in that case, please include a power of attorney. You can view, change and delete the information stored in your browser yourself.
10. Security measures
- Extension: minimum permissions (site access only on your request, one site at a time), a Content Security Policy that prevents loading external scripts, no analytics or tracking code.
- Distribution: through the review processes of the Chrome Web Store and Firefox Add-ons.
- Website and inquiries: restricted access, only the minimum information needed.
11. Children
The extension collects no one’s personal information, including children’s. The website and email inquiries are handled as described in sections 5 and 6. If we learn that a child under 14 contacted us without a legal guardian’s consent, we delete that information without delay.
12. Privacy officer
| Operator | SSEM DEV (independent developer) |
|---|---|
| Privacy officer | SSEM DEV (individual developer) |
| ssemiya.k@gmail.com |
You can also report or seek advice about privacy violations to the Personal Information Infringement Report Center (118, privacy.kisa.or.kr), the Personal Information Dispute Mediation Committee (1833-6972, www.kopico.go.kr), the Supreme Prosecutors’ Office (1301) or the Korean National Police Agency (182).
13. Changes to this policy
If we change this policy, we will post the changes and the effective date on this page. If the way the extension handles information changes (for example, a new network feature), we will announce it before releasing that version.
Previous versions: none (first version)