Reference
Limits and expiry times
Every size limit, time limit, and naming rule in quickS3, in one place, from the largest upload to how long a share link can last.
OwnerAdminMemberAI user
These are quickS3’s own limits. Your storage provider has limits too, and the smallest one always applies.
Files
| Limit | Value |
|---|---|
| Largest upload, most providers | About 5 TB |
| Largest upload, Azure | 5 GB |
| Largest upload through the backend upload fallback | 100 MB |
| Largest upload from an AI client | 5 GB |
| Files uploaded in parts | Over 256 MB, on every provider except Azure |
| Time to resume an interrupted upload | 7 days |
| Largest browser download | 1 GB |
| Text preview | First 1 MB of the file |
| Table preview (CSV, TSV) | First 200 rows and 50 columns |
An Owner can also set an Upload size limit on each connection. It applies to Admins and Members, not to Owners.
Links and access
| Limit | Value |
|---|---|
| Share link lifetime | 1 hour to 30 days, 24 hours by default, within your organisation’s maximum |
| File request lifetime | 1 hour to 30 days, 7 days by default, within your organisation’s maximum |
| File request largest file | 100 MB, 1 GB, or 5 GB, 1 GB by default |
| File request total size | 1 GB to 50 GB, 5 GB by default |
| File request number of files | Up to 1,000, 100 by default |
| AI client access | 30, 60, or 90 days, 30 by default |
| AI download link | 5 minutes, works once |
| AI upload link | 15 minutes |
| AI approval page | 10 minutes |
| Audit log | 14 days |
Accounts
| Limit | Value |
|---|---|
| Signed-in session | 30 days |
| Email sign-in link | 15 minutes, works once |
| Email verification link | 24 hours |
| Password reset link | 30 minutes |
| Invitation | 7 days |
| Password length | 10 to 128 characters |
| New organisations | 5 per hour |
Names
| Name | Rules |
|---|---|
| Bucket or container | 3 to 63 characters: lowercase letters, numbers, and hyphens, starting and ending with a letter or number |
| Connection slug | Lowercase letters and hyphens only |
| Folder prefix in a rule | Slashes at either end are ignored; capital letters matter |
Share links can also be created for as little as 5 minutes by AI clients; the web app offers 1 hour and up.