In short
- Querify is a desktop application that runs entirely on your computer.
- We do not require an account, and we do not run any server that collects your data.
- We collect no analytics, telemetry, usage tracking, or crash reports.
- Your connection details, passwords, queries, and history stay on your device, with credentials encrypted by Windows.
- Data only leaves your machine when you choose to: when Querify connects to a database you configured, when you use the optional AI features (which send data to the AI provider you set up), or when the app checks for updates.
This Privacy Policy explains how Querify ("Querify", "the app", "we", "us", or "our"), a desktop SQL client developed by HungHD, handles information. It applies to the Querify desktop application for Windows and to the website at querify.hunghd.io.vn. Please read it carefully. By installing or using Querify, you agree to the practices described here.
Who we are
Querify is an independent desktop SQL and key-value client. It connects to databases that you configure (MySQL, MariaDB, PostgreSQL, SQL Server, SQLite, and Redis) and offers an optional AI assistant that helps you write and run queries. Querify is a self-contained application: there is no Querify online account, no Querify cloud service, and no Querify-operated backend that stores or processes your data.
Information we do not collect
We want to be explicit about this because it is the most important point:
- No account or sign-up. You do not create an account or provide us any personal details to use Querify.
- No telemetry or analytics. The app does not contain analytics, usage-tracking, advertising, or fingerprinting SDKs. We do not record which features you use, what queries you run, or how often you open the app.
- No automatic crash reporting. The app does not silently transmit crash dumps, logs, or diagnostics to us.
- No collection of your database contents. We never receive, store, or have access to the data inside the databases you connect to.
Data stored on your device
To work as a SQL client, Querify saves your settings and working data locally on your computer, under %LocalAppData%\Querify. This information never leaves your device unless you take an action that requires it (see the sections below). It includes:
- Connection profiles — host, port, username, database name, and connection options for the servers you add. Passwords and API keys are encrypted using the Windows Data Protection API (DPAPI), scoped to your Windows user account, so they cannot be read by other users or copied to another machine.
- AI provider settings — the provider, model, and endpoint you configure. Any API key you enter is encrypted on disk with DPAPI.
- Saved queries — SQL files you save, organized per connection and database.
- Query history — a local log of statements executed through the app, so you can review and reuse them.
- App preferences — theme, layout, recently opened files, and other settings.
You are in full control of this data. You can delete it at any time (see Data retention and deletion).
Database connections
When you open a connection, Querify communicates directly from your computer to the database server you specified, using the credentials you provided. This traffic does not pass through us or any third party operated by us. The contents of your databases, your queries, and their results are visible only to you on your machine and to the database server you are connecting to. You are responsible for ensuring you are authorized to access the databases you connect to.
Optional AI features
Querify includes an optional AI assistant that turns natural-language requests into SQL or Redis commands and can help inspect your schema. These features are off until you configure them by adding an AI provider and (where required) an API key.
"Bring your own AI." Querify does not provide its own AI model or proxy. When you use an AI feature, the app sends your request directly to the AI provider you chose, using your own API key or your own self-hosted endpoint. Supported providers include OpenAI, Anthropic, Google Gemini, and any OpenAI-compatible service (for example NVIDIA Build, Groq, DeepSeek, vLLM, Ollama, or LM Studio — including models you run locally).
What is sent to the AI provider
To answer your request, the app may send the following to the provider you configured:
- The prompt / instruction you type and the conversation in the AI panel.
- Database schema metadata relevant to your request — such as database, table, and column names and their data types.
- Small samples of data or query results when the assistant needs them to ground its answer (for example, sample rows, distinct values, or the results of a read-only
SELECT, limited to a small number of rows).
Because this data is sent to a third party that you selected, its handling is governed by that provider's privacy policy and terms, not by us. If you work with sensitive data, please review your chosen provider's policy, or use a local/self-hosted model so that nothing leaves your network. You can disable AI entirely by simply not configuring a provider, and you can delete a configured provider (and its stored key) at any time in Settings.
Automatic updates
To keep you on the latest version, Querify checks for updates by contacting GitHub Releases (the project's release host). This is a standard network request that downloads version information and, when you choose to update, the new application files. As with any web request, GitHub may receive your IP address and basic request metadata; this is handled under GitHub's privacy statement. Querify does not attach any personal information to these requests.
The Querify website
The marketing website at querify.hunghd.io.vn is a static page. It loads fonts and a styling library from public content-delivery networks and fetches the latest version number from the GitHub API. It does not set advertising or tracking cookies. Standard web-server access logs may be kept by the hosting provider for security and operational purposes.
How your data is protected
- Encryption of secrets. Connection passwords and AI API keys are encrypted on disk with the Windows Data Protection API (DPAPI), tied to your Windows user account.
- Local-only by design. Because there is no Querify server, there is no central database of users to breach.
- Your environment. The overall security of your data also depends on your computer and your database servers being kept secure, which is under your control.
No method of electronic storage is perfectly secure, but keeping your data on your own device under your own control is the strongest privacy posture we can offer.
Data retention and deletion
Because all app data is stored locally, you decide how long it is kept. To remove it:
- Delete individual items inside the app (connections, saved queries, history, AI providers).
- To remove everything, uninstall Querify and delete the folder
%LocalAppData%\Querify.
We hold no copy of your data, so there is nothing for us to delete on your behalf.
Children's privacy
Querify is a professional developer tool and is not directed to children. It is not intended for use by anyone under the age of 13 (or the minimum age required in your jurisdiction), and we do not knowingly collect information from children.
Summary of third parties
Querify itself does not share your data with third parties. Data only reaches a third party as a direct result of your own actions:
- Your database servers — when you connect to them.
- The AI provider you configure — when you use AI features. Governed by that provider's policy.
- GitHub — when the app checks for or downloads updates.
Changes to this policy
We may update this Privacy Policy from time to time. When we do, we will revise the "Last updated" date at the top of this page and, for significant changes, note them in the app's changelog. Your continued use of Querify after an update constitutes acceptance of the revised policy.
Contact us
If you have any questions about this Privacy Policy or how Querify handles data, contact us at: