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Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)
45K starsJun 19, 2026 pushcoding-agentsJavaScriptDeveloper Tools
$ npx skills add usebruno/brunoAlternatives
Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.
Current skill
Sendria (formerly MailTrap) is a SMTP server designed to run in your dev/test environment, that is designed to catch any email you or your application is sending, and display it in a web interface instead of sending to real world.
Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)
$ npx skills add usebruno/brunoAutomated auditing, performance metrics, and best practices for the web.
$ npx skills add GoogleChrome/lighthouseSearch UI components for React and Vue
$ npx skills add appbaseio/reactivesearchPlatform to build admin panels, internal tools, and dashboards. Integrates with 25+ databases and any API.
$ npx skills add appsmithorg/appsmithA React Framework for building internal tools, admin panels, dashboards & B2B apps with unmatched flexibility.
$ npx skills add refinedev/refineCollection of handy online tools for developers, with great UX.
$ npx skills add CorentinTh/it-toolsLightning-fast and Powerful Code Editor written in Rust
$ npx skills add lapce/lapceA modern file manager that helps users organize their files and folders.
$ npx skills add files-community/FilesJavaScript API for Chrome and Firefox
$ npx skills add puppeteer/puppeteerAPI Documentation Browser
$ npx skills add freeCodeCamp/devdocsOpen-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia
$ npx skills add hoppscotch/hoppscotchSWE-agent takes a GitHub issue and tries to automatically fix it, using your LM of choice. It can also be employed for offensive cybersecurity or competitive coding challenges. [NeurIPS 2024]
$ npx skills add SWE-agent/SWE-agentD2 is a modern diagram scripting language that turns text to diagrams.
$ npx skills add terrastruct/d2The first real AI developer
$ npx skills add Pythagora-io/gpt-pilotA scalable, distributed, collaborative, document-graph database, for the realtime web
$ npx skills add surrealdb/surrealdbA reactive notebook for Python — run reproducible experiments, query with SQL, execute as a script, deploy as an app, and version with git. Stored as pure Python. All in a modern, AI-native editor.
$ npx skills add marimo-team/marimoHow to choose
Use an alternative when it has a clearer install path, higher trust score, fresher maintenance, or better platform fit for your current agent stack. Keep Sendria if it already passes your workflow test and repository review.
Next step
Open the compare page, test the install commands in a sandbox, and check each repository before using a skill in production.