Looking for an Aspose.HTML alternative? Here's an honest comparison, with a test we ran ourselves. Aspose.HTML is a library (for .NET, Java and Python) with its own HTML rendering engine that converts HTML to PDF, images, DOCX and more on your servers, sold as perpetual licenses per developer and deployment location. Shotmint is an HTTP API built on Chromium: you send a URL or raw HTML from C# (or any language) and get a PDF or screenshot back, paid per render with prepaid credits.
| Model | Price | Free tier | Unused volume | |
|---|---|---|---|---|
| Aspose.HTML for .NET | Perpetual license per developer and deployment location; 1 year of updates included | Developer Small Business $999 (1 developer, 1 location) · Developer OEM $2,997 (unlimited locations) · Site Small Business $4,995 (10 developers, 10 locations) · Site OEM $13,986 · Metered from $1,999/mo. Paid support from $399/yr. Java and Python editions are priced separately; Aspose.PDF for .NET starts at $1,199 | Evaluation mode: watermark on every page, 4 pages per document; 30-day temporary license on request | No per-document limit on licensed deployments |
| Shotmint | Prepaid credits, no subscription | €5 / 2,000 · €19 / 10,000 · €59 / 50,000 (one-time) | 25 free renders a month, no signup | Never expire |
Aspose.HTML prices are in USD and come from their public pricing page on 22 October 2026. Prices change, so check their current pricing. Shotmint prices are in EUR.
Aspose.HTML runs in your own process with no browser to install, so documents never leave your servers and a licensed deployment has no per-document cost, which matters for air-gapped setups and very high volumes. It is also much more than a PDF printer: it converts HTML, MHTML, EPUB, SVG and Markdown to PDF, XPS, DOCX and images, edits the DOM, and comes in .NET, Java and Python editions with the same API. In our test it ran a small inline script correctly. If you need offline conversion, DOCX output or document manipulation inside a .NET or Java app, Aspose is the better fit.
You want PDFs that look exactly like the page does in Chrome, and you don't want a per-developer license. We ran Aspose.HTML for .NET 26.9.0 (evaluation mode) and our API on the same inputs on Ubuntu, 22 October 2026. Aspose first crashed with a missing libgdiplus, a deprecated Mono library that you have to add to your Linux image yourself. Once installed, a test invoice with font-family: sans-serif came out in IPAGothic, a Japanese font, although the system default was DejaVu Sans; a bar sized with CSS clamp(100px, 50%, 300px) stretched to the full page width; and the Wikipedia article on PDF came out without its site styles (bare navigation lists and "move to sidebar" buttons on page 1). It took 12.8 s, against 2.6 s through our API, where Chromium printed the same page styled, in Liberation Sans, with the bar at 300 px. With Shotmint, 1,000 PDFs a month for a year cost €24 (one €19 pack and one €5 pack), and 10,000 a month cost €156; the cheapest Aspose.HTML license is $999 for one developer and one location. Credits never expire, failed renders are free, and one key works from every project and machine. POST /v1/pdf takes a URL or raw HTML with page formats, margins, header and footer templates, page numbers and your own @page CSS; see the C# HTML to PDF guide for a tested HttpClient example. A free key with 25 renders a month takes one request, with no signup. We don't output DOCX or XPS and we can't run offline, so for those pick Aspose.
GET /v1/screenshot: PNG, JPEG or WebP screenshots of any URL, with full-page capture, custom viewport, retina scale, a single-element selector, dark mode, transparent backgrounds (omit_background), ad and cookie-banner blocking (block_ads), and hide_selectors.POST /v1/pdf: PDFs from a URL or raw HTML, with format, landscape, margins, backgrounds, header and footer templates, and page numbers.GET /v1/content: the main content of any page or PDF link as Markdown, plain text or clean HTML, with title, author and date, for LLMs and RAG.GET /v1/og: 1200×630 Open Graph cards from a title and subtitle, with signed public URLs you can put straight in an og:image tag.X-Credits-Remaining header.Shotmint is a new, small service. It has small Node and Python SDKs and integration guides, but no enterprise plans, SLA or team accounts yet (measured uptime and render times are public on /status). If you need those, Aspose.HTML may suit you better. If you want an API key in 10 seconds and to pay only for what you use, try it.
ScreenshotOne, Urlbox, PDFShift, ApiFlash, PagePixels, ScreenshotAPI.net, HTML/CSS to Image, Microlink, Screenshot Machine, Screenshotlayer, Bannerbear, Placid, Browshot, Restpack, ScrapingBee, DocRaptor, pdflayer, html2pdf.app, Browserless, PDFMonkey, Doppio, CaptureKit, Pdfcrowd, APITemplate.io, url2png, Firecrawl, CraftMyPDF, IronPDF, SelectPdf, Prince, EvoPdf, PDF.co, CloudConvert, pdfEndpoint, Abstract Screenshot API, GrabzIt. Yearly cost at three volumes: screenshot API pricing and HTML to PDF API pricing.
No signup, no card; the free key refills on the 1st of every month. If you need more, buy credits once: €5 for 2,000, €19 for 10,000, €59 for 50,000. They never expire, and they stack on top of the 25 free renders a month, which every key keeps. From a script, an AI agent, Make or Zapier, POST /v1/keys/free (no body) returns a key as JSON (openapi.json, no-code recipes).