Simple Mass Downloader is a free Chrome extension for desktop Chrome that batch-downloads images, PDFs, documents, and audio/video links. Scan a page, open tabs, or a URL list, then search and filter by type, extension, URL, or link text. Preview images, then save as separate files, one ZIP, or to a chosen folder. It includes up to three automatic retries, completion checks, and clear failure reasons, and it does not bypass DRM, logins, or paywalls. The free plan includes 300 download credits and no account is needed.