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About

The faster way to manage content. Headless CMS and API toolkit to help your team build modern apps faster, together. The Cosmic JS Headless CMS comes with all of the features your team needs to build content-powered apps faster and easier. Don't waste time building and maintaining your own CMS. We've already built the best CMS for you. Integrate content into any new or existing website or app using our API tools and resources. Launch projects faster by avoiding CMS maintenance. The best CMS for your team is ready to go. Cosmic JS provides developers the best tools to build modern, content-powered applications. Choose between fully CRUD-capable REST and GraphQL APIs. You can add the power of Cosmic JS to any new or existing codebase, regardless of programming language.

About

UnderPeaks is a developer-first headless CMS that generates production-ready Flutter and Next.js applications from a single content model. Founders define their data model once, and UnderPeaks generates real, readable source code for both a mobile app and a web app from that same schema. The platform supports five database backends — Supabase, PostgreSQL, MySQL, MongoDB, and Firebase — through a unified adapter layer, avoiding vendor lock-in. UnderPeaks is available as UnderPeaks Core, a free, open-source, self-hosted option, and as UnderPeaks Studio, a managed hosted platform. UnderPeaks is built by a solo founder based in George, South Africa, for developers and agencies building both mobile and web applications from the same underlying data.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Supported
iPad Supported
Android Supported
Chromebook Not Supported

Audience

Organizations that need a powerful headless CMS

Audience

Developers, self-hosters, indie hackers, small dev agencies, open-source enthusiasts, comapnies , freealancers

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$99 per month
Free Version Supported
Free Trial Not Supported

Pricing

$18/month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Supported
Webinars Supported
Live Online Supported
In Person Not Supported

Company Information

Cosmic JS
Founded: 2016
United States
www.cosmicjs.com

Company Information

UnderPeaks
Founded: 2026
South Africa
underpeaks.com

Alternatives

Alternatives

Cosmic Frog

Cosmic Frog

Optilogic
TekMindz

TekMindz

Samin TekMindz

Categories

Categories

Headless CMS Supported

Integrations

Contentful Supported
Crowdin Supported
Gatsby Supported
Google Analytics Supported
Mux Supported
OneSignal Supported
Resend Not Supported
WordPress Supported
X (Twitter) Supported

Integrations

Contentful Not Supported
Crowdin Not Supported
Gatsby Not Supported
Google Analytics Not Supported
Mux Not Supported
OneSignal Not Supported
Resend Supported
WordPress Not Supported
X (Twitter) Not Supported
Claim Cosmic JS and update features and information
Claim Cosmic JS and update features and information
Claim UnderPeaks and update features and information
Claim UnderPeaks and update features and information