Bulk Downloader

What does this tool do?

Bulk File Downloader is designed to eliminate the need to download files individually. It takes a list of direct URLs provided by the user, fetches the content of each file via a proxy server to bypass CORS (Cross-Origin Resource Sharing) restrictions, and aggregates them into a compressed ZIP archive.

How it works

1. Paste URLs into the textarea, one per line.
2. Click Download All.
3. The tool contacts each URL through a proxy, validates the files and stores them in the browser.
4. Progress and results are shown in real time.

Limitations

• File size limit: Each file is capped at 50MB. Larger files are rejected.
• Allowed file types: Only common documents, images, archives, audio, and video formats are supported.
• Sequential downloads: Files download one at a time to respect browser limits and avoid triggering download blockers.
• Rate limiting: Requests are throttled to prevent abuse of the proxy endpoint.
• Remote availability: Files must be publicly accessible. Password-protected or private resources will fail.

Supported file types

• Documents: PDF, Word, Excel, PowerPoint, plain text, CSV, JSON, XML
• Images: PNG, JPEG, GIF, WebP, SVG, BMP, TIFF
• Archives: ZIP, RAR, GZIP, 7Z
• Media: MP4, WebM, MP3, WAV

Why the proxy?

Direct downloads from third-party URLs often fail due to CORS restrictions or the download attribute being ignored on cross-origin links. The proxy fetches the file server-side and streams it back, bypassing these browser limitations.

Tips

• Use direct links to files. HTML pages will download as .html files.
• Keep the tab open while downloads run. Closing it cancels pending downloads.
• If a download fails, check the URL and try again individually.