Run code without managing servers, pay only for compute time
Visit WebsiteTL;DR - AWS Lambda
- AWS Lambda lets you run code without provisioning servers-just upload your function and it scales automatically
- It executes code in response to events from 200+ AWS services, charging only for compute time used
- Free tier includes 1M requests/month, then $0.20 per million requests
Pricing: Paid only
Best for: Enterprises & pros
4.6/5 across review platforms
Pros & Cons
Pros
- Industry-standard serverless platform
- Integrates with entire AWS ecosystem
- Scales automatically to any load
- Pay only for compute time used
- Supports many languages and runtimes
Cons
- Cold starts can affect latency
- Complex pricing model
- 15-minute execution time limit
- Debugging can be challenging
- Vendor lock-in with AWS services
Ratings Across the Web
4.6(1,079 reviews)
Ratings aggregated from independent review platforms. Learn more
Key Features
Serverless computeEvent-drivenAuto-scalingPay-per-useMultiple runtimesAWS integration
Pricing Plans
Free Tier
$0
- 1M free requests/month
- 400,000 GB-seconds compute
- Never expires
- Included with AWS account
Pay-as-you-go
$0.20/million
- $0.20 per 1M requests
- $0.0000166667/GB-second (x86)
- Memory from 128 MB to 10 GB
- Billed per millisecond
Graviton2 (ARM)
$0.16/million
- 34% better price performance
- $0.0000133334/GB-second
- Same functionality as x86
- Recommended for cost savings
Savings Plans
Up to 17% off
- 1 or 3 year commitment
- Compute Savings Plans
- Flexible across regions
- Significant discount
What is AWS Lambda?
Lambda runs your code without servers to manage. Upload a function, configure a trigger, and AWS handles scaling, patching, and availability. You pay only when code executes.
Functions respond to HTTP requests, process queue messages, react to database changes-any event can trigger execution. The runtime handles everything except your business logic.
Lambda changed how developers think about backends. Instead of maintaining servers, you write functions and let AWS handle the rest.
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AWS Lambda FAQ
Is Lambda free?
Generous free tier: 1 million requests and 400,000 GB-seconds per month forever. Many small applications run entirely within free tier.
What is AWS Lambda?
Lambda is AWS's serverless compute service. Run code without managing servers. Pay only for compute time used. Scales automatically.
Lambda vs EC2?
Lambda is serverless with no server management. EC2 gives full control but requires management. Lambda for events and APIs; EC2 for long-running workloads.
What languages does Lambda support?
Node.js, Python, Java, C#, Go, Ruby, and custom runtimes. Node.js and Python are most popular. Can bring any language via custom runtime.
What are Lambda cold starts?
Cold start is delay when Lambda initializes a new container. Can be 100ms to several seconds depending on runtime. Keep functions warm for latency-sensitive apps.
Source: aws.amazon.com