Skip to content

Bulk Image Downloader Troubleshooting — Bulk Image Downloader Pro

danito

Most bulk image downloader troubleshooting starts with one question: did the problem happen while finding images, preparing the URL list, or downloading the files? In Bulk Image Downloader Pro, those stages happen in different places. The side panel is for scanning and collecting image URLs. The options page is for download tasks, ZIP output, filenames, processing, queueing, and scheduling.

Images are missing after a page scan

If a page appears full of images but the scan returns only a few, the page may be loading images after the first page render. Try Deep Scan for lazy-loaded or AJAX content, scroll the page so hidden images load, or use Continuous Scanning when new images appear over time.

Also check filters before assuming the scan failed. A strict width, height, file type, aspect ratio, text, or domain filter can hide valid images. Clear the filters, scan again, then narrow the list after you know the images were found.

The page cannot be scanned

Some pages restrict scripting, require login, block automated access, or serve images only in specific contexts. Reload the tab, confirm the extension has permission to run on the site, and try scanning again. If the page uses pagination, use the pagination controls or scrape from a controlled list of page URLs with a delay between pages.

There are limits to what any Chrome extension can do. A tool should not be expected to bypass paywalls, private pages, hotlink protection, site terms, or copyright restrictions. If a website refuses access, the correct fix may be permission from the source, not another setting.

The URL list contains broken or misleading links

Old image lists often contain dead files, redirects, tracking URLs, or duplicate entries. Use Strip Duplicates for repeated URLs. Use the Image URL 404 Checker to find broken image links before a large download. Use the redirect checker when a URL points through a CDN, shortener, or tracking path and you need to know the final destination.

If the same photo appears under several different URLs, exact URL deduplication will not catch every case. Use the Perceptual Duplicate Finder when visual duplicates matter.

Downloads fail, stall, or arrive incomplete

Start by lowering the parallel download count. More parallel downloads can be faster, but too many requests can stress Chrome or trigger server limits. For sensitive sources, use fewer parallel downloads or run tasks sequentially with Queued Download.

Next, check the task settings. File type filters and Download If URL rules can exclude files if they are too strict. Folder and filename settings can also cause confusing output if the filename pattern is empty, too generic, or not matched to the URL list.

ZIP, filenames, or folders do not look right

ZIP output is usually best for large batches, but the final archive is only as organized as the task settings. Check the task folder, domain folder option, URL fragment folders, and Filename Constructor before running the batch. If files need to match product SKUs or a spreadsheet, use a custom filename list rather than relying on random source filenames.

Resize, convert, EXIF, or watermark settings are confusing

Processing happens on the options page, not in the side panel. Resize and convert are separate modes: choose resize when dimensions matter, and choose convert when output format matters. Supported processed output is JPEG, WebP, or PNG. Canvas re-encoding can remove metadata, and the Strip EXIF option is useful when metadata cleanup is part of the task.

Watermarking uses the configured PNG watermark settings. If watermark output is not what you expected, check the watermark image, opacity, gravity position, margin, and max size before running a large batch.

Scheduled tasks did not run

Scheduled tasks rely on Chrome. The browser needs to be open when the scheduled time arrives. Also check that the task is actually scheduled, that Queued Download is not changing how tasks run, and that the task was saved after the time was set.

A reliable troubleshooting order

  1. Confirm whether the problem is scanning, URL cleanup, or downloading.
  2. Clear filters and scan again.
  3. Use Deep Scan or pagination if the page loads images dynamically.
  4. Run duplicate, 404, and redirect checks on old URL lists.
  5. Lower parallel downloads or switch to queued mode for fragile sources.
  6. Check ZIP, folder, filename, and processing settings before the final run.

If you are new to the workflow, read the Bulk Image Downloader Pro guide. For direct URL-list jobs, see how to bulk download images from a URL list.