Headless CMS + CRM
It's a headless CMS and a ready-made backend for your website: content, contact forms, leads and data — in one service and one API
With our service you can manage your website from a single system
OneCore
OneCore
Headless CMS, forms and CRM for your website in one API. A backend for developers and agencies — without the limits of website builders
Your project in OneCore
Pages
Tables
Data
Forms
Sections
Analytics
Settings
Fields
Users
Your project in OneCore
Pages
Tables
Data
Forms
Sections
Analytics
Settings
Fields
Users
Your project in OneCore
Pages
Tables
Data
Forms
Sections
Analytics
Settings
Fields
Users
API
Endpoints
Your website
Frontend
Lead
Try for free
One service
All the tools to manage your project in a single service
Enterprise-grade security
Your data is reliably protected by modern mechanisms:
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Content Security Policy (CSP)
blocks the loading of malicious scripts
HTTP Strict Transport Security (HSTS)
encrypts connections
X-Frame-Options
protects against clickjacking attacks
X-Content-Type-Options
protects against MIME sniffing
Automatic backups
database and files are backed up automatically
Cost savings
Lower development and maintenance costs for your website's backend
No need to pay for multiple services
WebSocket notifications
Instant real-time updates on new leads.
Leads in Telegram and email
New lead notifications go to your Telegram bot and email. Set up in a couple of clicks
Easy integration and flexible setup
Launch a project in a few clicks and configure the system to fit your needs
Who is it for?
Freelancers and web studios
A ready-made backend and admin panel for every client website
Developers
Headless CMS and API for Nuxt, Next, React or Vue frontends
Business owners
Website leads in the CRM, Telegram and email — none get lost
Marketers
Collect data and boost conversion with analytics and CRM
Features: CMS, forms, CRM and API
Public API
Access content and global settings through a secure API, available in your account.
API
Endpoints
Fetching forms
File uploads
Filtering and search
Collections
Pagination
Pages
Submitting a lead
Global content
Sections
Settings
Validation
Role-based access model
Add users to your account and assign them permissions and roles
Contact forms
Each form has its own separate analytics
Build your own forms from scratch Ready-made templates (feedback, sales, surveys, quizzes and more)
Admin panel for site content
Flexible management of pages, sections and global blocks with support for any field type — from text to a color picker.
CRM for website leads
All website leads in one place: statuses, assignees, comments, change history and export
Lead statuses
Comments
Assignees
Analytics
Form builder
Change history
Export leads
What you can build with OneCore
A single OneCore project covers your website's entire backend. Here are the tasks it is most often connected for.
- Contact form for your website
Build a form in the form builder — fields, validation, file uploads — and submit it from your site via the API. No server, PHP script or mail service needed: the lead is saved to the CRM and a notification goes to your email. Works for any form on your site: contact, order, booking, survey or quiz.
- Website leads in Telegram
Connect the OneCore bot and every new lead arrives in Telegram with the project name and form data. No need to write and maintain your own Telegram bot for leads. Notifications can be duplicated to email so no lead gets lost.
- CRM for website leads
Leads from all forms and websites are collected in one place. Assign owners, change statuses, leave comments, view change history and per-form analytics. Export leads to Excel in one click.
- CMS and admin panel for any frontend
OneCore is a headless CMS: pages, sections and global blocks with any fields are edited in the admin panel, and your site gets content via the API. Build the frontend with Nuxt, Next, React, Vue or Flutter. Developers don't need to build an admin panel, and clients edit texts and images themselves — with the permissions you give them.
- Website data without your own database
Product catalog, services, reviews, job openings — create a collection with the fields you need and it is instantly available via the API with filters, search and pagination. No separate database or server required.
Lead saved to CRMPricing
After signing up for OneCore, the free "Started" plan is activated automatically
Number of pages
Sections per page
Number of data tables
Number of forms
Shared data block
API requests per month
Analytics
Real-time leads
Number of users
Storage space
Frequently asked questions
It's a core for your website. You create an account, connect forms, store data, create content, collect leads, and view analytics.
A regular CMS (WordPress, Bitrix) stores content and renders the site itself. A headless CMS delivers content via API, and you build the site with anything: Nuxt, Next, React, Vue or a mobile app. OneCore is a headless CMS with built-in forms, a lead CRM and data collections, so you don't need to write a separate backend.
Create a form in OneCore and submit it from your site via the API. Every lead lands in the CRM, and a notification goes to your Telegram bot and email. The bot connects in a couple of clicks.
A CMS manages site content: pages, texts, images. A CRM manages leads and clients: statuses, assignees, history. Usually these are two separate services you have to connect. In OneCore content and leads live in one project: a form on your site instantly creates a lead in the CRM.
For websites — yes. Firebase and Supabase give you a database, but you have to build the admin panel, forms, CRM and lead notifications yourself. OneCore has all of this out of the box: content, forms, leads, data collections and an API. Free plan forever.
It covers the backend part of your projects. You only build the frontend — with any technology (Nuxt, Next, React, Vue, Flutter or anything else) — while the APIs are already ready for you inside ONECORE. This removes the need to spend time and money on backend development, lowers the cost of launching, and lets you keep scaling the project further — without rewriting the database or the logic.
Entrepreneurs, studios and developers who need to quickly launch projects, MVPs, landing pages, funnels and services — without backend engineers, while saving on budget.
No. It's a backend platform. The frontend can be anything: Nuxt, Next, React, Vue or Flutter.
Yes, you create tables with fields — just like in a database — and use them through the API.
Yes. You can register an account and run your project (website) in it.
For the frontend — yes. For the backend — no.