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Introduction to CV Builder

CV Builder is a sophisticated, full-stack resume building application that empowers users to create professional, ATS-friendly resumes without compromising on privacy. Built with modern web technologies, it offers a seamless form-based editing experience with real-time preview, multiple template options, and robust version control.

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Why CV Builder?

Privacy-First

Work entirely in guest mode with local storage persistence, or sync to the cloud when ready

Professional Templates

Choose from multiple professionally designed templates optimized for ATS systems

Version Control

Save, manage, and restore multiple resume versions with metadata and tags

Auto-Save

Never lose progress with automatic draft persistence and conflict resolution

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Key Features

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Core Functionality

Intuitive form-based interface with real-time preview. No design skills required. Edit your resume sections with a clean, organized form layout while watching changes appear instantly in the preview panel.
Choose from three professionally designed templates:
  • Default: Clean, modern layout with traditional structure
  • Rhyhorn: Bold, contemporary design with visual impact
  • Nexus: Minimalist, ATS-optimized format
Generate ATS-friendly PDFs with proper A4 formatting and professional spacing using @react-pdf/renderer for production-quality output.
Save named versions with descriptions and tags. Restore any previous version instantly with automatic backup before restore operations.

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Resume Sections

CV Builder supports comprehensive resume sections to showcase your professional profile:
  • Personal Information: Name, contact details, professional summary, social links
  • Experience: Work history with company, role, dates, and descriptions
  • Education: Academic background with degree details
  • Projects: Portfolio projects with tech stack highlights
  • Achievements: Certifications, awards, and recognitions
  • Languages: Language proficiency levels
  • Skills: Technical and professional skill categories
  • References: Reference statements
All sections are reorderable and can be hidden from the final resume. The personal information section is always displayed first.

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Architecture Overview

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Tech Stack

CV Builder is built with cutting-edge technologies for optimal performance and developer experience: 
{
  "dependencies": {
    "next": "16.1.6",
    "react": "19.2.3",
    "typescript": "^5",
    "firebase": "^12.8.0",
    "tailwindcss": "^4",
    "@react-pdf/renderer": "^4.3.2",
    "react-hook-form": "^7.71.1",
    "zod": "^4.3.6",
    "framer-motion": "^12.29.2"
  }
}

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Frontend Stack

TechnologyVersionPurpose
Next.js16.1.6React framework with App Router
React19.2.3UI library with React Compiler
TypeScript5.xType-safe development
Tailwind CSS4.xUtility-first styling
Framer Motion12.29.2Animations and transitions

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Forms & Validation

TechnologyVersionPurpose
React Hook Form7.71.1Form state management
Zod4.3.6Schema validation

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Backend & Services

TechnologyVersionPurpose
Firebase12.8.0Authentication & Firestore database
@react-pdf/renderer4.3.2PDF generation
@google/generative-ai0.24.1AI-powered assistance

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Project Structure

CV-Builder/
├── app/                    # Next.js App Router pages
│   ├── api/                # API routes
│   ├── editor/             # Resume editor page
│   ├── resumes/            # Resume list page
│   ├── templates/          # Template preview page
│   └── page.tsx            # Landing page
├── components/             # React components
│   ├── forms/              # Form section components
│   ├── home/               # Landing page sections
│   ├── preview/            # Live preview & PDF
│   ├── templates/          # Template system
│   └── ui/                 # Reusable UI primitives
├── hooks/                  # Custom React hooks
├── lib/                    # Core library & utilities
│   ├── backend/            # Backend services
│   ├── firebase.ts         # Firebase configuration
│   ├── cvService.ts        # CV CRUD operations
│   └── types.ts            # TypeScript type definitions
├── public/                 # Static assets
└── ...config files

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Data Model

The core data structure is defined in lib/types.ts:
lib/types.ts
export interface CVData {
  personalInfo: PersonalInfo;
  experience: Experience[];
  education: Education[];
  projects: Project[];
  achievements: Achievement[];
  languages: Language[];
  skills: Skill[];
  sectionOrder: SectionId[];
  references: string;
  hiddenSections: SectionId[];
  template?: TemplateId;
}

export type TemplateId = 'default' | 'rhyhorn' | 'nexus';

export interface CVVersion {
  id: string;
  userId: string;
  data: CVData;
  versionName: string;
  description?: string;
  tags?: string[];
  createdAt: Date;
  isAutoSave: boolean;
}
The CVData interface is the foundation of the entire application. All form inputs, preview rendering, PDF generation, and database operations work with this structure.

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User Experience

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Guest Mode

CV Builder offers full functionality without authentication:
  • All data stored in browser localStorage
  • No account required to create resumes
  • Instant start - no signup friction
  • Perfect for quick resume creation or privacy-conscious users
Guest mode data is stored locally in your browser. Clearing browser data will delete your resumes. Consider signing in to sync your data to the cloud.

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Authenticated Mode

When signed in with Firebase Authentication:
  • Cloud Sync: Your resumes are saved to Firestore
  • Version Control: Create and restore named versions
  • Multi-Device: Access your resumes from any device
  • Conflict Resolution: Smart merging when local drafts conflict with cloud data

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Auto-Save & Conflict Resolution

The application implements intelligent auto-save with three-way merge conflict resolution:
lib/backend/cvThreeWayMerge.ts
export interface MergeResult {
  merged: CVData;
  conflicts: FieldConflict[];
  hasConflicts: boolean;
}
When conflicts are detected between local drafts and cloud data, users are presented with a clear UI to resolve differences field-by-field.

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What’s Next?

Quickstart

Get from clone to your first resume in 5-10 minutes

Installation

Detailed setup instructions with troubleshooting

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