Cloudflare Workers
A runtime environment for executing JavaScript and WebAssembly code via HTTP requests
- Vendor
- Cloudflare
- Also known as
- cloudflare-workers
Available worldwide
What is Cloudflare Workers?
Cloudflare Workers is a server runtime that allows you to run JavaScript and WebAssembly code in response to HTTP requests, either through Cloudflare's cloud platform or by self-hosting the runtime.
Cloudflare Workers pricing
Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.
Free tier with per-request and per-CPU metering. General Cloudflare plans from free to $250/mo; Workers add-on services metered separately.
Free
FreeFor personal or hobby projects
- containers_cpu
- 375 vCPU-min
- containers_disk
- 200 GB-hrs
- workers_cpu_time
- 10ms/request
- workers_requests
- 100k/day
- browser_rendering
- 10 min/day
- containers_memory
- 25 GiB-hrs
- workflows_storage
- 1 GB
- browser_concurrent
- 3 browsers
- workflows_cpu_time
- 10ms/invocation
- workflows_requests
- 100k/day
- containers_egress_na_eu
- 1 TB
- durable_objects_duration
- 13k GB-s/day
- durable_objects_requests
- 100k/day
- durable_objects_kv_storage
- 1 GB
- durable_objects_sql_storage
- 5 GB
- durable_objects_sql_rows_read
- 50M/day
- durable_objects_sql_rows_written
- 100k/day
- DNS
- DDoS Protection
- CDN
- Universal SSL
- WAF
- Free Managed Ruleset
- SSO Support
- Role-based Account Control
Pro
For professional websites
- Fast DNS
- Unmetered DDoS Protection
- CDN
- Universal SSL Certificate
- Free Managed Ruleset
- Web Application Firewall
- Lossless Image Optimization
- Accelerated Mobile Pages
- 100% Uptime SLA
- 1x Uptime Service Credits
- Single-Sign-On Support
- Role-based Account Control
Business
For small businesses operating online
- Fast DNS
- Unmetered DDoS Protection
- CDN
- Universal SSL Certificate
- Free Managed Ruleset
- Web Application Firewall
- Lossless Image Optimization
- Accelerated Mobile Pages
- PCI DSS 4.0 Compliance
- 10x or 25x Uptime Service Credits
- Single-Sign-On Support
- Role-based Account Control
- Network Prioritization
Contract
Contact salesFor mission-critical applications
Add-ons
- Workers (metered)$0.30 per 1000000 requests + $0.02 per 1000000 CPU ms
- Containers (metered)$0.00 per GiB-second + $0.00 per vCPU-second + $0.00 per GB-second + $0.03 per GB
- Durable Objects (metered)$0.15 per 1000000 requests + $12.50 per 1000000 GB-s + $0.00 per 1000000 SQL rows read + $1 per 1000000 SQL rows written + $0.20 per GB-month
- Browser Rendering (metered)$0.09 per hour + $2 per browser
- Workflows (metered)$0.30 per 1000000 requests + $0.02 per 1000000 CPU ms + $0.20 per GB-month
What Cloudflare Workers does
The capabilities that matter for serverless & edge platforms, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Execution substrate
- V8 isolate
- Language / runtime breadth
- JavaScript, TypeScript, Python, Rust
- Runs at global edge PoPs
- ✓
- Scale to zero
- ✓
- Cold-start profile
- None (isolate)
- Max execution duration
- -
- Event source breadth
- HTTP requests, cron schedules, webhooks, message queues
- HTTP endpoint trigger
- ✓
- Cron / scheduled invocations
- ✓
- Durable state / workflow primitive
- ✓
- Bring-your-own runtime / container
- ✓
- Hosting
- Cloud only
- Built-in logs / metrics / tracing
- -
- CLI + IaC / framework support
- ✓
Platform & deployment
Independently observed- CLI
- Web
- Cloud / SaaS
- Self-hosted
Cloudflare Workers FAQ
Common questions about Cloudflare Workers, answered from independent, dated evidence.
What is Cloudflare Workers?
Cloudflare Workers is a server runtime that allows you to run JavaScript and WebAssembly code in response to HTTP requests, either through Cloudflare's cloud platform or by self-hosting the runtime. It is indexed under Serverless & Edge Platforms.
Source: https://workers.cloudflare.com/
Is Cloudflare Workers free?
Cloudflare Workers offers a free tier, so you can start without paying. Paid plans start at $20 per year. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.
Source: https://www.cloudflare.com/plans
What platforms does Cloudflare Workers support?
Cloudflare Workers supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.
Source: https://www.cloudflare.com/plans
Can Cloudflare Workers be self-hosted?
Yes. Cloudflare Workers can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.
Source: https://workers.cloudflare.com/
What security certifications does Cloudflare Workers have?
We have independently confirmed SOC 2, ISO 27001 and GDPR for Cloudflare Workers. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Cloudflare Workers not holding them. Always confirm compliance directly before you rely on it.
Where is Cloudflare Workers available?
Cloudflare Workers is available worldwide. The vendor is headquartered in the United States.
Source: https://www.cloudflare.com/plans
Cloudflare Workers alternatives
Other serverless & edge platforms we track, ranked by the same independent score.
- Vercel FunctionsRun server-side code that automatically scales with trafficmedium · 61%
- Deno DeployServerless deployment platform with usage-based pricing across multiple tiershigh · 76%
- Vercel Edge RuntimeA global content delivery network for deploying and scaling applications worldwidemedium · 63%
- AWS Lambdamedium · 74%
- Serverless FrameworkA command-line framework for deploying serverless applications to AWS that auto-scales and eliminates idle costsmedium · 74%
- ModalServerless cloud computing with automatic scaling and GPU accessmedium · 72%
Compare Cloudflare Workers
Side by side against other serverless & edge platforms, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Cloudflare Workers, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Reliability | 100 | 0.16 | 15.7 | ✓ |
| Security posture | 90 | 0.12 | 10.4 | ✓ |
| Pricing transparency | 100 | 0.06 | 6.3 | ✓ |
| Capabilities | 87 | 0.05 | 4.4 | ✓ |
| Price level | 50 | 0.04 | 2.1 | ✓ |
| Integrations | 0 | 0.05 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 6 items | mediumsource · 2026-09-10 · 64% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Hosting: cloud · Triggers: HTTP requests, cron schedules, webhooks, message queues · Languages: JavaScript, TypeScript, Python, Rust · Cold start: none · Cli and iac: Yes · Http trigger: Yes | mediumsource · 2026-09-04 · 60% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | HqCountry: US · PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | highsource · 2026-08-14 · 75% |
Pricing
Reliability
Security
| Attribute | Value | Evidence |
|---|---|---|
| Disclosure policy | Yes | mediumsource · 2026-08-01 · 60% |
| Gdpr | Yes | highsource · 2026-08-14 · 75% |
| Iso27001 | Yes | highsource · 2026-08-14 · 75% |
| Pci | Yes | highsource · 2026-08-14 · 75% |
| Soc2 | Yes | highsource · 2026-08-14 · 75% |
| Trust center | https://www.cloudflare.com/learning/security/account-takeover | mediumsource · 2026-09-04 · 60% |
Is Cloudflare Workers the right choice for you?
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