fiber vs serverless
Two of the top projects in Backend and cloud templates, side by side: who leads on each score part and who each one suits, then setup, license, activity and what each review found.
fiber
Express-style HTTP web framework for Go, built on fasthttp
serverless
CLI that deploys AWS Lambda code and infrastructure from serverless.yml
Verdict
fiber ranks higher, 90 to 88. Of the 4 score parts we measure for both, fiber leads on 1, serverless on 1 and 2 are even.
- Adoptionserverless leads by 3 points, 95 to 92: close to even.
- FreshnessEven at 100.
- Maintenancefiber leads by 8 points, 97 to 89.
- Agent-readyEven at 30.
Pick fiber if you are
Go developers building HTTP APIs and web backends
- Express-like routing, groups and middleware chain, familiar to Node.js developers
- Built-in middleware for static files, logger, CORS, rate limiter, plus WebSocket and SSE
Pick serverless if you are
Engineers deploying APIs, tasks and agents to AWS Lambda
- Declares Lambda functions, events and DynamoDB/S3/API Gateway resources in one serverless.yml
- Dev Mode routes real stage traffic to local code without redeploying
| What we compare | fiber | serverless |
|---|---|---|
| Score parts, out of 100 | ||
| Adoption | 92, widely used | 95, widely used |
| Momentum | Not scored for this kind | Not scored for this kind |
| Freshness | 100, active | 100, active |
| Maintenance | 97, healthy | 89, healthy |
| Agent-ready | 30, minimal | 30, minimal |
| Facts from GitHub and the README | ||
| Stars | 40.3k | 46.9k |
| License | MIT (permissive) | custom license (read the license) |
| Last commit | Nov 2026 | Nov 2026 |
| Last release | Nov 2026 | Oct 2026 |
| Language | Go | JavaScript |
| Docker | No | No |
| GPU | Not needed | Not needed |
| arm64 or Apple Silicon | Not stated | Not stated |
fiber
Fiber is a Go web framework with an Express-like API for routing, middleware and handlers, running on top of fasthttp. It ships middleware for static files, logging, CORS and rate limiting, plus WebSocket, Socket.io and Server-Sent Events support, and can adapt net/http handlers. It is a general backend framework, not an AI project.
Who it is for: Go developers building HTTP APIs and web backends
Strengths
- Express-like routing, groups and middleware chain, familiar to Node.js developers
- Built-in middleware for static files, logger, CORS, rate limiter, plus WebSocket and SSE
- Runs net/http handlers directly and has an adaptor middleware for net/http middleware
- Zero-allocation design on fasthttp, with TechEmpower benchmark results published
Weaknesses
- fiber.Ctx values are reused across requests, so keeping references after the handler returns is unsafe
- Uses unsafe, so it may lag behind the newest Go releases
- Requires Go 1.26 or higher for v3
- Adapted net/http handlers lose fiber.Ctx features and add compatibility overhead
- Go
- Needs Go 1.26+, fasthttp
serverless
The Serverless Framework is a Node.js CLI that reads a serverless.yml file and deploys functions, event triggers and supporting AWS resources such as DynamoDB, S3 and API Gateway. V.4 adds web apps on Lambda, MCP server hosting, Bedrock AgentCore definitions, a Dev Mode that runs local code against deployed traffic, and bundled agent skills. The repository root is under a proprietary license, with the MIT code in packages/serverless.
Who it is for: Engineers deploying APIs, tasks and agents to AWS Lambda
Strengths
- Declares Lambda functions, events and DynamoDB/S3/API Gateway resources in one serverless.yml
- Dev Mode routes real stage traffic to local code without redeploying
- Supports Node.js, Python, Java, Go, .NET, Ruby and other Lambda runtimes
- Over 1,000 plugins; several popular ones now built in, such as custom domains
Weaknesses
- V.4 requires login to Serverless Dashboard; CLI free only for small orgs
- Non-AWS providers deprecated in V.4; focus is AWS only
- Mixed licensing: proprietary root license, MIT only in packages/serverless
- Self-updates automatically every 24 hours by default
- JavaScript, Amazon Bedrock
- Needs Node.js 18.17.0+, AWS account, Serverless Dashboard login
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