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Mainline is a design and development studio. We build custom sites with clear hierarchy, intentional motion, and performance that holds up when real traffic shows up.
Some of the companies we've worked with
Design, build, polish, and stay in sync. Nothing gets lost in the handoff.
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Animations
Morning, can we bump the hero motion slightly? Feels a touch fast on mobile.
Absolutely. I eased the spring and added 40ms delay on enter so it lands softer on small screens. Pushing a preview in a sec.
vercel.com
Preview · hero-spring-v3
Perfect, this is exactly the cadence we wanted. Ship it.
Excellent communication and craft. Open to ideas, calm under scope changes, and we'd hire them again.
Marcus Chen
CTO at Harbor Labs
Quick to respond, very professional, and shipped a site within a week. Looking forward to the next collaboration.
Kenji Sato
Founder / CTO at Parallax AI
I'dhighlyrecommendMainlineforasiteredesign.Theyturnedourroughshellintoapolishedproductwithimpeccabletaste,realpartnership,andtheadaptabilityyouneedinastartup.Wescopedafewpages;theydeliveredsowellweexpandedtheengagement.
The best front-end partner we've had. They took the brief and shipped a product our team is proud of.
Elena Vargas
Founder at Northline
Talented, communicative, and fast across the board. Highly recommend.
Sofia Almeida
Founder at Atelier Peak
From a loose brief to a polished site in days. Strong taste, strong intuition, zero fluff.
Development was flawless and they acted like partners, not vendors. Very happy we hired them.
From rough concept to polished product: patient with feedback, great collaboration, delivery that matched our vision.
Excellent work on our website—they went above and beyond, with a smooth handoff so we could move forward confidently.
Custom sites with clear hierarchy, intentional motion, and performance that holds up when real traffic shows up.
From idea to wireframes to design, everything is handled at a speed nobody can match.
Mon 17 Aug
4:53 PM
Ava
Pushed to prod
Vercel
Deployed!!
We specialize in creating microinteractions and 3D animations to make your website more engaging and interactive.
Ask me anything...
The best voice stacks tune latency and barge‑in, not just raw ASR scores [1][2]. Mainline is copy‑paste React and Tailwind with motion, so your agent UI ships as fast as the model [3].
References [1] https://openai.com/api/ · [2] https://deepgram.com · [3] https://mainline.studio
We make sure you get found on Google and AI platforms like ChatGPT and Perplexity.
We help you with your existing landing page on design strategy and optimizations.
We take care of deployments, hosting, maintenance, revisions, design systems, and everything else in between.
Trusted by 100+ companies worldwide
We design and build with love, care and attention to detail.
We make sure your website is responsive and looks great on all devices.
We make sure your website is accessible and looks great in both modes.
We use the latest and greatest technologies to build your website.
We keep you updated on the progress of your website and communicate with you regularly.
We make sure your website is future-proof and can be easily updated and improved.
A high-converting landing page, designed and built end-to-end.
Starts at$2,500 one-time payment
A complete multi-page site that makes you look like a category leader.
Starts at$4,500 one-time payment
Everything in One Pager, plus
Fixed scope, fixed price. No hourly billing, no surprises. We only take on a handful of builds each month.
or email us at
If you have specific requirements, whether it's a unique landing page, a web app, or something completely custom, let's talk and get it done together. Or write us an email at hello@mainline.studio.
We use a variety of stacks for coding. There are right tools for the right job. Most of the time, we use Next.js, Tailwind CSS, React, TypeScript, Node.js, PostgreSQL to name a few.
From the day we start working on your project, we will add you to a Slack channel. You can reach us on that channel for support.
We’re passionate about delivering results and building long-term client relationships. Our experience across a wide range of technologies allows us to recommend the best approach for your needs, ensuring quality and reliability from start to finish.
Communication is key for us. We provide regular updates and demos, and remain accessible for any questions via Slack or email. Our transparent workflow ensures you’re always in the loop.
We offer post-delivery support and can accommodate updates or changes as your needs evolve. Our goal is to ensure your solution remains robust, up-to-date, and aligned with your business objectives.
Every client is unique, so we tailor our services to your requirements. Whether you need a custom-built application or help with an existing project, we’re flexible and ready to design a solution just for you.
