Top 12 Open-Source Alternatives to cURL

Product categories

API API Tools APIs Automated Testing CLI Chrome Extensions Command Line Tools Configuration Management Curl Developer APIs Developer Tools Proxy

Summary

The top open-source alternatives to cURL are Insomnia REST, Postman, and HTTPie. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Insomnia REST Landing Page
1

Insomnia REST

The most intuitive cross-platform REST API Client ð´
Pricing:
- Open Source
#API Tools #API #Developer Tools 120 social mentions
Postman Landing Page
2

Postman

The Collaboration Platform for API Development
Pricing:
- Open Source
#APIs #API Tools #Developer Tools 27 social mentions
HTTPie Landing Page
3

HTTPie

CLI HTTP that will make you smile. JSON support, syntax highlighting, wget-like downloads, extensions, and more.
Pricing:
- Open Source
#CLI #Command Line Tools #Curl 46 social mentions
Hoppscotch Landing Page
4

Hoppscotch

Open source API development ecosystem
Pricing:
- Open Source
- Freemium
- Free Trial
#Web App #Productivity #APIs 77 social mentions
lftp Landing Page
5

lftp

lftp is a command-line file transfer program which besides FTP, also supports FTPS, HTTP, HTTPS...
Pricing:
- Open Source
#SSH #File Transfer #CLI 6 social mentions
Requester Landing Page
6

Requester

HTTP client plugin for Sublime Text with an expansive feature set, modern UX, elegant syntax and...
Pricing:
- Open Source
#API Tools #Developer Tools #APIs
mitmproxy Landing Page
7

mitmproxy

mitmproxy is an SSL-capable man-in-the-middle proxy for HTTP.
Pricing:
- Open Source
#Developer Tools #Security #Software Development 81 social mentions
Postwoman Landing Page
8

Postwoman

An online, open source API request builder
Pricing:
- Open Source
#API Tools #Developer Tools #APIs 5 social mentions
GraphQL Landing Page
9

GraphQL

GraphQL is a data query language and runtime to request and deliver data to mobile and web apps.
Pricing:
- Open Source
#Developer Tools #Web Frameworks #JavaScript Framework 223 social mentions
httpbin(1) Landing Page
10

httpbin(1)

HTTP request and response service
Pricing:
- Open Source
#Developer Tools #Proxy #Testing 53 social mentions
Flagsmith Landing Page
11

Flagsmith

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.
Pricing:
- Open Source
- Freemium
- Free Trial
#Feature Flags #Developer Tools #Configuration Management 13 social mentions
Apache APISIX Landing Page
12

Apache APISIX

Apache APISIX is a dynamic, real-time, high-performance Cloud-Native API gateway, based on the Nginx library and etcd.
Pricing:
- Open Source
#Monitoring Tools #API Tools #APIs 63 social mentions