0.8s
Load time
SaaS site rebuild
A ground-up rebuild cut load time by 62% and lifted trial signups 28%.
Read case study →★★★★★ 4.9/5HTML5 specialists15+ years
Feature-rich experiences built with HTML5
High-performing, secure and scalable HTML5 web and mobile experiences — apps, games, widgets and migrations, engineered to last.
Cross-platformRuns everywhere
98%Client retention
1,200+Projects shipped
↑
0.6s
Load time
★
98
Lighthouse
Load time
0.6s
▼ fast
Uptime
99.9%
last 90d
Test coverage
92%
▲
Deploys
240
this year
RequestsErrors
Top itemMetricResultΔ
API latencyp95120ms▲
Bundle sizegzip-38%▲
LighthouseScore98▲
By the numbers
The impact we deliver
1,200+
Websites & apps shipped
500+
Brands launched
98%
Client retention
15+ yrs
Building for the web
How we add value
One codebase, everywhere
HTML5 lets us build rich, interactive experiences that run across devices and browsers — semantic, accessible and fast.
1
Runs everywhereCross-platform experiences from one modern codebase.
2
Rich & interactiveVideo, audio, games and real-time built in.
3
Accessible & SEO-readySemantic, WAI-ARIA-compliant markup.
Why HTML5
HTML5 powers the modern, app-like web
From video and real-time features to offline storage and geolocation, HTML5 enables rich experiences without heavy plugins. We build clean, semantic, high-performance HTML5.
Get started ↗Why Website Pandas
Modern, semantic HTML5 — fast, accessible, app-like experiences that work everywhere.
15+
Years in business
500+
Brands scaled
98%
Client retention
What we do
HTML5 Development Services We Offer
We apply innovation to our work, delivering results for brands and businesses we’ve worked with worldwide.
1
HTML5 Development Services for Apps
We configure unique software development solutions while creating HTML5-based enterprise-class web app solutions. We build structured layouts with multimedia plugins, flexible media querying techniques, and HTML coding app features.
Get started →2
HTML5 Development Services for Web
We develop websites using HTML5, CSS3, and JavaScript for a seamless experience across devices. We also create strategies for fluid grids, layouts, and media queries powered by frameworks like Backbone.js.
Explore our web development services →3
HTML5 Consulting Services
Our consultants offer full-cycle and high-level consulting solutions and optimal HTML5 development services. We also offer efficient cross-platform solution support and modern, optimal web development solutions for your business.
Get started →4
HTML5 Mobile Apps Development
Our expertise lies in creating cutting-edge and revolutionary mobile apps and experiences using several HTML5-based frameworks, including AngularJS, PhoneGap, Backbone.js, ReactJS, Ember.js, Node.js, SproutCore, and Sencha.
Get started →5
Migration to HTML5 Services
We can migrate from legacy platforms like Flash to HTML5 and modify code from Flash to create dynamic, responsive HTML5 apps and website architectures, benefitting from the native features of HTML5.
Get started →6
Cross-Platform Engineering in HTML5
We develop mobile apps on various platforms through standardized web technologies such as HTML5, CSS3, and JavaScript. We use Ember.js, AngularJS, and PhoneGap for a smooth multi-screen experience.
Get started →7
HTML5 Software Integration and Connectivity
We use HTML5 apps to link existing legacy systems to new ones. The API layer enables smooth communication. Linking of HTML5 with .NET and C# allows software to connect seamlessly.
Get started →8
HTML5 UI Design and Prototyping
Our user interface design and prototyping services use advanced web technology in HTML5. We create user interfaces that are user-friendly and visually appealing and work well across various platforms and devices.
Get started →9
HTML5 Widgets Development
Our HTML5-powered solutions, for instance developer widgets and cloud programming services, offer practical, tailored experiences that enable effective user interaction and integration across different platforms or devices.
Get started →10
HTML5 Games Development
We develop desktop or mobile-responsive games and integrate HTML5 audio and video. These include poker, fantasy sports, blackjack, solitaire, and others. We develop new UI/UX or enhance existing software.
