Awesome Oss Alternatives

hoppscotch/hoppscotch

Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia

Stack

TypeScript Axum Express NestJS Svelte Cargo Go modules npm

GitHub topics

#api #api-client #api-rest #api-testing #developer-tools #graphql

Updated: 2026-06-22
Lists: 7 list mentions
First commit: 2019-08-21
License: MIT
Issues: 758 open

79,608

stars

Forks: 5,929
Commits: 6,134 commits
Star growth, last 7 days: +51 +0.1%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

strapi/strapi

🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.

AI dev

Stack

TypeScript React Vite npm Yarn

GitHub topics

#api #cms #cms-framework #content-management #content-management-system #customizable

Updated: 2026-06-22
Lists: 5 list mentions
First commit: 2015-09-30
License: NOASSERTION
Issues: 573 open

72,424

stars

Forks: 9,748
Commits: 37,376 commits
Star growth, last 7 days: +21 0.0%
Commit velocity, last 7 days: +34 +0.1%

Website GitHub

meilisearch/meilisearch

A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.

AI dev

Stack

Rust Actix Web Rocket Cargo

GitHub topics

#ai #api #app-search #database #enterprise-search #faceting

Updated: 2026-06-22
Lists: 5 list mentions
First commit: 2018-04-22
License: NOASSERTION
Issues: 297 open

58,229

stars

Forks: 2,578
Commits: 14,265 commits
Star growth, last 7 days: +94 +0.2%
Commit velocity, last 7 days: +168 +1.2%

Website GitHub

directus/directus

The flexible backend for all your projects 🐰 Turn your DB into a headless CMS, admin panels, or apps with a custom UI, instant APIs, auth & more.

AI dev

Stack

TypeScript Express Fastify Vite Vue npm pnpm

GitHub topics

#api #app #cms #composable #data-visualization #database

Updated: 2026-06-22
Lists: 2 list mentions
First commit: 2020-02-05
License: NOASSERTION
Issues: 375 open

36,045

stars

Forks: 4,791
Commits: 13,741 commits
Star growth, last 7 days: +14 0.0%
Commit velocity, last 7 days: +5 0.0%

Website GitHub

bitwarden/server

Bitwarden infrastructure/backend (API, database, Docker, etc).

AI dev

Stack

C# ASP.NET Core Entity Framework Cargo .NET SDK npm

GitHub topics

#api #aspnet #aspnetcore #bitwarden #csharp #docker

Updated: 2026-06-22
Lists: 3 list mentions
First commit: 2015-12-09
License: NOASSERTION
Issues: 219 open

19,257

stars

Forks: 1,675
Commits: 7,390 commits
Star growth, last 7 days: +51 +0.3%
Commit velocity, last 7 days: +4 +0.1%

Website GitHub

apache/apisix

The Cloud-Native API Gateway and AI Gateway

AI dev

Stack

Lua Cobra Express gRPC Go Spring Boot Go modules Maven npm

GitHub topics

#ai-gateway #api #api-gateway #api-management #apisix #cloud-native

Updated: 2026-06-22
Lists: 3 list mentions
First commit: 2019-04-10
License: Apache-2.0
Issues: 279 open

16,760

stars

Forks: 2,884
Commits: 4,987 commits
Star growth, last 7 days: +25 +0.1%
Commit velocity, last 7 days: +9 +0.2%

Website GitHub

amplication/amplication

Amplication brings order to the chaos of large-scale software development by creating Golden Paths for developers - streamlined workflows that drive consistency, enable high-quality code practices, simplify onboarding, and accelerate standardized delivery across teams.

Stack

TypeScript Express NestJS React Vite npm

GitHub topics

#api #code-generation #csharp #csharp-code #dotnet #dotnet-core

Updated: 2026-06-22
Lists: 1 list mention
First commit: 2020-02-26
License: NOASSERTION
Issues: 660 open

16,008

stars

Forks: 1,549
Commits: 26,152 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

manticoresoftware/manticoresearch

Easy to use open source fast database for search | Good alternative to Elasticsearch | Drop-in replacement for E in the ELK stack

Stack

C++ Cargo CMake Go modules

GitHub topics

#api #bm25 #cpp #database #full-text-search #hacktoberfest

Updated: 2026-06-22
Lists: 3 list mentions
First commit: 2003-11-19
License: GPL-3.0
Issues: 701 open

11,825

stars

Forks: 629
Commits: 13,731 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

Sylius/Sylius

Headless open-source eCommerce platform on top of PHP/Symfony/API Platform

AI dev

Stack

PHP Symfony Composer npm

GitHub topics

#api #api-ecommerce #ecommerce #ecommerce-platform #framework #hacktoberfest

Updated: 2026-06-22
Lists: 3 list mentions
First commit: 2011-09-09
License: MIT
Issues: 274 open

8,489

stars

Forks: 2,164
Commits: 40,768 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

go-vikunja/vikunja

The to-do app to organize your life.

AI dev

Stack

Go Cobra Electron Express Tailwind CSS Go modules pnpm

GitHub topics

#api #golang #project-management #self-hosted #todo #todoapp

Updated: 2026-06-22
Lists: 3 list mentions
First commit: 2018-06-10
License: AGPL-3.0
Issues: 235 open

4,559

stars

Forks: 511
Commits: 14,351 commits
Star growth, last 7 days: +37 +0.8%
Commit velocity, last 7 days: +65 +0.5%

Website GitHub

svix/svix-webhooks

The open source and enterprise-ready webhooks service 🦀

Stack

Rust Axum Express pytest Bundler Cargo Composer

GitHub topics

#api #background-jobs #background-tasks #event-driven #hacktoberfest #kafka

Updated: 2026-06-21
Lists: 3 list mentions
First commit: 2021-02-14
License: MIT
Issues: 60 open

3,264

stars

Forks: 255
Commits: 3,611 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

firecamp-dev/firecamp

Developer-first OpenSource API DevTool, Postman/Insomnia alternative.

Stack

TypeScript Electron NestJS React Tailwind CSS Cargo npm pnpm

GitHub topics

#api #api-client #graphql #graphql-playground #hacktoberfest #hacktoberfest2023

Updated: 2026-03-04
Lists: 2 list mentions
First commit: 2022-09-20
License: AGPL-3.0
Issues: 105 open

2,599

stars

Forks: 167
Commits: 2,146 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

apioo/fusio

Self-Hosted API Management for Builders

Stack

PHP Composer

GitHub topics

#ai #ai-agents #api #api-gateway #api-management #api-manager

Updated: 2026-06-04
Lists: 4 list mentions
First commit: 2013-11-24
License: Apache-2.0
Issues: 170 open

2,096

stars

Forks: 238
Commits: 1,965 commits
Star growth, last 7 days: -3 -0.1%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

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