What is the top free pick among self-hosted PaaS and deploy tools?

Coolify leads the Stack Gems list for self-hosted PaaS and deploy tools. Verdict: Self-hosted PaaS that is actually usable.

How many self-hosted PaaS and deploy tools does Stack Gems review?

5: 3 free or open source, 2 hosted with a real free tier. Each review has a verdict and an honest Catch; no tool pays for its spot.

Which self-hosted PaaS and deploy tools have the most GitHub stars?

Coolify (63.2k), CapRover (15.2k), Wrangler (4.6k), per GitHub on 2026-10-19. Stars measure attention, not fit; read the Catch.

What is the catch with Coolify?

Self-hosting means self-operating.

Best of · DevOps

Best self-hosted PaaS and deploy tools (2026)

Stack Gems reviews 5 self-hosted PaaS and deploy tools: 3 free or open source, 2 hosted with a real free tier. These are the top 5, each with its verdict and the Catch we would want to know before installing it.

Order: free and open source first, then hosted products with a real free tier, then paid-led; catalog order inside each group, with quiet or archived repos last. Not a score, and no tool pays for its place.

5 reviewed · 5 shown in full

1.CoolifySelf-hosted Heroku alternative
Free / OSS · Apache-2.0 · 63.2k GitHub stars
VerdictSelf-hosted PaaS that is actually usable.
CatchSelf-hosting means self-operating. Some features are less polished than commercial alternatives. Single-server focus limits scale.
2.CapRoverFree PaaS you can run anywhere
Free / OSS · Apache-2.0 · 15.2k GitHub stars
VerdictSimple self-hosted PaaS for small deployments.
CatchLicense: Apache-2.0 with an appendix that overrides it — no redistributing paid versions of CapRover, its paid features cannot be modified, and changes to the free features must stay free and open source. Read it before building on top. Documentation assumes Docker knowledge. Some advanced features require manual configuration. Less active development than alternatives.
3.WranglerMIT/Apache CLI for Cloudflare Workers; Free plan is real
Free / OSS · Freemium · 4.6k GitHub stars
VerdictWorkers CLI with a real Free plan. Free to develop; pay Cloudflare when traffic or CPU leaves the free envelope.
CatchTied to Cloudflare’s platform: Free → Standard paid usage when you exceed quotas. Not a generic Node host and not Docker-on-VPS. Local emulation is good, production semantics still Cloudflare’s. Account + API token required to ship.
4.Fly.ioDeploy apps to VMs close to your users
Free tier · Freemium
VerdictFull VMs globally for developers who need more than serverless.
CatchMore operational than PaaS alternatives. Pricing requires understanding. Some features are less polished. The free tier has limitations.
5.RailwayDeploy from GitHub with zero configuration
Free tier · Freemium
VerdictThe simplest path from code to production.
CatchLess control than VMs or containers. Pricing scales with usage. Customization options are limited. Some workloads do not fit the model.

FAQ

What is the top free pick among self-hosted PaaS and deploy tools?: Coolify leads the Stack Gems list for self-hosted PaaS and deploy tools. Verdict: Self-hosted PaaS that is actually usable.
How many self-hosted PaaS and deploy tools does Stack Gems review?: 5: 3 free or open source, 2 hosted with a real free tier. Each review has a verdict and an honest Catch; no tool pays for its spot.
Which self-hosted PaaS and deploy tools can I self-host for free?: Coolify and CapRover.
Which self-hosted PaaS and deploy tools have the most GitHub stars?: Coolify (63.2k), CapRover (15.2k), Wrangler (4.6k), per GitHub on 2026-10-19. Stars measure attention, not fit; read the Catch.
What is the catch with Coolify?: Self-hosting means self-operating.

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