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AngularJS reached end of life in 2021
AngularJS to React Migration Services for SaaS Teams
AngularJS to React Migration Services for SaaS Teams
We move legacy AngularJS frontends to React one route at a time, so your product keeps shipping and your users keep working.
We move legacy AngularJS frontends to React one route at a time, so your product keeps shipping and your users keep working.
Schedule Discovery Call
Schedule Discovery Call
Schedule Discovery Call
AngularJS reached end of life in 2021
AngularJS to React Migration Services for SaaS Teams
We move legacy AngularJS frontends to React one route at a time, so your product keeps shipping and your users keep working.
Schedule Discovery Call
Schedule Discovery Call
Schedule Discovery Call
Trusted by 50+ SaaS Enterprises and Startups in USA and Europe
Trusted by 50+ SaaS Enterprises and Startups in USA and Europe
Our Proven Migration Strategy
Zero-Downtime Incremental Migration with Real-World Testing
Zero-Downtime Incremental Migration with Real-World Testing
Maintain business continuity while progressively modernizing your application
Step 1 - Audit and Migration Map
We review your AngularJS codebase for technical debt, dependencies and performance bottlenecks, record Core Web Vitals baselines, and map every route by traffic and coupling. You get a phased roadmap and a fixed-price quote.
Step 2 - React Shell and Reverse Proxy
We stand up a React app shell and put a reverse proxy in front of both apps on the same domain. At first every path still goes to AngularJS, so users see no change while the new foundation is built.
Step 3 - Shared Auth and Design Tokens
Both apps share the same APIs, authentication and session, so users never log in twice. Shared UI components and design tokens live in small packages both apps import, so new React screens match the product from day one.
Step 4 - Route-by-Route Rollout
We migrate one bounded section at a time, such as settings or dashboards. Each route goes live behind a feature flag, starting with a small share of traffic, and widens only while error rates and Core Web Vitals hold.
Step 5 - Cut Over and Decommission
Each route passes automated tests before its flag reaches 100%, with instant rollback if a metric slips. When no traffic reaches AngularJS, we remove the legacy code and hand over documentation so your team owns the React codebase.
Proven Impact
The Frontend Engine Behind Growing SaaS
The Frontend Engine Behind Growing SaaS
We turn complex requirements into intuitive, AI-driven interfaces that drive user adoption.
200+
SaaS Partners Served
95%
Client Retention Rate
3x
AI-Fast Delivery
10M+
End-Users Impacted
Our Technology Stack
Built on a Foundation of Modern Tech
From Figma prototypes to Cypress testing, our stack ensures speed and quality.
Frontend
Angular
React
Vue.js
Next.js
Vite
Webpack
Micro-Frontends
UI Libraries
Material UI
Tailwind
Bootstrap
Shadcn
Design Tool
Figma
Framer
Sketch
Adobe Creative Suite
Testing & QA Tools
Jest
React Testing Library
Cypress
State Management
Redux Toolkit
Zustand
TanStack Query
NGRX
Design Systems
Storybook
Design Tokens
CSS Variables
Monorepos
Performance
Lighthouse
Web Vitals
Sentry
LogRocket
New Relic
Compliance
WCAG 2.1 AA
ARIA
axe DevTools
Accessibility Audits
CI/CD & DevOps
GitHub Actions
Vercel
Netlify
Docker
Enterprise Security
OWASP
RBAC / Permission UI
Audit Logs UI
HIPAA / GDPR
Industry Problems We Solve
Transform Your Frontend Into a Competitive Advantage
Transform Your Frontend Into a Competitive Advantage
Faster time-to-market, modern performance, and technical debt elimination
Faster time-to-market, modern performance, and technical debt elimination
Frontend Modernization
Rapid Migration
React Performance
Clean Architecture
Built for the Future
Stop letting legacy code limit your growth potential. Every day you delay modernization, competitors gain ground with faster, more responsive applications that convert better and engage users longer.