Get started →11
HTML5 Support and Maintenance
Through our maintenance and support services, we ensure your application stays user-friendly and bug-free. Our dependable and experienced developers upgrade the software for improved performance.
Get started →Planning an HTML5 project?
Get a free technical consultation and a clear plan.
The fundamentals
Why Opt for HTML5 Development?
HTML5 enhances website structure, semantics, media, and SEO for organic traffic.
Video and Audio Integration
HTML5 offers baked-in video and audio elements, eliminating the need for distracting plugins like Flash and offering playback that’s seamless across any user’s operating system.
Semantics
Using HTML5’s semantic elements can enhance the organization and accessibility of your web content, positively impacting your search ranking and user experience.
Web Accessibility Initiative
HTML5 offers Web Accessibility Initiative attributes like WAI-ARIA, which make web applications easier to use and more accessible to all.
WebSockets
With HTML5, this offers real-time communication between a client and a server, enabling faster, more compact data exchanges for web applications that demand it.
Web Storage
The web storage APIs enable developers to store data on user’s devices, improving the performance of web applications that frequently run searches.
Geolocation API
This API integrated into HTML5 allows you to use your users’ location data and develop location-based services and more personalized experiences for your web apps.
Cleaner Code
HTML5 drives cleaner, more semantic code structures and makes your codebase more maintainable and easier to understand and optimize for search engines.
Better Website Interactions
Enable better HTML5 website interactions with Canvas animations and touch events that allow the users a more immersive and intuitive experience rather than static content.
SEO-Friendly
HTML5’s semantic markup language supports search engine visibility, so your websites show up higher in search results, making your life a bit more comfortable.
Why Website Pandas
What makes us different
98
Lighthouse
Average performance score across our HTML5 builds.
98%
Retention
Clients stay because the numbers keep climbing, quarter after quarter.
100%
You own it
Your accounts, data and history stay yours — no hostage situations.
15+
Years
A decade and a half of category-tested playbooks across 500+ brands.
100+
Projects a year
Shipped across web, commerce, apps and campaigns.
48h
Response
Senior strategists — not junior account reps — reply within 48 hours.
“HTML5 is the backbone of the modern web. Used well — semantic, accessible, fast — it delivers app-like experiences that work everywhere, and we build to that standard.”
Ankur Goyal ✔ Verified
Founder & CEO, Website Pandas
How we work
Our HTML5 Development Process
Our strong process ensures that your HTML5 application is built for scale.
1
Project Discovery
Our thorough exploration of the project goals, requirements, and target audience serves as the foundation of all our HTML5 projects.
2
Wireframing and Prototyping
Our visual and interactive blueprints ensure that the project is refined step by step to ensure all deliverables are understood and approached strategically.
3
HTML/CSS Coding
A proper, clean, and effective translation of design into HTML and CSS ensures the best coding is done as per the project requirements, focusing on quality.
4
Cross-Browser Compatibility Testing
Through rigorous testing across browsers, we ensure the continuity of the project no matter the platform. This ensures all issues are addressed and tackled.
5
Launch and Deployment
Our high-quality plan and approach ensure that the launch and deployment of finalized HTML5 projects are smooth and fast to ensure on-time delivery.
6
Post-Launch Support
This proper approach to our HTML5 projects involves support after launching to guarantee fast resolutions to any issues even after the project has been launched.
No black boxes
What’s included in your build
Everything that ships with your project — built, tested and documented.
HTML5 build
Modern and semantic.
Performance
Fast and light.
Accessibility
WAI-ARIA compliant.
Integrations
Connected to your stack.
Cross-platform
Runs everywhere.
SEO structure
Built to rank.
Documentation
Clear handover.
Support
Ongoing care.
You own the code
Full ownership.
Real results, real builds
Results that speak for themselves
A few of our favourite launches — every number tied to a real build.
+34%
Conversion rate
eCommerce replatform
Migrating to a custom store lifted conversion 34% and average order value 12%.
