Web Gallery Downloader Tips: Maximize Speed and Avoid Duplicates

Web Gallery Downloader Tips: Maximize Speed and Avoid Duplicates

Speed — quick wins

1. Increase concurrent connections: Raise the app’s simultaneous download threads (start with 8–16).
2. Use a wired or high-bandwidth connection: Prefer Ethernet or a reliable 5GHz Wi‑Fi network.
3. Enable resume/retry: Turn on automatic resume and retries to avoid restarting large files.
4. Download during off-peak hours: Schedule large jobs at night or early morning to reduce server throttling.
5. Limit per-site rate if needed: If the site throttles, set a moderate delay between requests rather than many retries.
6. Choose largest direct image links: When options exist, pick full-resolution URLs (avoids extra requests for thumbnails).
7. Use a download queue: Batch galleries into a queue so the tool runs continuously without manual restarts.

Avoiding duplicates

1. Enable filename generation with numbering: Use a consistent prefix + numbered suffix to prevent name clashes.
2. Use checksum or hash checks: If the tool supports MD5/SHA checks, enable it to detect identical files with different names.
3. Skip existing files: Turn on “skip if file exists” or “compare timestamp/size” before downloading.
4. Normalize URLs: Enable or use settings that ignore tracking/query strings (e.g., ?size=large) when they don’t change content.
5. Deduplicate by dimensions: If the program can, prefer images by resolution and skip smaller duplicates.
6. Export/compare gallery lists: For large repeated crawls, export previously downloaded URL lists and filter new jobs against them.

Configuration checklist (apply these together)

• Set threads = 8–16
• Enable resume + retries (3–5 tries)
• Turn on “skip if exists” and filename numbering
• Enable checksum/hash dedupe if available
• Use download queue and schedule off-peak runs
• Strip/ignore irrelevant query parameters in URLs

Troubleshooting common issues

• Slow downloads despite settings: reduce threads (server-side throttling), add small delays per request.
• Still getting duplicates: enable checksum/hash checks or export URL list and filter manually.
• Incomplete galleries: increase scan depth or enable browser integration to capture dynamically loaded images.

If you want, I can generate exact settings for a specific Web Gallery Downloader app (name/version) or a short step-by-step config for Bulk Image Downloader.