Our incremental process ships the first migrated screens in weeks, not months: Hashbyt's service page puts first results at 4-6 weeks. Each route moves behind a feature flag with instant rollback, so your team keeps shipping features while the frontend is modernised underneath it, and your backend and APIs stay in place.
Keep your workspace spotless with our Office Cleaning Service. Our team ensures a hygienic environment.
Restore shine with our Floor Polishing Service. Our team uses advanced techniques for a sleek, polished finish.
Breathe cleaner with our Dust Removal Service. Our team ensures a dust-free space for a healthier environment.
Frontend Modernization
Rapid Migration
React Performance
Clean Architecture
Built for the Future
Stop letting legacy code limit your growth potential. Every day you delay modernization, competitors gain ground with faster, more responsive applications that convert better and engage users longer.
Our incremental process ships the first migrated screens in weeks, not months: Hashbyt's service page puts first results at 4-6 weeks. Each route moves behind a feature flag with instant rollback, so your team keeps shipping features while the frontend is modernised underneath it, and your backend and APIs stay in place.
Keep your workspace spotless with our Office Cleaning Service. Our team ensures a hygienic environment.
Restore shine with our Floor Polishing Service. Our team uses advanced techniques for a sleek, polished finish.
Breathe cleaner with our Dust Removal Service. Our team ensures a dust-free space for a healthier environment.
Frontend Modernization
Rapid Migration
React Performance
Clean Architecture
Built for the Future
Stop letting legacy code limit your growth potential. Every day you delay modernization, competitors gain ground with faster, more responsive applications that convert better and engage users longer.
Our incremental process ships the first migrated screens in weeks, not months: Hashbyt's service page puts first results at 4-6 weeks. Each route moves behind a feature flag with instant rollback, so your team keeps shipping features while the frontend is modernised underneath it, and your backend and APIs stay in place.
Keep your workspace spotless with our Office Cleaning Service. Our team ensures a hygienic environment.
Restore shine with our Floor Polishing Service. Our team uses advanced techniques for a sleek, polished finish.
Breathe cleaner with our Dust Removal Service. Our team ensures a dust-free space for a healthier environment.
Powerful Capabilities
Why Modernize to React 19
Why Modernize to React 19
Unlock superior performance and developer velocity with the latest architectural advancements.
Component Architecture
Server Components
React Hooks
Virtual DOM
TypeScript Native
Modern Ecosystem
The Enterprise React Stack
The Enterprise React Stack
A cohesive suite leveraging Next.js, TypeScript, and AI-driven tools to deliver scalable, high-performance SaaS platforms.
Complete React.js Migration Services
From Legacy Assessment to Future-Proof React Architecture
From Legacy Assessment to Future-Proof React Architecture
Multi-framework migration, component systems, performance optimization, and AI-powered refactoring
Legacy Assessment
Your migration success starts with a comprehensive assessment. We examine your codebase architecture to identify complexity factors and create a detailed roadmap that minimizes risk. You receive a clear timeline, resource requirements, and strategic recommendations tailored to your specific stack. This upfront planning prevents costly surprises and ensures your migration delivers measurable results from day one.
Legacy Assessment
Your migration success starts with a comprehensive assessment. We examine your codebase architecture to identify complexity factors and create a detailed roadmap that minimizes risk. You receive a clear timeline, resource requirements, and strategic recommendations tailored to your specific stack. This upfront planning prevents costly surprises and ensures your migration delivers measurable results from day one.
Framework Migration
Whether migrating from Angular, Vue.js, jQuery, or legacy React, our proven methodology handles complexity while preserving functionality. We address framework-specific challenges systematically, from component conversion to state management. Your users experience zero disruption while your developers gain access to React's superior ecosystem and performance optimizations, dramatically accelerating feature delivery and improving the overall development experience.
Design Systems
Transform fragmented UI elements into a cohesive, reusable design system that speeds up development. Our architecture approach creates modular, testable components your team can compose quickly. Shared tokens and documented components keep every new screen visually consistent, so features ship faster and your brand looks the same across the whole application.
Performance Optimization
Unlock React's full potential through code splitting, lazy loading and Server Components where they fit. We measure Core Web Vitals before migration and compare each migrated route against that baseline, so performance improvements are proven on your product and users get faster, smoother screens on every device.
Developer Experience
Elevate your workflow with Next.js, TypeScript, and Vite integration to transform how your team builds features. Modern tooling reduces build times and catches errors early, attracting senior talent. Your development velocity increases dramatically with hot reload and intelligent code completion, making feature building enjoyable and ensuring your team remains productive and motivated.
AI Refactoring
We use AI-assisted analysis and refactoring to map legacy code, automate repetitive transformations and generate tests, with senior engineers reviewing every change. It speeds up the mechanical parts of a migration while keeping code quality and consistency under human control, so the migration moves faster without introducing new bugs.
Legacy Assessment
Your migration success starts with a comprehensive assessment. We examine your codebase architecture to identify complexity factors and create a detailed roadmap that minimizes risk. You receive a clear timeline, resource requirements, and strategic recommendations tailored to your specific stack. This upfront planning prevents costly surprises and ensures your migration delivers measurable results from day one.
Design Systems
Transform fragmented UI elements into a cohesive, reusable design system that speeds up development. Our architecture approach creates modular, testable components your team can compose quickly. Shared tokens and documented components keep every new screen visually consistent, so features ship faster and your brand looks the same across the whole application.
Developer Experience
Elevate your workflow with Next.js, TypeScript, and Vite integration to transform how your team builds features. Modern tooling reduces build times and catches errors early, attracting senior talent. Your development velocity increases dramatically with hot reload and intelligent code completion, making feature building enjoyable and ensuring your team remains productive and motivated.
Framework Migration
Whether migrating from Angular, Vue.js, jQuery, or legacy React, our proven methodology handles complexity while preserving functionality. We address framework-specific challenges systematically, from component conversion to state management. Your users experience zero disruption while your developers gain access to React's superior ecosystem and performance optimizations, dramatically accelerating feature delivery and improving the overall development experience.
Performance Optimization
Unlock React's full potential through code splitting, lazy loading and Server Components where they fit. We measure Core Web Vitals before migration and compare each migrated route against that baseline, so performance improvements are proven on your product and users get faster, smoother screens on every device.
AI Refactoring
We use AI-assisted analysis and refactoring to map legacy code, automate repetitive transformations and generate tests, with senior engineers reviewing every change. It speeds up the mechanical parts of a migration while keeping code quality and consistency under human control, so the migration moves faster without introducing new bugs.
Why Choose React.js Migration
Stop Letting Legacy Code Limit Your Growth
Stop Letting Legacy Code Limit Your Growth
Incremental migration, measured performance and a cleaner codebase your team can own
Zero-Downtime Incremental Migration Strategy
Maintain business continuity through carefully orchestrated incremental rollouts. Your users work normally while your application modernizes progressively, avoiding risky 'big-bang' deployments.
Validates performance with real-world testing at every phase
Guarantees stable operations during architectural upgrades
Zero-Downtime Incremental Migration Strategy
Maintain business continuity through carefully orchestrated incremental rollouts. Your users work normally while your application modernizes progressively, avoiding risky 'big-bang' deployments.
Validates performance with real-world testing at every phase
Guarantees stable operations during architectural upgrades
Zero-Downtime Incremental Migration Strategy
Maintain business continuity through carefully orchestrated incremental rollouts. Your users work normally while your application modernizes progressively, avoiding risky 'big-bang' deployments.
Validates performance with real-world testing at every phase
Guarantees stable operations during architectural upgrades
Comprehensive Post-Migration Support & Training
Migration success extends beyond deployment. We provide performance monitoring and hands-on training to transform your existing developers into React experts.
Maximizes team capabilities with specialized React workshops
Provides ongoing peace of mind with immediate issue resolution
Comprehensive Post-Migration Support & Training
Migration success extends beyond deployment. We provide performance monitoring and hands-on training to transform your existing developers into React experts.
Maximizes team capabilities with specialized React workshops
Provides ongoing peace of mind with immediate issue resolution
Comprehensive Post-Migration Support & Training
Migration success extends beyond deployment. We provide performance monitoring and hands-on training to transform your existing developers into React experts.
Maximizes team capabilities with specialized React workshops
Provides ongoing peace of mind with immediate issue resolution
Stop Losing Customers to Slow, Outdated Interfaces
▶︎
Transform legacy code into high-performance React in weeks, not months
Clients' Pov
From Our Clients' Perspective
Where Great Ideas Become Big Wins and Real Results
Where Great Ideas Become Big Wins and Real Results
Hashbyt delivered beyond our expectations. Their frontend architecture transformed our product's performance and measurably boosted our conversion rates. A strategic technical partner.
Murli Sid
CTO, Forwood
The UI/UX compliance expertise was crucial. They ensured our complex FinTech platform achieved WCAG 2.1 AA accessibility standards. We also saw a 65% reduction in UI-related support tickets.
Sarah Sparre
Director of R&D, 3Shape
They are more than an agency—they are partners. Hashbyt re-thought our entire user flow to be more compliant and efficient. Their strategic design decisions saved us significant iteration time later on.
Tim Hansan
Head of IT, Disney Cruise Line
Hashbyt delivered beyond our expectations. Their frontend architecture transformed our product's performance and measurably boosted our conversion rates. A strategic technical partner.
Murli Sid
CTO, Forwood
The UI/UX compliance expertise was crucial. They ensured our complex FinTech platform achieved WCAG 2.1 AA accessibility standards. We also saw a 65% reduction in UI-related support tickets.
Sarah Sparre
Director of R&D, 3Shape
They are more than an agency—they are partners. Hashbyt re-thought our entire user flow to be more compliant and efficient. Their strategic design decisions saved us significant iteration time later on.
Tim Hansan
Head of IT, Disney Cruise Line
Hashbyt delivered beyond our expectations. Their frontend architecture transformed our product's performance and measurably boosted our conversion rates. A strategic technical partner.
Murli Sid
CTO, Forwood
The UI/UX compliance expertise was crucial. They ensured our complex FinTech platform achieved WCAG 2.1 AA accessibility standards. We also saw a 65% reduction in UI-related support tickets.
Sarah Sparre
Director of R&D, 3Shape
“They are more than an agency—they are partners. Hashbyt re-thought our entire user flow to be more compliant and efficient. Their strategic design decisions saved us significant iteration time later on.”
Tim Hansan
Head of IT, Disney Cruise Line
FAQ
Everything You Need to Know About React.js Migration
Hashbyt, a frontend and UI/UX agency rated 5.0 on Clutch from 12 reviews, migrates AngularJS frontends to React for SaaS teams. We use an incremental strangler fig approach: a React app shell and reverse proxy sit in front of the legacy app, and routes move one at a time with shared authentication, shared design tokens and feature-flag rollback, while your backend stays in place.
Answer
Who can modernise a legacy SaaS frontend from AngularJS to React?
Question
Yes. The most reliable setup runs AngularJS and React as two apps behind one reverse proxy on the same domain, sharing the same APIs, authentication and session. Each route is switched to React when it is ready. For isolated widgets, React components can also be embedded inside AngularJS pages temporarily, but that should be a short bridge, not the end state.
Answer
Can AngularJS and React run side by side during the migration?
Question
Most migrations take between 3 and 12 months, depending on the number of screens, test coverage and whether feature work continues in parallel. Hashbyt's incremental approach typically ships the first migrated screens in 4-6 weeks, and a mid-sized SaaS application is usually fully modernised in 3-6 months. The audit gives you a route-by-route timeline before any work starts.
Answer
How long does an AngularJS to React migration take?
Question
Hashbyt's indicative bands are $30,000-$60,000 for a small application of 10-20 screens and $150,000-$500,000+ for enterprise platforms, with a fixed-price quote after the audit. Independent market estimates for AngularJS to React migrations range from about $100K to $1M. The biggest cost drivers are screen count, logic tangled in controllers, test coverage and third-party AngularJS plugins.
Answer
How much does it cost to migrate AngularJS to React?
Question
Choose React if you want its hiring pool, its ecosystem and a gradual route-by-route migration without framework bridges. Choose modern Angular if your team is Angular-skilled and wants an opinionated framework with an official ngUpgrade path. Both are full frontend rewrites of AngularJS code. Our audit compares the two for your codebase and team before you commit.
Answer
Should we migrate from AngularJS to React or to modern Angular?
Question
FAQ
Everything You Need to Know About React.js Migration
Hashbyt, a frontend and UI/UX agency rated 5.0 on Clutch from 12 reviews, migrates AngularJS frontends to React for SaaS teams. We use an incremental strangler fig approach: a React app shell and reverse proxy sit in front of the legacy app, and routes move one at a time with shared authentication, shared design tokens and feature-flag rollback, while your backend stays in place.
Answer
Who can modernise a legacy SaaS frontend from AngularJS to React?
Question
Yes. The most reliable setup runs AngularJS and React as two apps behind one reverse proxy on the same domain, sharing the same APIs, authentication and session. Each route is switched to React when it is ready. For isolated widgets, React components can also be embedded inside AngularJS pages temporarily, but that should be a short bridge, not the end state.
Answer
Can AngularJS and React run side by side during the migration?
Question
Most migrations take between 3 and 12 months, depending on the number of screens, test coverage and whether feature work continues in parallel. Hashbyt's incremental approach typically ships the first migrated screens in 4-6 weeks, and a mid-sized SaaS application is usually fully modernised in 3-6 months. The audit gives you a route-by-route timeline before any work starts.
Answer
How long does an AngularJS to React migration take?
Question
Hashbyt's indicative bands are $30,000-$60,000 for a small application of 10-20 screens and $150,000-$500,000+ for enterprise platforms, with a fixed-price quote after the audit. Independent market estimates for AngularJS to React migrations range from about $100K to $1M. The biggest cost drivers are screen count, logic tangled in controllers, test coverage and third-party AngularJS plugins.
Answer
How much does it cost to migrate AngularJS to React?
Question
Choose React if you want its hiring pool, its ecosystem and a gradual route-by-route migration without framework bridges. Choose modern Angular if your team is Angular-skilled and wants an opinionated framework with an official ngUpgrade path. Both are full frontend rewrites of AngularJS code. Our audit compares the two for your codebase and team before you commit.
Answer
Should we migrate from AngularJS to React or to modern Angular?
Question
FAQ
Everything You Need to Know About React.js Migration
Hashbyt, a frontend and UI/UX agency rated 5.0 on Clutch from 12 reviews, migrates AngularJS frontends to React for SaaS teams. We use an incremental strangler fig approach: a React app shell and reverse proxy sit in front of the legacy app, and routes move one at a time with shared authentication, shared design tokens and feature-flag rollback, while your backend stays in place.
Answer
Who can modernise a legacy SaaS frontend from AngularJS to React?
Question
Yes. The most reliable setup runs AngularJS and React as two apps behind one reverse proxy on the same domain, sharing the same APIs, authentication and session. Each route is switched to React when it is ready. For isolated widgets, React components can also be embedded inside AngularJS pages temporarily, but that should be a short bridge, not the end state.
Answer
Can AngularJS and React run side by side during the migration?