Read case study →61→98
Lighthouse score
Brand & site refresh
A redesign took performance from 61 to 98 and halved bounce rate.
Read case study →Let’s build something exceptional together
Get a free consultation and a clear, no-pressure plan.
Trusted by 500+ growing brands across every industry
What our clients say
Trusted by founders & product teams
★★★★★
“They rebuilt our site and it has never been faster — and our team can finally update it ourselves without breaking anything.”
Priya NairProduct Lead
★★★★★
“Our new store looks incredible and actually converts. The migration was seamless — zero downtime, no lost data.”
Daniel RosseCommerce Owner
★★★★★
“Our brand finally feels premium. They were endlessly patient through revisions until the logo was exactly right.”
Sofia MartelFounder
★★★★★
“A rock-solid WordPress build with zero downtime since launch. They feel like an extension of our team, not a vendor.”
James TurnerOperations Director
Why an agency — and why us
DIY vs. a typical agency vs. us
| In-house / DIY | Typical agency | Website Pandas | |
|---|---|---|---|
| Dedicated senior designers & developers | Stretched thin | Often junior | ✓ |
| Custom build — no templates or page-builders | Templates | Sometimes | ✓ |
| Performance, SEO & accessibility audited pre-launch | ✕ | Rarely | ✓ |
| You own the code, design & source files | ✓ | Sometimes | ✓ |
| Transparent scope & no long lock-in | — | ✕ | ✓ |
| Ongoing support & maintenance after launch | DIY | Add-on | ✓ |
How we work together
What every engagement includes
No black boxes and no lock-in — just senior people, a clear plan, and full ownership for you.
Every HTML5 Development engagement
- ✓ Dedicated senior strategist on your account
- ✓ A custom strategy built around your goals
- ✓ Live dashboard + transparent monthly reporting
- ✓ Continuous, revenue-focused optimisation
- ✓ No long-term lock-in — we earn your business
- ✓ You own all accounts, data & work
We start with a free audit and a clear plan — you only move forward if the opportunity is real.
★★★★★
4.9/5
Rated by 200+ clients
- ✓ 500+ brands scaled
- ✓ $300M+ revenue driven
- ✓ 15+ years of expertise
- ✓ Free audit before you commit
Industry experience
Built for your industry
Fifteen years across dozens of sectors means we start with what already works in your space.
eCommerce & Retail
Conversion-first stores that scale.
Healthcare
Compliant, trust-building sites.
Legal
Authority sites that win cases.
Real Estate
Listings and lead capture that convert.
Home Services
Booking-ready sites for local demand.
Restaurants
Menus, ordering and reservations.
B2B & SaaS
Product sites that drive pipeline.
View all industries
See every sector we serve →
Ready to build something exceptional?
Get a free consultation and a clear plan for your project.
Questions, answered
HTML5 Development FAQs
What is HTML5 development? +
Building web and mobile experiences using HTML5 — rich, semantic, cross-platform front-ends.
HTML vs HTML5? +
HTML5 adds native video/audio, semantics, offline storage, real-time and more — a big leap forward.
Can I hire a dedicated developer? +
Yes — dedicated HTML5 developers are available.
How do you track progress? +
Regular demos and a transparent project board.
Do you provide support? +
Yes — after-sales support and maintenance.
From the studio
View all ↗
Latest insights
Low-risk by design
Starting with us is easy
No upfront risk and no long contracts — just senior people accountable to your results from day one.
Free audit firstSee the opportunity before you commit.
No long contractsMonth to month — we earn it.
You own your accountsYour data and history, always.
48-hour responseSenior strategists, fast.
Get in touch
Get your free HTML5 Development audit
Tell us where you want to grow. We’ll respond within 48 hours with a clear, no-pressure plan.
Why teams choose us
Accountable to your growth.
Certified specialists, transparent reporting, and a relentless focus on the metrics that move your business.
- ✓ Certified Google & Meta specialists
- ✓ Live reporting & full transparency
- ✓ 500+ brands scaled, $300M+ driven
- ✓ Free audit first — no long-term lock-in