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OpenSourceAlternatives

Tag

rest-api

33 catalogue entries use this topic; each Project's license policy is labeled separately.

Strapi

Strapi

Open-source headless CMS turning content models into REST and GraphQL APIs.

Stars73.3K
Commitjust now
LicenseMIT (Community Edition); proprietary Enterprise Edition for ee/ components

Strapi is a self-hosted, open-source headless CMS built with JavaScript and TypeScript that turns content models designed in a no-code builder into REST and GraphQL APIs behind a customizable admin panel.

Alternative toPayloadKeystoneJS
Rocket.Chat

Rocket.ChatOpen

Self-hosted secure team chat for mission-critical organizations

Stars46.2K
Commitjust now
LicenseMIT

Rocket.Chat is a self-hosted team chat platform with a Slack data importer, end-to-end encryption, and cloud, on-premises, or air-gapped deployment.

Alternative toSlack
Payload

PayloadOpen

Code-first headless CMS and Next.js backend with an auto-generated admin panel.

Stars45.2K
Commitjust now
LicenseMIT

Payload is a code-first, self-hosted headless CMS for Next.js that generates an admin panel with REST and GraphQL APIs from TypeScript config.

Alternative toGhost
Bagisto

BagistoOpen

Open-source Laravel ecommerce platform for stores and marketplaces

Stars28.2K
Commitjust now
LicenseMIT

Bagisto is an open-source Laravel ecommerce platform for building online stores, multi-vendor marketplaces, and B2B portals.

Alternative toMedusaShopify
Typesense

Typesense

Fast, typo-tolerant open-source search engine

Stars26.9K
Commitjust now
LicenseGPL-3.0-only

Typesense is a fast, typo-tolerant open-source search engine for site, app and store search, with faceting, geo and vector search behind a clean API.

Alternative toElasticsearchAlgolia
Zulip

ZulipOpen

Open-source team chat with topic threads for focused teamwork

Stars26K
Commitjust now
LicenseApache-2.0

Zulip is an open-source team chat platform that organizes conversations into streams and topics so distributed teams can follow many discussions without losing track.

Alternative toSlack
Cube

CubeOpen

Open-source semantic layer for AI, BI, and embedded analytics

Stars21K
Commitjust now
LicenseApache-2.0

Cube Core is a self-hosted semantic layer that defines metrics and access rules once, then serves BI tools, apps, and AI agents over SQL, REST, and GraphQL.

Alternative toAppsmithRetool
Maxun

MaxunAIOpen

Open-source no-code platform that turns websites into structured APIs

Stars17.8K
Commitjust now
LicenseAGPL-3.0

Maxun is an open-source web data platform that turns websites into structured APIs through no-code robots, full-site crawling, search, change monitoring, and agent-ready SDKs.

Alternative toFirecrawl
LibreTranslate

LibreTranslate

Free and open-source machine translation API you can self-host.

Stars17K
Commitjust now
LicenseAGPL-3.0-only

LibreTranslate is a free, open-source machine translation API powered by Argos Translate that runs on your own server instead of a third-party cloud.

Alternative toTolgee
Spree Commerce

Spree CommerceOpen

Self-hosted headless commerce with a REST API and Next.js storefront

Stars15.8K
Commitjust now
LicenseBSD-3-Clause

Spree Commerce is an open-source headless ecommerce platform with a REST API, TypeScript SDK, and Next.js storefront covering B2B, marketplace, and cross-border stores.

Alternative toShopify
Grist

GristOpen

Spreadsheet UI over a relational database you can self-host

Stars11.9K
Commitjust now
LicenseApache-2.0

Grist is a spreadsheet with a relational database underneath: columns link records across tables, and formulas run in Python. Teams browse the same data as grids, cards, calendars, or charts.

Alternative toAirtable
Kutt

KuttOpen

Self-hosted open-source URL shortener with custom domains and link analytics

Stars11.1K
Commitjust now
LicenseMIT

Kutt is a self-hosted, MIT-licensed URL shortener with custom-domain support, per-link passwords and expiry, private click statistics, and a REST API.

Alternative toLua.sh
WooCommerce

WooCommerce

Open-source ecommerce plugin for WordPress

Stars10.5K
Commitjust now
LicenseGPL-2.0-or-later

WooCommerce is an open-source ecommerce plugin that turns a WordPress site into a self-hosted online store with payments, shipping, and a REST API.

Alternative toShopify
Traccar

TraccarOpen

Self-hosted GPS tracking with live maps, geofence alerts, and trip reports

Stars7,838
Commitjust now
LicenseApache-2.0

Traccar is a self-hosted GPS tracking platform that follows vehicles, assets, and phones in real time with live maps, geofence alerts, and trip reports.

Alternative toFleetBase
Zammad

ZammadOpen

Open-source helpdesk and customer support platform

Stars6,010
Commitjust now
LicenseAGPL-3.0

Zammad is an open-source helpdesk and customer support platform that unifies email, chat, phone, and social channels, with self-hosted or managed cloud operation under an AGPL-3.0 license.

Alternative toZendesk
Kan

Kan

Open-source kanban boards with a fast Trello import

Stars5,756
Commitjust now
LicenseMIT + AGPL-3.0

Kan is an open-source kanban board for tracking tasks and projects, positioned as a Trello alternative with a one-click importer.

