
Ruffle
Flash Player 2021
SuperNova Player
Newgrounds Player
CheerpX for Flash
OpenSilver
Gnash
The Lightspark project

Urlbox
ApiFlash
ScreenshotOne
Bannerbear
ScreenshotAPI.net
CloudBrowser.co
HTMLCSStoImg.com
Capture website screenshots, render HTML/CSS, or create templated graphics. Render images or PDFs. Use MCP with AI, no-code automation, or the REST API. No browsers needed.

Which is more popular?
Based on our record, Lightspark should be more popular than HTMLCSS to Image API. It has been mentioned 9 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | lightspark.github.io | htmlcsstoimage.com |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from United States · 1 - 9 employees · 2018 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Lightspark yet.
Your HTML and CSS. Ready-to-use images and PDFs. HTML/CSS to Image (HCTI) gives developers a simple API for turning HTML, CSS, and URLs into images and PDFs. Send your markup, capture a webpage, or fill a reusable template with data. HCTI handles the browser infrastructure. Create Open Graph...
What each product offers, as listed by its team.


Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Lightspark and HTMLCSS to Image API.
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.
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.
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.
Share your experience with using Lightspark and HTMLCSS to Image API. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Not the first attempted Flash reimplementation[1,2,3]. The GNU one didn’t work all that well back in the day as far as I remember, but then Flash was a moving target at the time. [1]: https://www.gnu.org/software/gnash/ [2]:... - Source: Hacker News / over 3 years ago
A true emulator would be something like Ruffle or Lightspark. Ruffle I know doesn't work well with Walfas last time I checked. I don't know about Lightspark. Source: about 4 years ago
Lightspark, a browser plugin written in C++. It's a work in progress, not every flash content will work. Modern mainstream browsers don't support running it within a page, so flash content needs to be run in a standalone lightspark app,... Source: over 4 years ago
Bannerbear is solid. You design a template, call their API, get an image back. They're doing around $40-50K MRR, plans start at $49/mo, and they've earned it. Placid and HTMLCSStoImage do similar things in slightly different ways. - Source: dev.to / 8 months ago
When comparing Lightspark and HTMLCSS to Image API, you can also consider the following products.


Screenshot full page websites in retina resolution with Urlbox.io screenshot as a service API. Urlbox is the best provider of automated website screenshots offering many unique options and features.
Compare Urlbox to Lightspark or HTMLCSS to Image API:

Want to fix "This plugin is not supported" and "Adobe Flash Player is blocked" error messages? This extension will remove those messages and allow you to play Flash in any website with a single click.
Compare Flash Player 2021 to Lightspark or HTMLCSS to Image API:

ApiFlash is a powerful serverless screenshot API built with Chromium and AWS Lambda. It can easily scale to millions of screenshots per day and has an ever growing number of satisfied big clients.
Compare ApiFlash to Lightspark or HTMLCSS to Image API:
SuperNova Player allows systems to play .SWF files in a standalone player launched from any browser.
Compare SuperNova Player to Lightspark or HTMLCSS to Image API:

Fast and reliable screenshot API built to handle millions of screenshots a month.
Compare ScreenshotOne to Lightspark or HTMLCSS to Image API: