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Download accelerator with parallel connections per file and concurrent downloads Download Accelerator speeds up your downloads by splitting files into multiple parts and fetching them simultaneously over parallel connections — similar to IDM or JDownloader, built right into Chrome. KEY FEATURES • Parallel connections — split each file into up to 16 simultaneous connections per download • Multiple concurrent downloads — run several downloads at the same time • Pause & resume — stop and continue any download without losing progress • Real-time progress — per-connection speed lanes, live transfer speed and ETA • Right-click download — "Download with Download Accelerator" on any link • Intercept mode — optionally capture all browser downloads automatically • Custom download folder — choose where files are saved TWO MODES Browser Mode works out of the box — no installation required. Downloads are handled directly in the browser using parallel Range requests. Native Mode (optional) unlocks the full potential: a small native helper app opens true parallel TCP connections over HTTP/1.1, bypassing Chrome's HTTP/2 multiplexing for maximum speed. Supports authenticated downloads by forwarding session cookies. Install it once with a single script on macOS or Windows. OPEN SOURCE Full source code available on GitHub: https://github.com/zettifour/download-accelerator PRIVACY No data is collected, stored remotely, or shared. All settings are saved locally on your device only. VERSION 1.2.2 • Uses the server-provided Content-Disposition filename and filename URL parameters for correct download names. • Browser Mode opens Save As before downloading and streams directly into the selected file. • Context-menu and intercepted downloads now choose their destination before network transfer starts. • Default Download Manager settings persist immediately and also apply to already-open pages. • All settings save automatically, with stale Browser Mode destination prompts cleared when Native Mode connects. • The macOS installer now detects matching unpacked developer extension IDs automatically.
Jul 27, 2026
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