Alternative toPlaneTrelloFocalboard
Kimai

KimaiOpen

Open-source time tracking with timesheets, reports, and invoices

Stars5,067
Commitjust now
LicenseAGPL-3.0

Kimai is a free open-source time tracker for freelancers, agencies, and companies that combines timers, calendar timesheets, and invoice generation in one web application.

Alternative toRescueTime
Easy!Appointments

Easy!AppointmentsOpen

Self-hosted appointment scheduler for services and providers

Stars4,407
Commitjust now
LicenseGPL-3.0

Easy!Appointments is a self-hosted web app for booking service appointments with providers, working plans, and Google Calendar sync.

Alternative toCalendlyCal.com
Chartbrew

Chartbrew

Self-hosted dashboard builder for live KPIs from databases and APIs

Stars4,064
Commitjust now
LicenseFSL-1.1-MIT

Chartbrew is a self-hosted dashboard platform that turns databases and APIs into live KPI charts, tables, and shared reports.

Alternative toApache Superset
bknd

bkndOpen

Embeddable TypeScript backend with data, auth, and media

Stars3,767
Commitjust now
LicenseApache-2.0

bknd is a backend toolkit that runs inside a JavaScript application instead of beside it. Developers define data entities, authentication, media storage, and scheduled workflows in code, and bknd serves them through generated REST endpoints plus a built-in admin dashboard.

Alternative toFirebase
WordPress

WordPress

Open-source publishing platform and CMS running millions of websites

Stars3,482
Commitjust now
LicenseGPL-2.0

WordPress is a self-hosted open-source publishing platform and CMS for blogs and business sites.

Alternative toContentful
EspoCRM

EspoCRMOpen

Self-hosted open-source CRM for sales, marketing, and support

Stars3,438
Commitjust now
LicenseAGPL-3.0

EspoCRM is a self-hosted, open-source CRM that tracks leads, contacts, deals, support cases, and marketing campaigns in one web app.

Alternative toHubSpotSalesforce
OpenWebAnalytics

OpenWebAnalytics

Self-hosted open-source web analytics with full data ownership

Stars2,694
Commitjust now
LicenseGPL-2.0

OpenWebAnalytics is a GPL-licensed web analytics framework that site owners host on their own PHP and MySQL servers to track visitors with full data ownership.

Relaticle

RelaticleAIOpen

Self-hosted CRM your AI agents can work in

Stars1,761
Commitjust now
LicenseAGPL-3.0

Relaticle is a self-hosted, open-source CRM that tracks companies, people, deals, tasks, and notes, and lets AI assistants act on that data.

Alternative toHubSpotSalesforce
Taiga

TaigaOpen

Free open-source agile project management for cross-functional teams

Stars857
Commitjust now
LicenseMPL-2.0

Taiga is a free, open-source project management platform for cross-functional agile teams, with Scrum and Kanban boards, self-hosting via Docker, and managed cloud plans.

Alternative toTrelloJira
Structr

Structr

Graph-based low-code platform for building custom web apps and backends

Stars828
Commitjust now
LicenseAGPL-3.0-or-later

Structr is a self-hosted low-code platform on a graph database for modeling data, APIs, pages, and workflows into custom apps.

Alternative toDirectus
Openinary

OpeninaryOpen

Self-hosted open-source media platform for image and video upload, transform, delivery

Stars412
Commitjust now
LicenseAGPL-3.0

Openinary is a self-hosted, AGPL-licensed media platform that uploads, transforms, and delivers images and video from your own S3-compatible storage.

Alternative toGarage
Marble CMS

Marble CMSOpen

Simple API-first headless CMS for blogs

Stars384
Commitjust now
LicenseAGPL-3.0

Marble CMS is an open-source, API-first headless CMS for blogs, pairing a Markdown editor and media library with a REST API and Next.js and Astro integrations.

Alternative toContentful
Lua.sh

Lua.sh

Open-source URL shortener with custom domains, analytics, and QR codes

Stars344
Commitjust now
LicenseAGPL-3.0-or-later

Lua.sh is an AGPL-3.0-or-later licensed, self-hosted URL shortener on Laravel and Vue 3, with custom domains, click analytics, QR codes, and an OAuth API.

Tiledesk

TiledeskOpen

Open-source live chat and AI agents for customer support

Stars321
Commitjust now
LicenseMIT

Tiledesk is an open-source live-chat and AI chatbot platform with a no-code design studio, knowledge-base RAG, and human-agent handoff.

Alternative toIntercom
ShipShipShip

ShipShipShipOpen

Self-hosted changelog and roadmap with community voting

Stars301
Commit6mo ago
LicenseApache-2.0

ShipShipShip is a self-hosted changelog and roadmap app where teams publish product updates and users vote on upcoming features.

Alternative toFider
Reflet

Reflet

Open-source feedback boards with voting, AI triage, and roadmaps

Stars39
Commitjust now
LicenseSSPL-1.0

Reflet is an open-source feedback platform where users submit requests, vote on priorities, and follow public roadmaps and changelogs from collection to shipped release.

Alternative toFider
Sayr

Sayr

Project management and customer feedback portal in one self-hosted tool

Stars29
Commitjust now
LicenseSustainable Use License 1.0

Sayr is a source-available project manager that pairs issue tracking and roadmaps with a customer feedback portal with voting and changelogs.

Alternative toLinear