Cloud Computing · head to head
Azure Functions vs Go
Azure Functions
Cloud Computing
Event-driven serverless compute on Azure
- From
- On request
- Rated
- -
Go
Cloud Computing
Build fast, reliable, and efficient software at scale
- From
- Free
- Rated
- -
The short version
- Only Go has a free tier, so it costs nothing to try first.
- Each has a real cost: Azure Functions consumption plan free grant is capped at 1 million executions and 400,000 GB-seconds of resource consumption per month per subscription, billed per GB-second beyond that; Go no built-in generic types until recent versions, requiring workarounds for type-safe collections
Where they differ
Only the attributes on which Azure Functions and Go actually diverge.
| Attribute | Azure Functions | Go |
|---|---|---|
| Starting price | On request | Free |
| Pricing model | subscription | open-source |
| Free tier | No | Yes |
| Platforms | Web | Windows, Linux, macOS |
| Founded | Unknown | 2009 |
Identical on both: user rating (Not yet rated), category (Cloud Computing).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Azure Functions
Nothing recorded that Go does not also cover.
Only in Go
- Goroutines
- Channels
- Garbage collection
- Cross compilation
- Fast compilation
- Simple syntax
- Built-in testing
- Reflection
What people use each for
The jobs each tool is most often brought in to do.
Azure Functions
No use cases recorded yet. See the Azure Functions review.
Go
- Cloud infrastructure and microservicesnot Azure Functions
- Command-line tools and utilitiesnot Azure Functions
- API servers and backend servicesnot Azure Functions
- DevOps and system automation toolsnot Azure Functions
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Azure Functions
- Consumption plan free grant is capped at 1 million executions and 400,000 GB-seconds of resource consumption per month per subscription, billed per GB-second beyond that
- The newer Flex Consumption plan's free grant is smaller still, at 250,000 executions and 100,000 GB-seconds per month
- Premium plan avoids per-execution charges but bills continuously for allocated core seconds and memory regardless of invocation volume
- Memory is rounded up to the nearest 128 MB and execution time to the nearest 1 ms for billing, so small overages round upward
Go
- No built-in generic types until recent versions, requiring workarounds for type-safe collections
- Error handling through explicit return values considered verbose compared to exception-based approaches
- Smaller standard library compared to Python or Java; requires external packages for common tasks
- Package management can create version conflicts and dependency hell issues
Pricing, plan by plan
Azure Functions
On requestNo published plan breakdown. See the Azure Functions review.
Go
FreeNo published plan breakdown. See the Go review.
Which should you pick?
Choose Azure Functions if
Nothing in the data separates Azure Functions from Go on the points above - pick on price and on how each one feels to use.
Choose Go if
- You need goroutines.
- You want to start without paying.
- You work on Windows, Linux, macOS.
- You also want channels.
Questions people ask
- Is Azure Functions or Go better?
- Neither clearly leads. Azure Functions starts at On request and Go at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Azure Functions or Go?
- Go has a free tier; the other does not. Paid plans start at On request for Azure Functions and Free for Go.
- Does Azure Functions or Go run on more platforms?
- Azure Functions runs on Web. Go runs on Windows, Linux, macOS.
- Can I use Go for free?
- Yes. Go has a free tier, so you can try it without paying. Azure Functions starts at On request.
- What can Azure Functions do that Go cannot?
- Go covers Goroutines, Channels, Garbage collection, Cross compilation.