Dropbox Upload Speed Slow
Workaround available Windows, macOS Updated October 21, 2026
Quick answer
Slow Dropbox uploads are often caused by the desktop app's bandwidth limit, many small files, or antivirus scanning. Set Upload rate to Don't limit, batch small files into archives, and exclude Dropbox from scanners.
Most likely fix: Remove the upload limit.
Symptoms
Uploads crawl at a fraction of your internet speed, large folders take days, or the remaining-time estimate keeps climbing.
Why it happens
- Upload rate limited automatically by the desktop app
- Thousands of small files
- Antivirus scanning each file
- Wi-Fi or network congestion
How to fix it
Try these in order — the most common fix is first.
1. Remove the upload limit
- Windows: Dropbox icon > avatar > Preferences > Bandwidth > Upload rate > Don't limit
- Mac: Preferences > Network > Custom bandwidth, then adjust or turn off limits
2. Zip folders of many small files
- Compress folders with thousands of small files before uploading
3. Exclude the Dropbox folder from antivirus
- Add the Dropbox folder to your antivirus exclusions
4. Use a wired connection
- Plug in Ethernet for large initial uploads
This guide also covers
- dropbox upload slow
- why is dropbox so slow
- dropbox slow upload speed
- speed up dropbox upload
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