Comparison

Kopia vs restic

Kopia lands on Worth it, and restic lands on Depends.

Kopia

Worth it

Confidence: Medium

Free, fast, encrypted open-source backup that technical users and self-hosters love.

Depends

Confidence: Medium

Use it if you're technical and want free, encrypted, deduplicated backups to any storage backend.

Kopia versus restic
Compare	Kopia	restic
Verdict	Worth it	Depends
Best for	Self-hosters and NAS owners	Self-hosters and homelab admins
Who it's not for	Non-technical users wanting set-and-forget backups . use Backblaze or Time Machine	Non-technical users wanting point-and-click backups
Privacy	Encrypted by default; one critical server RCE (CVE-2026-45695) fixed in 0.23.0 . run the latest version.^⁷	No known public vulnerabilities found in the sources reviewed.
Support quality	Community forums only; no paid support	Community forum only, no vendor
Public sentiment	Overwhelmingly positive among self-hosters and technical users who praise its speed, with a minority reporting defaults and performance issues.^³	Homelab and developer communities widely praise restic's encryption and snapshot model, with GUI polish the recurring complaint.¹³
Biggest gotcha	Patch to 0.23.0+ before running Kopia server; unauthenticated RCE (CVE-2026-45695)	No vendor support; the community forum is your helpdesk

Non-technical users wanting set-and-forget backups . use Backblaze or Time Machine
Businesses needing vendor SLAs and support contracts
Anyone who won't promptly patch an internet-exposed Kopia server
Guess: enterprises needing certified compliance and managed backup