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On the recordRead 11 Oct 202618 facts
Tarsnap
Tarsnap · British Columbia, Canada · founded 2011
Plans and prices
Storage
$0.25usage-based
Prepaid usage-based storage · Charged on encoded data after deduplication, compression, and encryption
Read 20 Sep 2026 · tarsnap.com
Bandwidth
$0.25usage-based
Prepaid usage-based bandwidth · Charged on encoded data transmitted
Read 20 Sep 2026 · tarsnap.com
Pay-as-you-go bandwidth
$2,500.25usage-based
Encoded data transmitted after deduplication, compression, and encryption · no fixed or minimum monthly fees
Read 11 Oct 2026 · tarsnap.com
Pay-as-you-go storage
$2,500.25usage-based
Encoded data stored after deduplication, compression, and encryption · no fixed or minimum monthly fees
Read 11 Oct 2026 · tarsnap.com
On the record
- Account limit
- If the account balance stays below zero for more than a week, the account is permanently removed.tarsnap.com · read 11 Oct 2026
- Backup scope
- filetarsnap.com · read 20 Sep 2026
- Company history
- The site says Tarsnap Backup Inc. was incorporated in British Columbia, Canada, in September 2011.tarsnap.com · read 11 Oct 2026
- Computer backup
- Yestarsnap.com · read 20 Sep 2026
- Deduplication
- The client removes duplicate variable-length data blocks before uploading archives, reducing storage and bandwidth use.tarsnap.com · read 11 Oct 2026
- Encryption
- Tarsnap uses client key files containing separate authentication and encryption keys, and says the service cannot disclose or tamper with archive data even if compromised.tarsnap.com · read 11 Oct 2026
- Integrations
- Tarsnap uses Amazon S3 for archived data and Amazon EC2 for its server, and uses Stripe and PayPal for payment processing.tarsnap.com · read 11 Oct 2026
- Key protection
- Key files can be passphrase-protected using the scrypt key derivation function, and restricted key files can limit permitted actions.tarsnap.com · read 11 Oct 2026
- Payments
- Users must deposit $5 or more before using Tarsnap and can add money whenever they want.tarsnap.com · read 11 Oct 2026
- Platform support
- The download page provides installation paths for Linux distributions, FreeBSD, NetBSD, OpenBSD, macOS, and Windows Subsystem for Linux.tarsnap.com · read 11 Oct 2026
- Product
- Tarsnap is a secure, efficient command-line online backup service for Linux, BSD, macOS, and other UNIX-like operating systems.tarsnap.com · read 11 Oct 2026
- Restore modes
- filetarsnap.com · read 20 Sep 2026
- Snapshots
- Each archive acts independently, and the site says there are no arbitrary limits on archive count, creation frequency, or retention duration.tarsnap.com · read 11 Oct 2026
- Source code
- The client source code is available for review, but Tarsnap states that it is not distributed under an open source license.tarsnap.com · read 11 Oct 2026
- Paid from
- 0.25tarsnap.com · read 20 Sep 2026
- Support
- The site lists documentation, an EFnet #tarsnap IRC channel, mailing lists, and contacting the author as support options.tarsnap.com · read 11 Oct 2026
