Now supporting Angular · React · Vue · jQuery

Annotate Anything.
Ship Faster.

Finalize UI/UX logic 70% faster with our Offline Annotation Library. Reduce 70% of blueprinting effort. Supporting all frameworks, AI Agents, and Automation Testing—100% Offline.

$ npm install @fastann/core @fastann/angular

Everything you need

A complete annotation system designed for professional frontends.

Team Collaboration & UI/UX/Data Alignment

Pin UI/UX decisions, business logic, and data specs directly on screen elements so your team and clients review the exact same context, reducing technical documentation effort by over 70%.

Save 70% doc time

Onboarding & Guided Tours

Attach step-by-step hints directly to UI elements. Guide new users in context, without leaving the page. Support Multi Language.

AI Agent Ready — Database, Backend & Testing

Annotations carry full UX logic, data specs, and business rules that AI Agents can read directly to generate database schemas, backend APIs, and automation test cases — no extra documentation needed.

100% Offline Ready

No internet required. License verification runs in your own code path with no server calls, no latency, and no outage dependency.

Framework Agnostic

Angular, React, Vue, and jQuery with one core and zero lock-in.

See it for yourself

Real screens from a production deployment — annotations layer on top of your existing UI with zero layout changes.

Dashboard overview
User Comment
User Create Ann
Annotation panel
Approval flow
Try Live Demo

Up and running
in minutes

Install the core package and your framework wrapper, then add ann-cell-key to any element. That's it.

Full installation guide →
terminal
$ npm install @fastann/core @fastann/angular
# app.config.ts
import { ANN_API_URL, ANN_DOMAIN }
  from '@fastann/angular';
{ provide: ANN_API_URL,  useValue: '/api' },
// { provide: ANN_DOMAIN, useValue: 'yourapp.com' },
# any template
<td ann-cell-key="r1:revenue">
  {{ "{{" }} row.revenue {{ "}}" }}
</td>
Works with
Angular React Vue jQuery TypeScript

Ready to ship annotations?

Start free, upgrade to Pro when you need domain-locked licensing.