Fast, dependency-free websites — HTML5 done properly.
Hand-coded HTML5, CSS3 and vanilla JavaScript for landing pages, microsites and marketing sites that load instantly, need no framework overhead, and are simple for anyone to host.
- HTML5 & vanilla web development
- Email & newsletter HTML
- HTML accessibility & standards
- Ownership
- You own everything, fully assigned
- Capabilities included
- 17+
Fixed price, agreed in writing.
Everything html5 development should include — and usually doesn’t.
Semantic, accessible markup
Proper HTML structure that screen readers, search engines and future developers can all make sense of.
No framework overhead
Zero build step, zero JS bundle bloat — just fast, direct-to-browser pages where that's genuinely the right fit.
Responsive by default
CSS Grid and Flexbox layouts that work from a 375px phone to a 27-inch monitor without a separate 'mobile version'.
SEO-ready structure
Clean semantic markup and schema baked in from the first file, not retrofitted.
Pixel-accurate builds
Your Figma or PSD file, rebuilt exactly — spacing, type and colour matched precisely.
Cross-browser tested
Checked across real browsers and devices before handover, not just Chrome on a laptop.
Watch your site take shape, week by week.
Clickable previews every week while senior engineers hand-build your site — performance and SEO checked before you ever see it.
- PageSpeed 90+ signed into the contract
- Schema & technical SEO from the first commit
- Weekly demo links — steer while it's cheap
The team serious brands pick for html5 development.
We deliver html5 development as part of one accountable in-house team — designers, developers and marketers in the same room — across the USA, UK, Canada, UAE, Australia and India. Fixed prices agreed in writing, and you own everything we produce.
Fixed quotes, kept promises
The price you approve is the price you pay — scope changes are agreed in writing before they cost anything.
Senior engineers only
No juniors learning on your budget. The people who quote your project build it.
90+ PageSpeed as standard
Performance budgets are in the contract, not the sales pitch.
You own everything
Code, repos, accounts, designs — full IP assignment from day one.
Weekly clickable demos
See real progress every week; steer while steering is cheap.
A team, not a ticket queue
Named engineers and one point of contact for the whole project — not a different freelancer every sprint.
Trusted by teams across six markets
Why html5 development is one of the smartest investments you’ll make.
Not a cost to minimise — money that comes back, in ways you can point to a year from now.
Lower running costs
Clean, update-safe code and right-sized hosting mean fewer emergency fixes and smaller bills for years, not just at launch.
Built to be found
SEO foundations from the first commit mean the site starts earning organic traffic instead of paying for every visitor.
Grows without a rebuild
Architecture chosen for where you're headed, not just where you are — so success doesn't force a rewrite in year two.
Your team can run it
A CMS or admin your people actually understand cuts your dependency on a developer for every small change.
Fixed price protects your budget
The quote you approve is the price you pay — no scope creep eating a budget you'd earmarked elsewhere.
You own the asset outright
Full IP assignment means the site is a business asset on your books, not something you rent from an agency.
How we deliver html5 development — step by step.
Discover & plan
We dig into your goals, market and competitors, then agree scope, timeline and success metrics before any code is written.
Design & prototype
Wireframes become polished, on-brand designs you approve up front — no surprises at launch.
Build & test
Senior engineers build in weekly sprints with previews you can click, plus QA across devices and browsers.
Launch & grow
We deploy, monitor and hand over cleanly — then keep optimising with data from real users.
The stack behind our html5 development.
Proven, boring-in-a-good-way technology — chosen for speed, security and long-term maintainability, not résumé décor.
HTML5Semantic markup
JavaScriptProgressive interactivity
NetlifyStatic hostingHTML5 Development packages & pricing.
Fixed quotes, no hourly surprises — these are honest starting points; your exact quote is itemised free within one business day.
Starter
A landing page, done properly
- Up to 3 hand-coded pages
- Responsive HTML5/CSS3 build
- Cross-browser & device testing
- Basic SEO & meta setup
- Form handling & validation
- 30-day post-launch support
Growth
A microsite that loads instantly
- Up to 8 pages, fully responsive
- Custom-coded, no framework bloat
- Semantic markup + schema
- Sub-second load performance
- Cross-browser QA
- 90-day support
Scale
Multi-page marketing sites
- Unlimited static pages
- Vanilla JS interactivity
- Lightweight CMS layer (optional)
- Advanced performance budget
- Deployment to any static host
- SLA-backed support options
Prices are honest starting points for typical scope — complex projects are quoted precisely, and the quote is always free.
What lands in your hands.
- Semantic HTML5 markup
- Responsive CSS (Grid/Flexbox)
- Cross-browser & device testing
- Basic SEO & meta setup
- Form handling & validation
- Deployment to any host
Don’t see something you need on this list? Ask — we’ll tell you honestly whether it’s in scope, and quote it if it is.
Signed into every html5 development engagement.
Fixed quote, no surprises
The approved price is the final price for the agreed scope.
On-time delivery
A dated sprint plan on day one — and we keep it.
30-day post-launch support
Bugs and tweaks after launch are on us, not on a new invoice.
