Best free serverless function platforms (2026)

These platforms run serverless, edge, or background functions on a free tier that renews each month. They are ranked by our free-value score, which weighs invocation and compute allowances against the runtime and concurrency limits attached. One-time credits are grouped separately so a trial grant never outranks a permanent free tier.

How these scores work

Renewable free tiers

Ranked by free-value score. Every tier here renews rather than expiring.

#ServiceScore
1Cloudflare WorkersBest default for webhook receivers, setup APIs, and static frontend companion backend.5.8/10
2Deno DeployDeno Deploy runs JavaScript/TypeScript at the edge with a built-in KV store and a free tier for personal projects.7.2/10
3Vercel FunctionsFrontend-friendly functions and deploy previews.7.1/10
4Oracle Cloud FunctionsServerless functions-as-a-service on Oracle Cloud Infrastructure, built on the open-source Fn Project, with a recurring monthly free allowance.6.3/10
5AWS LambdaEvent-driven serverless compute that runs your code on demand without provisioning or managing servers, billed per request and per millisecond of compute.6.2/10
6Google Cloud Run functionsEvent-driven serverless functions on Google Cloud (formerly Cloud Functions) with a perpetual monthly free tier.6.2/10
7Upstash | WorkflowDurable serverless workflow steps with retries, sleeps, callbacks, HTTP calls, and QStash-backed scheduling.6.2/10
8Val TownVal Town lets you write, run and schedule small TypeScript/JavaScript functions in the cloud with HTTP endpoints, crons and an MCP integration.6.0/10
9Scaleway Serverless FunctionsEuropean cloud FaaS that runs Go, Node, Python, PHP, and Rust code on demand with a permanent monthly free allowance.5.6/10
10RenderStarter web service: 0.5 CPU / 512MB RAM at $7/mo (~$0.05/hr); Standard 1 CPU / 2GB at $32/mo (~$0.20/hr). Free tier of 750 instance-hours/month per workspace.4.9/10
11AWS LambdaLambda on Graviton2 (Arm) for up to ~34% better price/perf vs x86; duration ~$0.0000133/GB-s, same $0.20/M requests, shares the 1M requests + 400,000 GB-s free tier.4.7/10
12AWS LambdaPay-per-use: $0.20/M requests plus duration in 1ms increments per GB-second. Free tier 1M requests + 400,000 GB-seconds/month. Arm/Graviton2 up to ~20% cheaper.4.7/10
13DigitalOcean FunctionsOn-demand serverless functions with a flat always-free monthly compute allowance and no idle costs.4.7/10
14DigitalOcean FunctionsPay-per-use: $0.0000185/GiB-second of memory+runtime. Free allowance of 90,000 GiB-seconds (25 GiB-hours)/month per team across all functions. No per-request fee.4.7/10
15Scaleway ServerlessEUR 0.50 per 100k GB-s after a 400,000 GB-s/month free tier per account; provisioned EUR 0.000017/GB-s. EU-based, GDPR-friendly.4.7/10
16Google Cloud RunPay-per-use container compute by vCPU-s and GiB-s plus $0.40/M requests. Free tier: 180,000 vCPU-s, 360,000 GiB-s, 2M requests/month. Scale-to-zero; request- or instance-based bill4.6/10
17Vercel SandboxIsolated, ephemeral Linux microVMs for safely running untrusted or AI-generated code.4.4/10
18Yandex Cloud FunctionsServerless function-as-a-service that runs your code on demand with no VM management, billed per invocation and GB-hour of execution.4.4/10
19Azure FunctionsFlex Consumption: $0.000004/GB-s idle baseline and $0.000016/GB-s execution, plus $0.40/M executions. Free grant of 250,000 executions and 100,000 GB-s/month per subscription.4.0/10
20Netlify FunctionsStatic hosting plus functions for simple APIs.3.8/10
21GitHub ActionsFree-ish scheduled or manual jobs for technical users.3.2/10

One-time credits & programs

Kept separate from the ranking above: these are trial credits or eligibility-gated programs that eventually run out or require qualification, not renewable free tiers.