Overview & Commitment
At NextGen Download Manager (NextGen-DLM), we believe that utility software should respect your computer resources and, above all, your absolute privacy. NextGen-DLM is built on a **fully open-source core** written in Rust, utilizing a local Tauri-based frontend architecture.
Unlike traditional proprietary download managers, our utility enforces a **strict Zero-Telemetry, Zero-Cloud, and Local-Only execution model**. We do not operate external trackers, we do not require a login or account registration to use the desktop client or the browser extension, and we never collect, monetize, or transmit your downloads or browsing history.
Data Collection Policy
Our core philosophy is simple: **We cannot sell, share, or lose your data because we never collect it.**
- Personal Data: The desktop app and the extension require no account registration, email addresses, names, or phone numbers.
- Download URLs & Streams: All URL interceptions, media stream sniffing, and file downloads are resolved entirely on your local machine. No download addresses are transmitted to our servers.
- Telemetry & Usage Metrics: There is absolutely no background analytics tracking (such as Google Analytics or custom telemetry trackers) compiled inside the Rust core or the React dashboard.
- Update Checking: When the app queries the server to check for a new stable release (e.g. comparing versions), it performs a direct static fetch to `https://nextgendlm.site/updater.json`. No user identifiers, device details, IP logs, or system specifications are included in this check.
Sandboxing & Named-Pipes
NextGen-DLM uses a secure, local-only architecture designed to enforce host isolation and protect your system.
When you link your browser extension to the desktop app, communication is routed locally using secure, local OS sockets (Named Pipes on Windows, ). This pipeline runs under a **strict local loopback interface** (127.0.0.1) and is encrypted to prevent cross-app interception.
WARNING: Never share your local named-pipe authentication tokens. These tokens are generated securely on application launch and are kept sandboxed inside your OS user directory.
Manifest V3 Integrity
The NextGen-DLM Chrome extension is designed in strict compliance with the **Manifest V3 browser extensions APIs**.
Under Manifest V3 rules:
- We do not download or execute dynamic, unverified remote scripts. 100% of our code is packaged locally and audited upon compilation.
- The
chrome.webRequestAPI hooks operate entirely inside your isolated browser sandboxed background scripts to detect and redirect stream fragments (HLS/M3U8). - Our media sniffer triggers strictly upon active tab interactions (e.g. right-clicking a media element to "Download with NextGen DLM"), ensuring background processes do not read unrelated user activity.
Third-Party Services
When downloading files via NextGen-DLM, you are connecting directly to the remote servers hosting those specific files. The privacy policies of those remote hosts govern your network requests. NextGen-DLM does not intermediate, proxy, or inspect your traffic.
If you enable **Snail Mode** (bandwidth throttling) or configure custom rotating proxies in the settings dashboard, these configurations are saved as local configuration files inside your Tauri storage directory and are never synchronized to any cloud system.
GDPR & CCPA Compliance
Because NextGen-DLM does not collect, log, or store any personal data, there is no database of user records to export, modify, or delete. If you are located in the European Economic Area (EEA) or California (CCPA), you are automatically in full control of your local data.
If you wish to delete all traces of the application, simply run the native Windows uninstaller. This will securely delete the binary and wipe your local configurations directory (%APPDATA%\NextGen-DLM on Windows) entirely from your disk.