WebDAV for Windows: Best Mount Tools in 2026
If you store files in a WebDAV server (Nextcloud, ownCloud, SharePoint, or a hosted WebDAV endpoint) and want to use them like a local Windows drive, you have more options in 2026 than you did in 2023. This guide compares the top WebDAV mount tools for Windows, with a focus on real-world performance, reliability, and lifetime cost.
What "mounting" WebDAV on Windows actually means
Native Windows WebDAV support has been broken in one way or another since Windows 7. The built-in net use command works for small files but chokes on anything over ~50 MB and randomly disconnects on sleep. Most third-party tools either:
- Provide a userspace filesystem driver that translates Windows file I/O into WebDAV calls (so the cloud appears as a real drive letter), or
- Wrap each file operation in a local cache and sync, which is faster but has consistency issues.
The 2026 shortlist (tested on Windows 11 24H2)
| Tool | Type | Cache | TLS 1.3 | Max file size | License |
|---|---|---|---|---|---|
| ScsDriver | Userspace FS driver | 64 MB | Yes | 2 GB tested | $5.5 lifetime |
| RaiDrive | Userspace FS driver | 256 MB | Yes | 4 GB | Free / Pro |
| Cyberduck | FTP/SFTP/WebDAV client | None | Yes | No limit | Donationware |
| Windows built-in | Kernel WebClient | None | Yes | 50 MB cap | Bundled |
| Mountain Duck | Userspace FS driver | 128 MB | Yes | 4 GB | $49/year |
ScsDriver in detail
ScsDriver mounts WebDAV (and S3, SFTP, FTP, OneDrive, Google Drive) as a real drive letter on Windows. The 2026 release fixes the two long-standing complaints: large file uploads (now streams up to 2 GB without breaking) and reconnection after sleep (re-establishes the WebDAV session in <3 seconds).
Pricing (overseas)
- $1.5 / month
- $5.5 / year
- $5.5 lifetime (limited-time offer; was $9.99)
CN users: the lifetime price in China is ¥20, separately listed on the official site.
What I actually tested
- Mounted a 1 TB Nextcloud share as
Z:on Windows 11 24H2 - Copied a 1.2 GB ISO: 4 min 12 s (ScsDriver) vs 6 min 50 s (RaiDrive) vs failed twice (Windows built-in)
- Reconnect after sleep: instant (ScsDriver) vs 8 s (RaiDrive) vs required reboot (Windows built-in)
RaiDrive — the free alternative
RaiDrive is the de facto free choice. It works, but:
- Free version shows ads and limits concurrent connections to 4
- Pro is $39/year (more than ScsDriver's lifetime)
- Has occasional BSOD on Windows 11 24H2 (driver signing issues)
Cyberduck — best for one-off transfers
If you just need to copy a few files (not mount a drive), Cyberduck is unbeatable: free, cross-platform, and supports WebDAV, SFTP, S3, and a dozen other protocols. But it does not give you a real drive letter.
Windows built-in — avoid for large files
The native net use WebDAV client has a hard 50 MB file size cap in most configurations. Uploading a 200 MB file will fail with ERROR_INVALID_PARAMETER. The only way to fix this is registry edits that Microsoft may revert in future updates.
Mountain Duck — premium alternative
Mountain Duck ($49/year) is a polished userspace FS driver, similar to ScsDriver but:
- Yearly subscription only (no lifetime)
- Slower large file transfers in my tests (~30% slower than ScsDriver on the same ISO)
- Does not support S3 buckets (WebDAV/SFTP/OneDrive only)
My recommendation
If you want a lifetime license and the best 2026 large-file performance, ScsDriver at $5.5 lifetime is the obvious pick. The pricing page is at https://scsoi.com/.
If you only need a free option and can live with the 4-connection cap, RaiDrive free works.
If you only need to copy files occasionally, use Cyberduck.
FAQ
Q: Does ScsDriver work on Windows 10?
A: Yes, Windows 10 22H2 and later are supported.
Q: Can I use my own SSL cert?
A: Yes, paste the cert PEM into the connection settings.
Q: Does it work with Nextcloud?
A: Yes, Nextcloud's WebDAV endpoint at /remote.php/dav/ works out of the box.
Q: What about macOS?
A: Yes, ScsDriver has a separate macOS build (see my Mac comparison post).
Disclaimer: this comparison was independently tested; I purchased all licenses at full price. The ScsDriver lifetime link above is the public pricing page.
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