Your own storage on Cloudflare R2

If you have a Cloudflare account, you can keep your books in an R2 bucket (Cloudflare's file storage) and use it as a library in Kevra. Unlike Dropbox or Drive, with R2 Kevra can also upload books, if the key you give it allows it.

Plus plan: connecting R2 needs the Plus plan.

What you need from Cloudflare

In the Cloudflare dashboard, under R2:

1. Create a bucket (or use one you already have) and upload your books.
2. Create an R2 API token for that bucket. Read permission is enough to read; to upload from Kevra, give it write permission too.
3. Note down the Access Key ID, the Secret Access Key and your account's endpoint, which looks like this: https://<accountid>.r2.cloudflarestorage.com.

How to connect it in Kevra

1. In the Library tab, tap the name at the top to open Your libraries and, at the bottom, Add a library.
2. On Remote library, tap Add a library → Add R2.
3. Fill in Name, Endpoint, Bucket, Access Key ID and Secret Access Key.
4. If your books are in a folder inside the bucket, type it in Folder (optional) (for example, epubs/). Leave it empty to use the whole bucket.
5. Tap Test and save. Kevra checks it can get in before saving.
6. Open the library and tap Sync now.

Your credentials are stored encrypted on our server. Books don't go through Kevra: they download straight from your bucket to your device. More in Cloud libraries.

Uploading books to your R2

With a key that has write permission, long-press a book in your library → Save a copy → Upload to my R2. If the key is read-only, Kevra will tell you.

Audiobooks aren't uploaded: they're too big.

Common questions

• Can I use another S3-compatible service (Backblaze, Wasabi, AWS…)? Kevra is built for Cloudflare R2. Other services aren't tested or supported for now.
• Can I choose folders like in Dropbox? R2 doesn't have Choose folders: the equivalent is the Folder (optional) you set when connecting it.
• Can I share my R2 with someone? Yes, like any cloud library. See Sharing a library.