Cloudflare Workers
Serverless functions that run on Cloudflare's global network, billed by CPU time.
Pricing FreemiumPaid from $5 a month minimum per accountOpen source noStars 9.1knpm a week 30M
Fly.io alternatives
11 tools you can use instead of Fly.io, ranked by live GitHub stars and npm downloads. Cloudflare Workers, Cloudflare Pages and Vercel are the most used. Stats updated 5 hours ago.
Railway and Render are the closest alternatives: both are cloud platforms for apps and databases. Heroku is the platform-as-a-service option, from $5 a month. Coolify is open source and runs on your own servers.
When Fly.io is not a good fit
Fly.io is a platform for deploying applications and databases as lightweight virtual machines (Machines) across a global network of regions, billing compute by the second it actually runs. Pricing starts around $1.94 a month for a small shared-CPU machine, with storage, bandwidth and managed Postgres priced separately.
It is a weaker choice for:
- Teams wanting a simple flat monthly price without tracking several separately billed components (compute, storage, bandwidth)
- Non-technical users wanting a fully managed, no-configuration platform
- Very predictable, low-traffic workloads where a simpler flat-rate host might be easier to budget for
The alternatives
Most used first.
View Cloudflare Workers
Cloudflare Pages
JAMstack hosting platform with Git integration and unlimited bandwidth, deployed on Cloudflare's edge network.
Pricing FreemiumPaid from $20-$25 a month (Pro plan)Open source noStars 4.7knpm a week 30M
Vercel
Cloud platform for deploying web apps and frameworks like Next.js, with preview URLs and serverless functions.
Pricing FreemiumPaid from $20 a month for Pro, including one deploying seat and $20 of usage creditOpen source noStars 16.4knpm a week 5.3M
Coolify
Open source, self-hostable alternative to Vercel, Heroku, Netlify and Railway for deploying apps.
Pricing FreemiumPaid from $5 a month for Coolify Cloud, connecting up to 2 serversOpen source yesStars 64.5k
Dokploy
Open source, self-hostable platform as a service for deploying apps and databases with Docker.
Pricing Open sourcePaid from $4.50 a month per server for Dokploy Cloud HobbyOpen source yesStars 38k
AWS Amplify
AWS's platform for building and hosting full-stack web and mobile apps, priced pay-as-you-go.
Pricing Pay as you goPaid from $0.01 per build minute (Standard instance) beyond the free tierOpen source noStars 9.6knpm a week 2.2M
Netlify
Web platform for deploying sites and apps from Git, the CLI or AI agents, with functions, storage and Postgres.
Pricing FreemiumPaid from $9 a month for Personal (1,000 credits)Open source noStars 1.9knpm a week 476k
Railway
Usage-billed cloud platform for deploying apps, databases and cron jobs from GitHub or Docker images.
Pricing Pay as you goPaid from $5 a month for Hobby, including $5 of usageOpen source noStars 626npm a week 415k
Heroku
Platform-as-a-service for deploying apps as dynos, spanning classic Cedar dynos and newer Fir dynos.
Pricing PaidPaid from $5 a month (Eco dyno, Cedar)Open source noStars 886npm a week 16.3k
DigitalOcean App Platform
Platform-as-a-service for deploying apps from Git or a container registry, from a free static-site tier.
Pricing FreemiumPaid from $5 a month (Shared Fixed instance, 512 MiB)Open source no
Render
Cloud platform for deploying web apps, APIs, databases and background jobs from a Git repo.
Pricing FreemiumPaid from $25 a month for the Pro workspace plan, plus usage-based compute, bandwidth and storageOpen source no
Fly.io and its alternatives, side by side
| Tool | Pricing | Free plan | Paid from | Open source | GitHub stars |
|---|---|---|---|---|---|
| Fly.io | Pay as you go | Limited free usage may be available for small workloads; primarily pay-as-you-go | About $1.94 a month (shared-cpu-1x, 256MB, running continuously) | No | 1.7k |
| Cloudflare Workers | Freemium | Yes: 100,000 requests a day and 10 ms of CPU time per invocation | $5 a month minimum per account | No | 9.1k |
| Cloudflare Pages | Freemium | Yes: 500 builds a month, 1 concurrent build, 100 custom domains per project, unlimited sites and bandwidth | $20-$25 a month (Pro plan) | No | 4.7k |
| Vercel | Freemium | Yes: Hobby, for personal and non-commercial use, with 100 GB of fast data transfer and 1 million function invocations a month | $20 a month for Pro, including one deploying seat and $20 of usage credit | No | 16.4k |
| Coolify | Freemium | Yes: self-hosting Coolify on your own infrastructure is free forever with full access to all features | $5 a month for Coolify Cloud, connecting up to 2 servers | Yes, Apache-2.0 | 64.5k |
| Dokploy | Open source | Yes. Self-hosting is free. Dokploy Cloud is paid. | $4.50 a month per server for Dokploy Cloud Hobby | Yes, Apache-2.0, with a proprietary license for the /proprietary directories | 38k |
| AWS Amplify | Pay as you go | Yes: AWS Free Tier includes 1,000 build minutes, 5 GB storage and 15 GB data transfer a month for 12 months | $0.01 per build minute (Standard instance) beyond the free tier | No | 9.6k |
| Netlify | Freemium | Yes: 300 credits a month, with a hard limit and no option to buy more | $9 a month for Personal (1,000 credits) | No | 1.9k |
| Railway | Pay as you go | Yes: a 30-day trial with a one-time $5 credit, then a free plan with $1 of credit a month (0.5 GB RAM and 1 vCPU per service) | $5 a month for Hobby, including $5 of usage | No | 626 |
| Heroku | Paid | No free dyno tier; the lowest-cost Eco dyno starts at $5 a month | $5 a month (Eco dyno, Cedar) | No | 886 |
| DigitalOcean App Platform | Freemium | Yes: up to 3 apps with static sites and 1 GiB data transfer per app | $5 a month (Shared Fixed instance, 512 MiB) | No | None |
| Render | Freemium | Yes: the Hobby workspace plan, free services with 512 MB RAM and 5 GB bandwidth a month included | $25 a month for the Pro workspace plan, plus usage-based compute, bandwidth and storage | No | None |
Pricing facts come from each tool's official pricing page, with the checked date on the tool's own page.
Questions
What is the most popular alternative to Fly.io?
By GitHub stars, Cloudflare Workers is the most used alternative to Fly.io listed on ScratchDB, with 9.1k stars.
Which Fly.io alternatives are open source?
Coolify and Dokploy are open source.
Which Fly.io alternatives have a free plan?
Cloudflare Workers, Cloudflare Pages, Vercel, Coolify, Dokploy, AWS Amplify, Netlify, Railway, DigitalOcean App Platform and Render have a free plan. The table on this page shows what each one includes.