MacDuty VS HTMLCSS to Image API

MacDuty's answer

The product is the hardware: Apple silicon Mac mini computers running macOS, racked and networked, with public IPv4 and IPv6. Around them sits a client area built with Next.js, from which customers restart a machine, reset its password, manage SSH keys and reinstall macOS, plus a public catalogue API that publishes the configurations and their prices.

HTMLCSS to Image API's answer:

HCTI is built with C# and .NET, using ASP.NET Core for the API and Chromium with PuppeteerSharp for browser rendering.

The rendering infrastructure combines stateful and serverless compute for speed and scalability. Cloudflare Workers sit in front of every API request, and Cloudflare provides our CDN.

The visual template editor is built with Blazor WebAssembly.

For developers integrating with HCTI, the interface is a REST API with JSON requests. Call it from any language that supports HTTP, or use one of our handwritten client libraries, built for performance. Most have zero dependencies.

MacDuty's answer

Every machine is bare metal and belongs to one customer. There is no virtualisation layer and no shared hardware, so what you rent is a whole Mac mini, with your own Apple account on it. The fleet covers every Apple silicon generation from the M1 to the 2026 M6 and M5 Pro, and billing goes by the day, the month or the year with no setup fee. Prices exclude VAT.

HTMLCSS to Image API's answer:

You design with HTML and CSS. HCTI takes care of rendering it.

Use the layout techniques, fonts, and styles you already know to generate images programmatically. A social card can use the same styling as your website. A report can pull in live application data.

Send raw HTML and CSS, capture a URL, or create a reusable template and pass in new values. The visual template editor also lets teammates work on designs without editing your application code. Images, PDFs, screenshots, and template-based graphics all run through the same API.

We've spent years working on the infrastructure side, too. Before starting HCTI, we worked on scaling very large online services at large companies. That experience shaped how we built HCTI: speed and scalability have been priorities from the start, alongside the day-to-day experience of developers using it.

We put that same attention into clear documentation, practical code examples, and an API that's straightforward to integrate. Getting your first image should be easy. Growing that integration into a production workload should be, too.

MacDuty's answer

iOS and macOS developers, small development teams, CI and DevOps engineers, agencies building Apple platform software, and teams running AI agents on Apple silicon. A large share are people working on Windows or Linux who still have to build and ship to the App Store.

HTMLCSS to Image API's answer:

HCTI is built for developers who need to generate images and PDFs as part of their product. Think social previews for every page, personalized graphics for every customer, or reports generated directly from application data.

It's a natural fit for teams that already work with HTML and CSS. You can bring your existing designs and make image generation part of your codebase without maintaining browser infrastructure.

Marketing and operations teams use HCTI, too. Reusable templates and integrations with Zapier, Make, and n8n let them generate graphics from new content, spreadsheet rows, or workflow events without asking a developer for every variation.

From a solo developer shipping a feature to a team generating images at scale, the common need is the same: turn content and data into finished visuals automatically.

MacDuty's answer

Three reasons. The hardware is current: the M6 and the M5 Pro are in the catalogue, not only older generations. The machine is yours alone, not a virtual machine carved out of a bigger host, and you keep full administrative access, your own Apple account and your own backups. And the rack is in Romania, inside the EU, operated by a company registered here, so the data stays under EU jurisdiction and a DPA is available on request.

MacDuty's answer

MacDuty is run by AITEST S.R.L. in Romania, by the engineers who rack the machines and answer the tickets. The idea is narrow on purpose: Mac minis in a rack in the EU, one customer per machine, no attempt to be a general cloud.