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Cloud · head to head

Dokku vs Memcached

Dokku logo

Dokku

Cloud

Single-server platform that accepts a git push and runs Heroku buildpacks on Docker

From
Free
Rated
-
Full reviewWebsite
M

Memcached

Databases

Distributed memory object caching system

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Dokku one maintainer accounts for nearly all human commit activity and the project records roughly 10,500 US dollars of annual income on Open Collective, which is not enough to fund a maintainer, so continuity rests on one person continuing to volunteer.; Memcached no persistence at all: restart a node and its cache is gone, which every design must assume
  • They diverge on capability: Dokku covers Git push deploy, Memcached covers In-memory key-value cache.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Dokku and Memcached actually diverge.

Attributes where Dokku and Memcached differ
AttributeDokkuMemcached
Pricing modelOpen source, no licence feeOpen source, no licence fee; managed cloud billed separately
PlatformsLinux, Docker, CLI, Self-hostedLinux, macOS, Windows, Docker, Self-hosted
CategoryCloudDatabases

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 Dokku

  • Git push deploy
  • Heroku buildpacks
  • Datastore plugins
  • Automatic certificates
  • Zero downtime deploys
  • Pluggable schedulers

Only in Memcached

  • In-memory key-value cache
  • Multithreaded
  • Client-side sharding
  • Predictable memory use

What people use each for

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

Dokku

  • Running a dozen side projects and client applications on one virtual private server with Heroku style deploymentnot Memcached
  • Moving off a managed platform when the monthly bill has grown faster than the traffic hasnot Memcached
  • A consultancy that wants buildpack deployments without teaching every client team Kubernetesnot Memcached
  • Keeping a legacy Procfile application alive on hardware you control after a managed platform deprecates its stacknot Memcached

Memcached

  • Caching expensive database query results to cut loadnot Dokku
  • Session storage where losing sessions on restart is acceptablenot Dokku
  • Fronting an API whose responses are costly and change slowlynot Dokku

Where each one falls short

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

Dokku

  • One maintainer accounts for nearly all human commit activity and the project records roughly 10,500 US dollars of annual income on Open Collective, which is not enough to fund a maintainer, so continuity rests on one person continuing to volunteer.
  • Dokku Pro asks 849 US dollars for a lifetime licence from a project with no disclosed legal entity behind the promise and no published refund terms, while the product is still described as in development at early bird pricing.
  • Dokku is single-server by design, and the k3s scheduler that provides multi-node support is missing log retrieval, process inspection and content-based health checks, with a post-run hook the documentation says does not consistently fire.
  • Supported operating systems are limited to Ubuntu 22.04 or 24.04 and Debian 11 or later, so organisations standardised on Red Hat, Rocky or Alma Linux cannot run it on their approved base image.
  • Backups are separate commands per datastore plugin that you schedule yourself, with no unified snapshot, no point-in-time recovery and no tested restore path, so verifying that a restore works is entirely your responsibility.

Memcached

  • No persistence at all: restart a node and its cache is gone, which every design must assume
  • No replication or failover, so losing a node loses that share of the cache
  • Only simple key-value, with none of the lists, sorted sets or streams Redis offers
  • Values are capped at 1MB by default, which surprises teams caching large documents

Pricing, plan by plan

Dokku

Free
  • DokkuFree
    • MIT licensed, no usage limits
    • Command line and SSH only
    • All datastore and certificate plugins
  • Dokku Pro$849/one-time
    • Lifetime licence with free upgrades and no subscription
    • Covers 1 production and 2 pre-production servers
    • Web dashboard and JSON REST API

Memcached

Free
  • MemcachedFree
    • Full functionality
    • Self-hosted
    • No usage limits

Which should you pick?

Choose Dokku if

  • You need git push deploy.
  • You want to start without paying.
  • You work on Linux, Docker, CLI, Self-hosted.
  • You also want heroku buildpacks.
Dokku review

Choose Memcached if

  • You need in-memory key-value cache.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, Docker, Self-hosted.
  • You also want multithreaded.
Memcached review

Questions people ask

Is Dokku or Memcached better?
Neither clearly leads. Dokku starts at Free and Memcached at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Dokku or Memcached?
Dokku starts at Free and Memcached at Free.
Does Dokku or Memcached run on more platforms?
Dokku runs on Linux, Docker, CLI, Self-hosted. Memcached runs on Linux, macOS, Windows, Docker, Self-hosted.
Can I use Dokku for free?
Both have a free tier, so you can try either at no cost before committing.
What is Dokku best used for?
Dokku is most often used for running a dozen side projects and client applications on one virtual private server with heroku style deployment, moving off a managed platform when the monthly bill has grown faster than the traffic has, a consultancy that wants buildpack deployments without teaching every client team kubernetes, keeping a legacy procfile application alive on hardware you control after a managed platform deprecates its stack. Of those, running a dozen side projects and client applications on one virtual private server with heroku style deployment and moving off a managed platform when the monthly bill has grown faster than the traffic has are not what Memcached is typically brought in for.
What can Dokku do that Memcached cannot?
Dokku covers Git push deploy, Heroku buildpacks, Datastore plugins, Automatic certificates. Memcached covers In-memory key-value cache, Multithreaded, Client-side sharding, Predictable memory use.

Answered from the vendors’ own pages

Dokku: Is Dokku still maintained?

Yes. Version 0.38.27 shipped in August 2026 with roughly six releases in the preceding two months. The caveat is that one maintainer writes nearly all of it.

Memcached: Is Memcached free?

Yes, open source with no licence fee.

Dokku: What does Dokku Pro give me over the free edition?

A web dashboard, a JSON REST API, git push over HTTPS, browser log tailing, team management and email support from the maintainers. It costs 849 US dollars once for one production and two pre-production servers.

Memcached: Memcached or Redis?

Memcached is a pure cache: simpler, multithreaded and very predictable. Redis adds persistence, replication and rich data structures, which is why it is the default choice unless you specifically want a cache and nothing more.

Dokku: Can Dokku run across multiple servers?

Only through the k3s or Nomad schedulers. The k3s path is missing several commands and health check types, and the older Kubernetes scheduler is deprecated and no longer developed.

Memcached: Does Memcached persist data?

No. Everything is in memory and lost on restart, by design.

Dokku: Will my Heroku application run on it unchanged?

Usually. Dokku runs the same buildpacks and reads a Procfile, so the application layer normally moves across. Add-ons, scaling behaviour and backups are the parts you have to rebuild.

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