What Is Cloudflare R2?
Cloudflare R2 is S3-compatible object storage in Cloudflare's developer platform. OurClone can connect R2 for cloud transfer, sync, encrypted backup repositories, and mounted access.
Official website: https://www.cloudflare.com/developer-platform/products/r2/
- Good for developers and teams already using Cloudflare.
- Uses R2 API tokens and an account-specific endpoint.
- Useful for backups, archives, and moving assets between S3-compatible storage and cloud drives.
What OurClone Supports for Cloudflare R2
| Operation | How it works in OurClone |
|---|---|
| Sync | Keep a folder on Cloudflare R2 synchronized with another cloud storage account or a local folder. OurClone compares file changes and updates only what needs to change. |
| Transfer | Copy or move files between Cloudflare R2, your Mac, and other connected cloud providers. Transfers run through your local computer, so you stay in control of the data path. |
| Backup | Create an encrypted backup repository on Cloudflare R2, then save snapshots of local folders. Later snapshots are incremental, so unchanged files do not need to be uploaded again. |
| Mount | Mount Cloudflare R2 as a local directory in macOS or Windows, then browse and manage remote files from the operating system file manager. |
Cloudflare R2 Upload and Download Limits
These limits come from the storage provider or protocol, not from OurClone. OurClone still has to respect provider file-size caps, API quotas, bandwidth rules, account storage quota, and server-side throttling.
| Upload limits | Cloudflare R2 lists a 5 GiB single-part upload limit and a multipart maximum of 4.995 TiB. Object size is also listed as 4.995 TiB. |
| Download limits | R2 downloads are subject to object size, request rate, and endpoint behavior. Cloudflare notes that public r2.dev endpoints have variable rate limits and possible throughput throttling. |
| OurClone tip | For production OurClone downloads from R2, prefer a custom domain or normal authenticated endpoint instead of relying on r2.dev test access. |
Source: Cloudflare R2 limits
How to Add Cloudflare R2 in OurClone
Cloudflare R2 connects through S3-compatible access keys in OurClone.
- Sign in to the Cloudflare R2 console.
- Create or locate an Access Key ID and Secret Access Key for the bucket you want OurClone to use.
- Enter the account-specific endpoint in the format https://
.r2.cloudflarestorage.com. - Open OurClone, click Add Storage, select Cloudflare R2, enter the credentials, and connect.
Sync and Transfer Workflow
After Cloudflare R2 is connected, open the Migrate area in OurClone. Choose Cloudflare R2 as the source or destination, select the folders you want to work with, then choose the task mode.
- Copy duplicates files while keeping the source unchanged.
- Move transfers files and removes them from the source after completion.
- Sync keeps the destination aligned with the source folder.
Task progress is visible in the Task tab, including completed, skipped, and failed files.
Backup Workflow
For backups, first create a backup repository on Cloudflare R2. A repository needs a name, a storage path, and an encryption password. Keep this password safe because it is required for both future snapshots and restores.
- Open Backup and create or choose a repository on Cloudflare R2.
- Open the repository and click New Backup.
- Select local folders such as
~/Documents,~/Pictures, or a project folder. - Start the snapshot. The first run uploads the full selection; later runs are incremental.
- Use Restore from a backup record when you need to recover files to a local directory.
Mount Cloudflare R2 as a Local Folder
OurClone can mount Cloudflare R2 as a local operating-system directory. This is useful when you want to browse cloud files in Finder or File Explorer, open files from desktop apps, or copy files with the same habits you use for local folders.
- Open the mount area in OurClone and select your connected Cloudflare R2 account.
- Choose the remote path you want to expose locally.
- Pick a local mount point, then start the mount.
- When finished, unmount cleanly from OurClone before disconnecting your network or shutting down.
Best Practices for Cloudflare R2
- Use a clear folder naming convention such as
/ourclone-backups,/sync, or/archive. - Confirm that your Cloudflare R2 account has enough storage before running a large migration or backup.
- Run a small test sync or restore before relying on a new workflow for important files.
- For large first-time jobs, keep your computer awake and connected to a stable network.
- If authentication fails later, reconnect the account or refresh the token before restarting the task.