Your IP, fully assigned
Everything we make for you belongs to you. In writing.
HTML5 Development insights, free to steal.
The same thinking we bill for, written up properly — guides our clients read before (and after) hiring us.
17 things we do inside this service.
Not a menu of upsells — this is the scope we work within. If what you need is on this list, it’s in the quote. If it isn’t, ask and we’ll tell you honestly whether we’re the right people.
Web Development — the full scope.
Every capability below is work we do in-house. Nothing is subcontracted, and nothing is a placeholder for a conversation about scope later.
- In-house team only
- One accountable contact
- 17 capabilities, quoted upfront
HTML5 & vanilla web development
Framework-free builds for the projects that genuinely don't need one.
What that covers
- Semantic HTML5 page building
- Responsive CSS with Grid and Flexbox
- Landing page and microsite development
- Figma / PSD to HTML conversion
- Legacy static site modernisation
Email & newsletter HTML
Bulletproof HTML email that survives Outlook and every other client.
What that covers
- Responsive HTML email templates
- Mailchimp & Klaviyo template coding
- PSD / Figma to email conversion
- Dark-mode & client compatibility testing
- AMP for email
- Editable modular email systems
HTML accessibility & standards
Clean, semantic markup that passes audits and works with assistive tech.
What that covers
- Semantic HTML5 structure
- WCAG & ARIA accessibility markup
- Schema.org microdata & JSON-LD
- Cross-browser compatibility fixes
- W3C validation & clean-up
- Print & PDF-friendly stylesheets
Often combined with
These sit in the same discipline and are usually scoped together — one team, one timeline, one invoice.
Your html5 development project, stage by stage.
Most agency process diagrams describe the agency. This one describes what lands in your inbox — because that’s the part you can hold us to.
Discovery & architecture
Before anything is designed, we work out what the thing has to do, what it has to talk to, and what would make it fail.
- Audit of the existing site, data and integrations
- Data model and API contracts agreed in writing
- Technical decisions documented with the reasoning, not just the choice
- Scope written down and priced — fixed before work starts
Design & prototype
Something clickable before anything is built, because changing a prototype costs hours and changing a build costs weeks.
- Wireframes for the flows that carry the most traffic
- High-fidelity design in Figma, on-brand and responsive
- Component library so later pages stay consistent
- Accessibility checked at design stage (WCAG 2.2 AA), not retrofitted
Build
Work ships to a staging link continuously, so you're never waiting until the end to see progress.
- Staging environment live from week one
- TypeScript end to end — type errors caught before they ship
- Version control with reviewable history
- Weekly progress you can look at, not a status email
Testing & review
The stage most agencies compress. We test on real devices and fix what we find before you see it.
- Cross-browser and real-device testing, not just a desktop resize
- Performance measured against Core Web Vitals thresholds
- Accessibility audit — keyboard, screen reader, contrast
- Forms, payments and integrations tested end to end
Launch
Planned rather than hoped. Redirects mapped first, because a launch that loses rankings costs more than it delivered.
- 301 redirect map from every old URL
- DNS, SSL and email deliverability verified before cutover
- Analytics and Search Console configured and confirmed reporting
- Rollback plan agreed in advance
After launch
Thirty days of fixes at no charge, then whatever ongoing support genuinely suits you — or none.
- 30 days of post-launch fixes included
- Handover session, plus documentation you keep
- All accounts, code and assets transferred to you
- Optional retainer — no lock-in, 30 days' notice
The AI we actually use.
Not a list of logos to look current. Each of these does a specific job on real client work — and where a model isn’t the right tool, we say so rather than reaching for it.
Research, drafting and analysis
ClaudeAnthropicLong-context code review, technical writing
ChatGPTOpenAIContent drafting, competitor research
GeminiGoogleMultimodal — screenshots, video, spreadsheets
Workflow and integration
ZapierNo-code actionsForm-to-CRM routing, lead notifications
n8nOpen-source flowsSelf-hosted pipelines where data can't leave
LangChainAgent frameworkRetrieval over a client's own documents
In the editor, every day
- Claude CodeAnthropicRefactors and migrations across a whole repo
CursorMulti-model IDEInline edits with the codebase in context
CopilotGitHub · VS CodeCompletion and test scaffolding
From idea to clickable
v0VercelUI exploration before committing to a direction
FigmaDesignThe prototype clients sign off on
StorybookComponentsEvery component reviewable in isolation
HTML5 Development questions, answered.
Straight answers, no fine print. If yours isn't here, ask us — we reply within one business day.
Still have questions?
Real humans, one business day.
- No-obligation, fixed quote — free
- Talk to the team who'll build it
- Reply within one business day
Speed and simplicity. A hand-coded static site loads faster than almost anything running a CMS, has no plugins to update or break, and can be hosted almost anywhere for very little. It's the right call for landing pages, microsites and anything that doesn't need daily content changes.
Often paired with html5 development.
Ready to talk html5 development?
Let's build it together.
Tell us where you are and where you want to be — we'll map the route and quote it, free.
