Restic vs Amazon S3
A detailed comparison to help you choose between Restic and Amazon S3.
Quick Verdict
4.3/5
Restic
0 reviews
4.1/5
Amazon S3
0 reviews
Restic is rated higher (4.3 vs 4.1). Restic is a modern backup program that uses content-addressable storage, deduplication, and AES-256 encryption. Backs up to S3, B2, Google Cloud, SFTP, and more. No server required. AWS S3 stores and retrieves unlimited amounts of data via a simple web interface. Built for developers, enterprises, and anyone needing reliable, durable cloud storage with pay-as-you-go pricing.
Restic Fast, secure, encrypted open source backup |  Amazon S3 Scalable object storage for any data size or type | |
|---|---|---|
| Overview | ||
| Rating | 4.3 (0 reviews)✓ | 4.1 (0 reviews) |
| Pricing model | free | pay-as-you-go (per GB-month + per 1,000 requests + retrieval/transfer) |
| Starting price | Free✓ | From $0.023/mo |
| Best for | Developers and sysadmins who want encrypted, deduplicated off-site backups to any storage backend and are comfortable owning key management and operations. | Teams building on AWS who need durable, API-stable object storage for backups, data lakes, static content and archives — and who value tooling compatibility over the lowest per-GB rate |
| Features | ||
| IPv6 | ✓ | |
| DDoS protection | ✓ | |
| Automated backups | ||
| Snapshots | ||
| Managed option | ||
| Bare metal | ||
| GPU available | ||
| S3-compatible | ||
| Hourly billing | ||
| Free tier | ||
| Data-center locations | ||
| Regions | — | 39 AWS regions / 123-124 AZs |
| Tags | ||
| Tags | free tieropen source | free tiers3 compatibleapi accessus datacentereu datacenterapac datacenterterraform provider |
| Visit Restic → | Visit Amazon S3 → | |
Restic
Pros
- + Free BSD-2-Clause software with no paid tier or usage caps
- + Client-side AES-256-CTR encryption with Poly1305 authentication is always on
- + Content-addressed deduplication: incremental backups and multi-machine repositories
- + Native support for S3, B2, GCS, Azure Blob, SFTP, and REST backends; rclone for the rest
- + Openly documented repository format — no vendor lock-in, portable repositories
Cons
- - No password recovery: lose the repository key and the data is gone
- - Command-line only — scheduling, monitoring, and alerting are external
- - Community support only; no SLA or paid support option
- - Repository maintenance (prune, check) requires operational discipline
- - Pre-1.0 version numbering; the API surface can still shift between releases
Amazon S3
Pros
- + Designed for 11 nines durability with cross-AZ replication by default and strong read-after-write consistency
- + The S3 API is the industry standard — code written in 2006 still works, and third-party compatibility is everywhere
- + 23x cost ladder from Standard down to Glacier Deep Archive at $0.00099/GB-month, with lifecycle automation
- + Deepest storage feature set available: versioning, Object Lock, replication, inventory, event notifications, access management
Cons
- - Egress at $0.09/GB and per-request pricing produce surprise bills for chatty or restore-heavy workloads
- - IA and Glacier classes add retrieval fees and latency — the restore path must be priced separately
- - Policy configuration (bucket policies, IAM, Block Public Access, KMS keys) is complex and historically error-prone
- - SLA (99.9%/99.0%) is far below the durability figure — availability and durability are different promises
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