HTTPie
Insomnia REST
cURL
Hoppscotch
Postman
RapidAPI for Mac
jq
FileZilla
Loadster
Loader.io
k6 Cloud
LoadForge
LoadUIWeb
LoadFocus
Loadium
OctoPerf
Loadster is a cloud-based load testing and synthetic monitoring platform for engineers who want to know how their applications behave under real traffic.
Tests run with three types of bots: Protocol Bots for HTTP testing, headless Browser Bots that render full pages and execute JavaScript in real Chrome browsers, and Playwright bots for when you want to use Playwright JS directly.
Loadster scripts can be recorded from Chrome or Firefox with the Loadster Recorder extension, edited in a built-in editor with variables, datasets, and shared includes, and then replayed from multiple cloud regions.
Each test run returns detailed page timings (TTFB, FCP, LCP, CLS, etc) alongside resource waterfalls, screenshots, and full traces you can step through in a self-hosted trace viewer. Tests scale from a handful of virtual users (bots) to hundreds of thousands across distributed cloud engines without you provisioning anything.
The same scripts can be set up as monitors that run on a schedule from chosen regions. Notification policies route incidents to email, SMS, voice, or integrations like Slack and PagerDuty. Projects, roles, and shared test history keep teams aligned on what passed, what failed, and what changed.
Pricing is usage-based via Loadster Fuel, with 50 free units on sign-up and no credit card to start.
LoadsterBased on our record, HTTPie seems to be more popular. It has been mentiond 56 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Postman dominated API development for over a decade because it made REST discovery, testing, and documentation accessible without deep command-line expertise. But 2026 has flipped that advantage. The rise of CLI-native, scriptable, and programmatic API toolingโdriven by projects like Arc, HTTPie, and cURL's modern revitalizationโhas made the terminal the preferred workspace for 68% of backend engineers (per the... - Source: dev.to / 11 days ago
You may like https://httpie.io/ if you've not memorised all the curl flags already. The CLI tools way of making requests with headers and post bodies is really nice in my opinion `http PUT pie.dev/put X-API-Token:123 name=John`. - Source: Hacker News / 5 months ago
For developers who prefer command-line interfaces, HTTPie offers an elegant alternative to curl with superior offline capabilities. The --offline flag enables request construction and validation without network transmission. - Source: dev.to / 10 months ago
Curl's UX is very dated and I wouldn't recommend it to any new user. Use many alternatives like httpie [1] or something like curlie [2] which is just an UX wrapper around the same libcurl. Httpie also has a postman-like web interface. 1 - https://httpie.io/. - Source: Hacker News / 10 months ago
For developers who prefer terminal-based workflows, HTTPie offers a more user-friendly alternative to curl while maintaining the efficiency of command-line tools. Its intuitive syntax and colorized output make API testing from the terminal more accessible and productive. - Source: dev.to / over 1 year ago
Insomnia REST - Design, debug, test, and mock APIs locally, on Git, or cloud. Build better APIs collaboratively for the most popular protocols with a devโfriendly UI, built-in automation, and an extensible plugin ecosystem.
Loader.io - Loader.io is a simple cloud-based load testing service
cURL - cURL is a computer software project providing a library and command-line tool for transferring data...
k6 Cloud - Managed load testing service built on top of the popular open-source project k6.
Hoppscotch - Open source API development ecosystem
LoadForge - Better, cheaper load testing for websites, APIs and servers
