Coolify vs Dokku
Both are alternatives to Heroku. Here's how they stack up — verified facts, no spin.
Also searched as Dokku vs Coolify — same comparison, one verdict.
Coolify and Dokku are closely matched on ownership (94 vs 95) — this one comes down to pricing and to which trade-offs below you can live with.
Coolify
TOP PICKSelf-hosted Heroku — one server, Apache-2.0, everything included.
Coolify installs on a plain VPS and gives you Git-push deployment, automatic TLS, databases, backups, preview environments and a dashboard that non-specialists can use. Apache-2.0 with around 60k stars, and its growth over the past two years has been the clearest signal in this category. On a $12 server it will comfortably run several applications with their databases — the same work Heroku would bill well over $100 for. You are trading a monthly invoice for a server you now own, and for many teams that is the correct trade rather than a compromise.
Dokku
The original self-hosted PaaS — small, stable, unglamorous.
Dokku has been doing this since 2013 and describes itself accurately as the smallest PaaS implementation you have seen: Git-push deployment via Docker, Heroku buildpack support so existing apps often deploy unchanged, and a plugin system for databases and TLS. MIT, around 32k stars. It has no web interface — everything is the command line — and that is deliberate. For someone comfortable in a terminal it is the most dependable option here, and it has outlived several better-funded competitors.
Side by side
10 points of comparison, every one read from a verified field. Green marks the side that wins a row outright. A dash means we do not hold that fact — never that it is zero.
| Coolify | Dokku | |
|---|---|---|
| Sovereignty ScoreOur transparent 0–100 composite for data ownership and exit cost. | 94 | 95 |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
| Local-first data | Yes | Yes |
| License | Apache-2.0 | MIT |
| Pricing | Free and open source. You pay only for the server. Paid cloud option available. | Free and open source. You supply the server. |
| RAM to run it wellThe figure that actually matters, not the vendor's minimum. | 4 GB on the control node, plus whatever your apps need | 2 GB plus whatever your apps need |
| Realistic running costWhat the box costs each month if you run it yourself. | $12–24/mo control node, against Heroku or Vercel pricing that scales per app | $12–24/mo for a box running several apps, against Heroku dyno pricing charged per app |
| Setup timeHonest first-install estimate, not the marketing quickstart. | 1 hour | 30 minutes |
| Ongoing maintenanceThe part nobody budgets for. | Moderate. You now own the host OS, Docker, TLS certificates and backups for everything it deploys. | Moderate. You own the host OS, Docker, TLS renewal and backups for everything on it. |
Coolify is Macrostack's recommended Heroku alternative, so it's our pick here.
Weighing both against staying on Heroku? Is Heroku free? What it actually costs →
Coolify
Strengths
- +Roughly a tenth of Heroku's cost for equivalent workloads
- +Apache-2.0 with no enterprise carve-out
- +Git-push deployment, automatic TLS, databases and backups included
- +Interface good enough that non-specialists can use it
Trade-offs
- −You own the server — patching, uptime and backups are yours
- −Single-server by default; multi-node is more involved
- −Younger than Dokku with a shorter production record
- −No compliance certifications
Dokku
Strengths
- +Over a decade of stability; genuinely mature
- +Heroku buildpack support means many apps deploy unchanged
- +MIT and very light — runs on a small VPS
- +Extremely well documented for command-line use
Trade-offs
- −No web interface at all
- −Single-server by design
- −Assumes comfort with the command line
- −Fewer batteries included than Coolify
Which one fits you
The trade-offs above, turned into a decision. Find the line that describes your team.
Choose Coolify
if roughly a tenth of Heroku's cost for equivalent workloads.
Choose Dokku
if a lower exit cost matters more to you than any single feature, and over a decade of stability; genuinely mature.
Neither, yet
if both carry a real cost you should weigh first — you own the server — patching, uptime and backups are yours, and no web interface at all. If either of those is a dealbreaker for your team, the shortlist is wrong rather than the choice.
What it takes to run these yourself
Real requirements and honest running costs, not the vendor quickstart.
Self-hosting Coolify
4 GB on the control node, plus whatever your apps need RAM · 1 hour
$12–24/mo control node, against Heroku or Vercel pricing that scales per app
Self-hosting Dokku
2 GB plus whatever your apps need RAM · 30 minutes
$12–24/mo for a box running several apps, against Heroku dyno pricing charged per app
Coolify vs Dokku — common questions
Is Coolify a better fit than Dokku for platform as a service?
It depends on what you are optimising for, and the honest split is this: Dokku scores 95 to Coolify's 94 on data ownership and exit cost, so it is the safer choice if you care about being able to leave. Coolify earns its place on a different axis — roughly a tenth of Heroku's cost for equivalent workloads. Neither is a wrong answer for every team; the table above is the actual comparison.
What happens if we want to switch later?
Coolify keeps its data local or in open formats, so leaving is an export rather than a negotiation. Dokku is still self-hostable, so the files stay on your server either way — but it is not local-first by design, so check what its export produces before you rely on it.
Can I self-host Coolify or Dokku?
Both can be self-hosted. The difference is what it costs you in time rather than whether it is possible — see the setup and maintenance rows above.
Are Coolify and Dokku both alternatives to Heroku?
Yes — both appear in our Heroku comparison, which is why they are worth putting side by side. People usually arrive here already having decided to move off Heroku and now choosing between the two replacements, which is a narrower and much easier question.
Related alternative guides
Facts verified 2026-08-05. Licenses and pricing change — spotted something out of date? That's a correction we want.