Is Kopia or Vault better?

Neither clearly leads. Kopia starts at Free and Vault at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Kopia or Vault?

Kopia starts at Free and Vault at Free.

Does Kopia or Vault run on more platforms?

Kopia runs on Linux, macOS, Windows, Docker. Vault runs on Linux, Windows, Mac, Cloud.

Can I use Kopia for free?

Both have a free tier, so you can try either at no cost before committing.

What is Kopia best used for?

Kopia is most often used for backing up laptops and workstations to cheap object storage with a desktop interface rather than a cron job, deduplicating backups of several similar machines into one repository so common content is stored once, replacing a chunk based tool whose per object charges made a cheap bucket expensive, keeping an encrypted offsite copy where the storage provider must never be able to read the contents. Of those, backing up laptops and workstations to cheap object storage with a desktop interface rather than a cron job and deduplicating backups of several similar machines into one repository so common content is stored once are not what Vault is typically brought in for.

What can Kopia do that Vault cannot?

Kopia covers Content defined chunking, Global deduplication, Pack blobs, Client side encryption. Vault covers Secrets management, Encryption, Authentication, Authorization.

Backup · head to head

Kopia vs Vault

Kopia

Backup

Open source deduplicating backup with client side encryption and a repository on almost any storage

From: Free
Rated: -

Full review Website

Vault

Cloud

Manage Secrets and Protect Sensitive Data

From: Free
Rated: -

Full review Website

The short version

Each has a real cost: Kopia space is only reclaimed when maintenance runs, and in a shared repository full maintenance is owned by one client, so if that machine goes away the repository grows for ever while every backup still reports success.; Vault vault 1.15.0 and later is licensed under the Business Source License 1.1, not an OSI open source licence, with IBM Corporation as licensor
They diverge on capability: Kopia covers Content defined chunking, Vault covers Secrets management.
Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Kopia and Vault actually diverge.

Attributes where Kopia and Vault differ
Attribute	Kopia	Vault
Pricing model	Open source, no licence fee	open-source
Platforms	Linux, macOS, Windows, Docker	Linux, Windows, Mac, Cloud
Category	Backup	Cloud
Founded	Unknown	2015

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Kopia

Content defined chunking
Global deduplication
Pack blobs
Client side encryption
Desktop and command line
Repository verification

Only in Vault

Secrets management
Encryption
Authentication
Authorization
Audit logging
API access
High availability
Replication

What people use each for

The jobs each tool is most often brought in to do.

Kopia

Backing up laptops and workstations to cheap object storage with a desktop interface rather than a cron jobnot Vault
Deduplicating backups of several similar machines into one repository so common content is stored oncenot Vault
Replacing a chunk based tool whose per object charges made a cheap bucket expensivenot Vault
Keeping an encrypted offsite copy where the storage provider must never be able to read the contentsnot Vault

Vault

Centrally storing and rotating secrets, API keys and database credentialsnot Kopia
Issuing short-lived dynamic credentials to applications instead of static passwordsnot Kopia
Encryption as a service and PKI certificate issuancenot Kopia

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Kopia

Space is only reclaimed when maintenance runs, and in a shared repository full maintenance is owned by one client, so if that machine goes away the repository grows for ever while every backup still reports success.
The repository format has changed across versions and mixing client versions against one repository is discouraged, so a fleet must be upgraded together rather than machine by machine.
There is no central orchestration or reporting for many machines, so monitoring a fleet means building your own alerting around exit codes.
Restoring many small files is slower than the backup was, because content must be reassembled from pack blobs, and this is rarely tested until the day it matters.
Encryption is client side with no escrow, so a lost repository password means the data is unrecoverable and there is no vendor to appeal to.