Question
Most migrations take between 3 and 12 months, depending on the number of screens, test coverage and whether feature work continues in parallel. Hashbyt's incremental approach typically ships the first migrated screens in 4-6 weeks, and a mid-sized SaaS application is usually fully modernised in 3-6 months. The audit gives you a route-by-route timeline before any work starts.
Answer
How long does an AngularJS to React migration take?
Question
Hashbyt's indicative bands are $30,000-$60,000 for a small application of 10-20 screens and $150,000-$500,000+ for enterprise platforms, with a fixed-price quote after the audit. Independent market estimates for AngularJS to React migrations range from about $100K to $1M. The biggest cost drivers are screen count, logic tangled in controllers, test coverage and third-party AngularJS plugins.
Answer
How much does it cost to migrate AngularJS to React?
Question
Choose React if you want its hiring pool, its ecosystem and a gradual route-by-route migration without framework bridges. Choose modern Angular if your team is Angular-skilled and wants an opinionated framework with an official ngUpgrade path. Both are full frontend rewrites of AngularJS code. Our audit compares the two for your codebase and team before you commit.
Answer
Should we migrate from AngularJS to React or to modern Angular?
Question
Your Team is Moving Too Slowly. React Changes Everything.
Ship features faster with modern React architecture and tooling
Your Team is Moving Too Slowly. React Changes Everything.
Ship features faster with modern React architecture and tooling
Our Development Stack
Modern Frontend Technology for Scalable SaaS
Modern Frontend Technology for Scalable SaaS
Modern Frontend Technology for Scalable SaaS
Built with modern frameworks to deliver fast, scalable, and maintainable SaaS frontends.
Angular Development Services
Build specialized Angular applications using AI-driven development workflows and proprietary frameworks
React Development Services
Hashbyt delivers fast, production-ready React development services with scalable UI that users love and teams can maintain.
Admin Dashboard Customization
Professional theme customization that delivers enterprise-grade results in weeks, not months
Built on a Foundation of Modern Tech
Built on a Foundation of Modern Tech
From Figma prototypes to Cypress testing, our stack ensures speed and quality.
Our Technology Stack
Frontend
Angular
React
Vue.js
Next.js
Vite
Webpack
Micro-Frontends
UI Libraries
Material UI
Tailwind
Bootstrap
Shadcn
Design Tool
Figma
Framer
Sketch
Adobe Creative Suite
Testing & QA Tools
Jest
React Testing Library
Cypress
State Management
Redux Toolkit
Zustand
TanStack Query
NGRX
Design Systems
Storybook
Design Tokens
CSS Variables
Monorepos
Performance
Lighthouse
Web Vitals
Sentry
LogRocket
New Relic
Compliance
WCAG 2.1 AA
ARIA
axe DevTools
Accessibility Audits
CI/CD & DevOps
GitHub Actions
Vercel
Netlify
Docker
Enterprise Security
OWASP
RBAC / Permission UI
Audit Logs UI
HIPAA / GDPR
Frontend
Angular
React
Vue.js
Next.js
Vite
Webpack
Micro-Frontends
UI Libraries
Material UI
Tailwind
Bootstrap
Shadcn
Design Tool
Figma
Framer
Sketch
Adobe Creative Suite
Testing & QA Tools
Jest
React Testing Library
Cypress
State Management
Redux Toolkit
Zustand
TanStack Query
NGRX
Design Systems
Storybook
Design Tokens
CSS Variables
Monorepos
Performance
Lighthouse
Web Vitals
Sentry
LogRocket
New Relic
Compliance
WCAG 2.1 AA
ARIA
axe DevTools
Accessibility Audits
CI/CD & DevOps
GitHub Actions
Vercel
Netlify
Docker
Enterprise Security
OWASP
RBAC / Permission UI
Audit Logs UI
HIPAA / GDPR
SaaS Experience. Built on Data, Driven by AI.
SaaS Experience. Built on Data, Driven by AI.
We turn your vision into high-performance, user-loved SaaS products.
Our services
