Microsoft Azure Functions logo
Microsoft Azure Functions

Serverless Functions With Azure Integration

Website
Documentation
Fly.io logo
Fly.io

PaaS for Edge Apps With Auto-Scaling

Website
Documentation
GitHub
Templates
Community

Microsoft Azure Functions vs Fly.io

Compare Service Types, Runtimes, Execution Limits, Compliance, Regions and Alternatives

Features

Microsoft Azure Functions
Service Types

Functions
Containers
Database
PaaS
Edge Compute
API as a Service

Fly.io
Service Types

Functions
Containers
Database
PaaS
Edge Compute
API as a Service

Microsoft Azure Functions
Functions Runtimes

.NET
C#
Crystal
Deno
Elixir
Go
Java
JavaScript
PHP
PowerShell
Python
Ruby
Rust

Fly.io
Functions Runtimes

.NET
C#
Crystal
Deno
Elixir
Go
Java
JavaScript
PHP
PowerShell
Python
Ruby
Rust

Microsoft Azure Functions
Container Runtimes

Docker
Docker Private Registry
Kubernetes
Managed Kubernetes

Fly.io
Container Runtimes

Docker
Docker Private Registry
Kubernetes
Managed Kubernetes

Microsoft Azure Functions
Execution Limits and Resource Quotas

Min. Memory
1536 MB
Max. Memory
4096 MB
Default Timeout
5 min
Max. Timeout
10 min
Request Payload
100 MB
Response Payload
100 MB

Fly.io
Execution Limits and Resource Quotas

Min. Memory
256 MB
Max. Memory
32 GB
Default Timeout
60 s
Max. Timeout
5 min
Request Payload
200 KB
Response Payload
∞

Microsoft Azure Functions
Compliance

BAA
DPA
GDPR
HIPAA
PHIPA
SOC2

Fly.io
Compliance

BAA
DPA
GDPR
HIPAA
PHIPA
SOC2

Microsoft Azure Functions
Regional Availability

Deployment Scope
8 Global
Regions
N/A
Points of Presence
100+

Fly.io
Regional Availability

Deployment Scope
Regional + Global
Regions
NA, LATAM, EU, MEA, APAC
Points of Presence
16, 5, 8, 1, 5

Alternatives are matched on service types, programming languages and container support

Dapr logo

Dapr

Docker Kubernetes C# Java JavaScript Python

Huawei Cloud FunctionGraph logo

Huawei Cloud FunctionGraph

Docker Kubernetes C# Java JavaScript Python

LocalStack logo

LocalStack

Docker Kubernetes C# Java JavaScript Python

Alibaba Cloud Function Compute logo

Alibaba Cloud Function Compute

Docker C# Java JavaScript Python

Microsoft Azure Functions logo
Microsoft Azure Functions
Fly.io
Fly.io logo

Compare Features, Languages, Execution Limits and Alternatives

Service Types

Installable Platform
Functions
Containers
Database
PaaS
IaC
Edge Compute
Local Emulator
API as a Service

Functions Runtimes

.NET
C#
Crystal
Deno
Elixir
Go
Java
JavaScript
PHP
PowerShell
Python
Ruby
Rust

Container Runtimes

Docker
Docker Private Registry
Docker Swarm
Kubernetes
Managed Kubernetes

Execution Limits and Resource Quotas

1536 MB
Min. Memory
256 MB
4096 MB
Max. Memory
32 GB
5 min
Default Timeout
60 s
10 min
Max. Timeout
5 min
100 MB
Request Payload
200 KB
100 MB
Response Payload
∞

Compliance

Certificates

Regional Availability

8 Global
Deployment Scope
Regional + Global
Regions
NA, LATAM, EU, MEA, APAC
100+
Points of Presence
16, 5, 8, 1, 5

Sustainabilty

Green Energy

Alternatives are matched on service types, programming languages and container support

Dapr logo

Dapr

Docker Kubernetes C# Java JavaScript Python

Huawei Cloud FunctionGraph logo

Huawei Cloud FunctionGraph

Docker Kubernetes C# Java JavaScript Python

LocalStack logo

LocalStack

Docker Kubernetes C# Java JavaScript Python

Alibaba Cloud Function Compute logo

Alibaba Cloud Function Compute

Docker C# Java JavaScript Python