Vault

Vault 1.15.0 and later is licensed under the Business Source License 1.1, not an OSI open source licence, with IBM Corporation as licensor
The Additional Use Grant forbids offering Vault to third parties on a hosted or embedded basis in a paid product that competes with IBM's paid versions of Vault
Each version only converts to MPL 2.0 four years after that version is published, and the Change Date is tracked per version
Replication, HSM support, namespaces, performance standby nodes, FIPS builds, control group authorisation, multi-factor authentication, secrets sync and lease count quotas all require a Vault Enterprise licence
A Vault Enterprise licence must be applied to the cluster before any Enterprise feature can be used

Pricing, plan by plan

Kopia

Free

KopiaFree
- Full functionality, no data limit
- Desktop application included
- Any supported storage back end

Vault

Free

Open SourceFree
- Secrets management
- Encryption as a service
- Identity management
EnterpriseFree
- Advanced features
- Premium support
- Dedicated updates

Which should you pick?

Choose Kopia if

You need content defined chunking.
You want to start without paying.
You work on Linux, macOS, Windows, Docker.
You also want global deduplication.

Kopia review

Choose Vault if

You need secrets management.
You want to start without paying.
You work on Linux, Windows, Mac, Cloud.
You also want encryption.

Vault review

Questions people ask

Is Kopia or Vault better?: Neither clearly leads. Kopia starts at Free and Vault at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Kopia or Vault?: Kopia starts at Free and Vault at Free.
Does Kopia or Vault run on more platforms?: Kopia runs on Linux, macOS, Windows, Docker. Vault runs on Linux, Windows, Mac, Cloud.
Can I use Kopia for free?: Both have a free tier, so you can try either at no cost before committing.
What is Kopia best used for?: Kopia is most often used for backing up laptops and workstations to cheap object storage with a desktop interface rather than a cron job, deduplicating backups of several similar machines into one repository so common content is stored once, replacing a chunk based tool whose per object charges made a cheap bucket expensive, keeping an encrypted offsite copy where the storage provider must never be able to read the contents. Of those, backing up laptops and workstations to cheap object storage with a desktop interface rather than a cron job and deduplicating backups of several similar machines into one repository so common content is stored once are not what Vault is typically brought in for.
What can Kopia do that Vault cannot?: Kopia covers Content defined chunking, Global deduplication, Pack blobs, Client side encryption. Vault covers Secrets management, Encryption, Authentication, Authorization.

Answered from the vendors’ own pages

Kopia: Is a partly corrupt repository still restorable?

Partly. Deduplication means one damaged pack blob affects every snapshot referencing its contents, but unaffected files still restore. Run verification regularly rather than assuming.

Vault: Is HashiCorp Vault free to use?

Yes, Vault is available as a free, open-source project. The community version includes secrets management, certificate generation and rotation, encryption services, and credential management. Vault Enterprise is a commercial offering with additional features.

Source

Kopia: How does it compare with restic?

Similar guarantees, with packing that behaves better on per operation billing, a desktop interface, and compression enabled by default.

Vault: What are the differences between open-source Vault and Vault Enterprise?

Open-source Vault is free and self-hosted. Vault Enterprise includes additional features and commercial support. HashiCorp also offers Vault Dedicated on the HashiCorp Cloud Platform as a fully managed cloud option.

Source

Kopia: Do I need to run maintenance manually?

It is scheduled automatically by default, but you must ensure the client that owns full maintenance keeps running, otherwise deleted snapshots never free space.

Vault: Can I try HashiCorp Cloud Platform Vault without payment?

Yes, HashiCorp offers a free trial option for HCP Vault Dedicated. New users also receive a $500 credit to use across HashiCorp Cloud Platform services.

Source

Kopia: Can several machines share one repository?

Yes, and that is where deduplication pays off, but they should run compatible versions and only one owns full maintenance.

Vault: What does Vault manage and protect?

Vault provides identity-based secrets management for users, machines, services, and AI agents. It automates authentication and authorization for access to secrets, passwords, certificates, encryption keys, and other sensitive data across your infrastructure.

Source

Kopia vs Vault

Kopia

Vault

The short version

Where they differ

What each one covers

Only in Kopia

Only in Vault

What people use each for

Kopia

Vault

Where each one falls short

Kopia

Vault

Pricing, plan by plan

Kopia

Vault

Which should you pick?

Choose Kopia if

Choose Vault if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Kopia

More on Vault

Keep looking

Other head to heads