10 Best Unlimited Cloud Storage of 2026

Backblaze Personal Backup is the most direct answer to the search for unlimited cloud storage. For $9 a month per computer it backs up all user-generated data on a Mac or PC and on connected external drives, with no restrictions on file type or size. The app is native to Mac and Windows and runs in the background once installed, so there is little to configure. Restores are where it stands out for heavy users: you can download from the web in zip files of up to 500 GB per request, use the iOS and Android apps, or order an encrypted USB drive that is refunded when you send it back within 30 days. Security covers two-factor sign-in and an optional private encryption key. The limits are clear. It is a backup, not a sync drive, so you cannot work from shared folders, and each computer needs its own license. Longer version history costs extra.

Sync.com Personal Unlimited is the rare consumer sync plan that publishes no storage cap. Sync.com says the plan has no cloud storage capacity limit and keeps files in private, end-to-end encrypted storage, with access on desktop, mobile and the web. For heavy users who share large files, data transfer on links is unlimited, and links can carry a password, an expiry date and download controls. File recovery runs for 365 days, which covers most accidental deletions and ransomware scares. There are two catches in the terms. Full upload speeds apply up to 10 TB of total account storage, and Sync.com says upload speed management may apply after that, while downloads stay at full speed. Existing customers can only switch to the plan if they currently store less than 10 TB. Price is the other hurdle: $33.75 a month billed annually in the first year, rising to $45 a month, which is several times what Backblaze charges for backup.

IDrive Personal is the best fit for heavy users who would rather pay for a large fixed quota than accept the conditions that come with unlimited plans. Personal plans run from 5 TB to 100 TB, and one user can back up multiple computers on a single plan, which beats per-computer pricing for a household with several machines. The first-year price for 5 TB is $6.99 a month against a regular $9.99, and the 100 TB tier is $69.99 a month in the first year. IDrive also offers a free 10 GB Basic plan, Cloud Drive sync across linked devices, and IDrive Express, which ships temporary storage devices to back up or retrieve bulk data within a week. The downside is that the quota is real. If you go past your plan, IDrive says there may be an overuse charge of $0.25 per GB per month on Personal plans, so you need to upgrade in time. The pricing page also lists Mini, Personal, Team and Business plans side by side, which takes some reading.

Box Business Plus is the strongest unlimited option for teams. Box lists unlimited storage on all of its Business and Enterprise plans, and Business Plus adds unlimited external collaborators, so clients and freelancers can work in shared folders without paid seats. The single file upload limit is 15 GB, up from 5 GB on the entry Business plan, and rises to 50 GB on Enterprise and 150 GB on Enterprise Plus, which matters for teams that move raw video. Business Plus also includes Box AI, unlimited e-sign requests, advanced admin controls, SOC 1, 2 and 3 compliance support and more than 1,500 integrations. The trade-offs are structural: every plan needs at least 3 users, so it is not a fit for one person, and the page we saw from our location showed euro prices only, so we have marked the USD price as pending. For a solo user, Sync.com Personal Unlimited is the closer match.

CrashPlan is the unlimited backup choice for small businesses rather than individuals. Its small business endpoint plan costs $7.33 per user per month billed annually at $88, or $158 every two years, and includes unlimited cloud storage and unlimited versioning on Windows, macOS and Linux. Unlimited versioning is a meaningful difference: CrashPlan describes retention as a policy setting with unlimited restores in the base price, so recovering an older copy after ransomware or a bad edit does not cost extra. Employees can restore files and migrate to a new device without filing an IT ticket. The same account can add server backup and Microsoft 365 or Google Workspace backup, though those are priced separately and server storage is pooled at 250 GB per server. The trial runs 14 days. It is not a sync service, so teams still need a shared drive such as Box or Google Workspace for day-to-day work.

Dropbox Advanced is sold to teams of three or more and starts at 15 TB of storage for the team. That is still a large shared pool, and Dropbox's sync remains one of the most familiar for creative teams. Advanced keeps a full year of version history and deleted file recovery, sends transfers of up to 100 GB, and adds end-to-end encryption, advanced key management, ransomware detection and recovery, tiered admin roles, single sign-on and audit logs with file event tracking. Video teams get transcripts, captions, commenting and review through Dropbox Replay. For heavy users the questions are cost and the cap. Every seat is paid, there is a 3 user minimum, and 15 TB is a starting quota rather than unlimited space. The pricing page we saw showed euros only, so the USD price is marked pending. Teams that only need storage will spend less on Box Business Plus.

Google Workspace is not marketed as unlimited, but its pooled storage model gets close for organizations. Storage is pooled across users, so a video editor can use space that the accounting team leaves empty. Business Standard includes 2 TB per user, Business Plus and Enterprise Plus include 5 TB, and Google's pricing page lists Enterprise as 5 TB per user with the ability to request more. That makes it a practical choice for companies that already run on Gmail, Docs and Meet, since storage arrives with the tools they use daily. Business Plus also adds Vault for retention and eDiscovery. There are limits. Going beyond 5 TB per user means an Enterprise plan through sales, Business Starter only has 30 GB per user, and the pricing page we saw from our location showed zloty, so we have marked the USD price as pending. Individuals are better served by Backblaze or Sync.com.

MEGA Pro Flexi is MEGA's answer to unlimited storage: instead of a cap, you pay a base fee for 3 TB of storage and 3 TB of transfer, then pay per extra terabyte for whichever of storage or transfer you use more. MEGA describes it with the line get unlimited storage and pay as you grow, and says it offers its cheapest price per TB for people who want to store more than 20 TB, which is where its fixed Pro plans stop. Everything is end-to-end encrypted, and paid plans add MEGA VPN, the MEGA Pass password manager and encrypted chat and meetings with no time limit. The model suits people whose archive keeps growing and who would rather not migrate between plan tiers. The downsides are cost predictability, since a busy month of sharing can raise the bill through the transfer quota, and currency: MEGA states it charges in euros for all transactions, so we have marked the USD price as pending.

Icedrive is a lower-cost route to several terabytes with encryption included. Pro plans come in 2 TB, 5 TB and 10 TB sizes, and the 2 TB plan lists client-side, zero-knowledge encryption, 90 days of file versioning, unlimited desktop sync devices and a 1 TB monthly public share quota. The first-year price for Pro 2 TB is $6.29 a month, billed as $75.52 for the year, against a normal $8.99. Icedrive also still sells one-time lifetime plans, and a free 10 GB account lets you try the apps before paying, with a 30-day money-back guarantee on paid plans. For this list its limits are clear: 10 TB is the ceiling, the share quota can bite if you distribute large files, and the discount is for the first year only. It suits someone who has outgrown 2 TB elsewhere but does not need unlimited space or business features.

pCloud is on this list for buyers who want a very large drive without a monthly bill. Its App Store listing says you can expand up to 10 TB of storage with monthly, annual or lifetime plans, and pCloud lets you pick whether files live in Europe or the USA. It accepts files of any size, which helps with long video recordings, and starts with up to 10 GB free. In the US App Store, in-app plans start at $4.99 a month and the Ultra 10TB plan is $29.99 a month; lifetime plans are sold on pcloud.com, where we only saw prices outside USD from our location. The ceiling is the main limit: 10 TB is generous but finite, so it is not a fit for people with 20 TB archives. Client-side encryption is a separate pCloud Encryption purchase rather than the default. For a backup that never fills up, Backblaze is cheaper.