vioscaleAI
Comparison

Cloudflare Workers vs Fission

No leader: the top candidate Cloudflare Workers has only 0.14 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Cloudflare Workers full profile →Fission full profile →
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Cloudflare Workers63
Fission54
Score
vioscaleAI score
Cloudflare Workers63 / 100low · 14%
Fission54 / 100medium · 54%
Pricing
Free tier
Cloudflare Workers✓
Fission✓
Model
Cloudflare Workersopen_source
Fissionopen_source
Price level
Cloudflare Workersfree
Fissionfree
Transparent
Cloudflare Workers✓
Fission✓
Integrations
Count
Cloudflare Workers–
Fission6
Security
Disclosure policy
Cloudflare Workers✓
Fission–
Gdpr
Cloudflare Workers✓
Fission–
Iso27001
Cloudflare Workers✓
Fission–
Pci
Cloudflare Workers✓
Fission–
Scorecard
Cloudflare Workers–
Fission7.7
Soc2
Cloudflare Workers✓
Fission–
Trust center
Vulnerabilities
Reliability
Sla pct
Cloudflare Workers100
Fission–
Status page
Cloudflare Workers✓
Fission–
Adoption
Dependent repos
Cloudflare Workers–
Fission3
Github stars
Cloudflare Workers–
Fission8,933
Activity
Commits last 30d
Cloudflare Workers–
Fission60
Release
Cadence days
Cloudflare Workers–
Fission24
History
Cloudflare Workers–
Fission20 items
License
Spdx
Cloudflare Workers–
FissionApache-2.0
Language
Primary
Cloudflare Workers–
FissionGo
Market
Availability
Cloudflare WorkersAvailable worldwide · HQ US
Fission–
Content
Faq
Cloudflare Workers6 items
Fission6 items

Capabilities

Feature-by-feature on the axes that matter for serverless & edge platforms. “-” means undocumented, not absent.

Core
Execution substrate
Cloudflare WorkersV8 isolate
FissionContainer
Language / runtime breadth
Cloudflare WorkersJavaScript, TypeScript, Python, Rust
FissionPython, NodeJS, Go, Rust, C#, PHP (extensible to any language)
Reach
Runs at global edge PoPs
Cloudflare Workers✓
Fission✗
Scale
Scale to zero
Cloudflare Workers✓
Fission✓
Performance
Cold-start profile
Cloudflare WorkersNone (isolate)
FissionProvisioned concurrency
Limits
Max execution duration
Cloudflare Workers-
Fission-
Integration
Event source breadth
Cloudflare WorkersHTTP requests, cron schedules, webhooks, message queues
FissionHTTP and event triggers
HTTP endpoint trigger
Cloudflare Workers✓
Fission✓
Cron / scheduled invocations
Cloudflare Workers✓
Fission✓
State
Durable state / workflow primitive
Cloudflare Workers✓
Fission-
Flexibility
Bring-your-own runtime / container
Cloudflare Workers✓
Fission✓
Deployment
Hosting
Cloudflare WorkersCloud only
FissionCloud + self-hosted
Ops
Built-in logs / metrics / tracing
Cloudflare Workers-
Fission✓
Extensibility
CLI + IaC / framework support
Cloudflare Workers✓
Fission✓

What each one is

The product in its own terms, so the numbers below have context.

Cloudflare Workers

A server runtime environment based on Cloudflare Workers' underlying code, designed for self-hosting applications built with JavaScript and WebAssembly. It provides web-platform standard APIs and functions as a programmable HTTP proxy.

Independently observed

Fission

An open-source framework for building and deploying serverless functions on Kubernetes with automatic scaling. Supports multiple programming languages and can be triggered by HTTP requests, message queue events, and scheduled tasks.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Cloudflare Workers

from $20/moHybridFree tier

Free tier with per-request and per-CPU metering. General Cloudflare plans from free to $250/mo; Workers add-on services metered separately.

  • FreeFree
    • DNS
    • DDoS Protection
    • CDN
    • Universal SSL
    • WAF
    • +3 more
  • Pro$20/mo billed annually or $25/mo billed monthly
    • Fast DNS
    • Unmetered DDoS Protection
    • CDN
    • Universal SSL Certificate
    • Free Managed Ruleset
    • +7 more
  • Business$200/mo billed annually or $250/mo billed monthly
    • Fast DNS
    • Unmetered DDoS Protection
    • CDN
    • Universal SSL Certificate
    • Free Managed Ruleset
    • +8 more
  • ContractContact sales
as of verify ↗

Fission

Open sourceFree tier

Free, open source under Apache License

as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
macOS
Cloudflare Workers✓
Fission✗
Windows
Cloudflare Workers✓
Fission✗
Linux
Cloudflare Workers✓
Fission✗
CLI
Cloudflare Workers✓
Fission✓
Deployment
Self-hosted
Cloudflare Workers✓
Fission✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Cloudflare Workers

Not documented yet.

Fission

6 total
  • Kubernetes
  • Istio
  • Fluentd
  • Prometheus
  • Grafana
  • MCP
Independently observed
Still deciding?

Cloudflare Workers or Fission: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.