Cloud storage vs Local storage (NAS / HDD)
Side-by-side comparison, when-to-use-each guide, and instant conversion. Reviewed for 2026.
Active files, automatic backup, multiple device access, collaboration.
Large archives (photos, video), privacy-sensitive data, high volume at low ongoing cost.
| Aspect | Cloud storage | Local storage (NAS / HDD) |
|---|---|---|
| Ongoing cost | £2-10/month per person | Hardware only (~£80-500 one-off) |
| Access anywhere | Yes | Only on home network (or VPN) |
| Privacy | Third party holds your data | Fully private |
| Capacity | Usually 1-5 TB (plans) | 4-20 TB easily expandable |
| Backup reliability | Excellent (provider redundancy) | Requires discipline to maintain |
Frequently asked
Is the cloud safe?
Major providers (Apple, Google, Microsoft) have excellent security and redundancy. The main risks are: account compromise (use strong password + 2FA), provider shutdown (unlikely for major services), and privacy (provider can technically access unencrypted data). For truly private data: encrypt before uploading or use local storage.
What is a NAS and should I buy one?
NAS (Network Attached Storage) is a small always-on computer with hard drives attached to your home network — effectively a private cloud. Synology and QNAP are the main UK brands. Setup takes a few hours. If you have 2+ TB of personal data and value privacy, a NAS is a compelling one-off investment vs ongoing cloud subscriptions.
Frequently asked questions
Is the cloud safe?
Major providers (Apple, Google, Microsoft) have excellent security and redundancy. The main risks are: account compromise (use strong password + 2FA), provider shutdown (unlikely for major services), and privacy (provider can technically access unencrypted data). For truly private data: encrypt before uploading or use local storage.
What is a NAS and should I buy one?
NAS (Network Attached Storage) is a small always-on computer with hard drives attached to your home network — effectively a private cloud. Synology and QNAP are the main UK brands. Setup takes a few hours. If you have 2+ TB of personal data and value privacy, a NAS is a compelling one-off investment vs ongoing cloud subscriptions.