# Shareglint as an alternative to html2canvas

A JavaScript library that redraws the page's DOM onto a canvas inside the visitor's browser — no server, and no real screenshot.

## Before you read on

html2canvas costs nothing, needs no server and no API key, and it is the only option here that can capture what the visitor actually sees: a filled-in form, a logged-in dashboard, a chart they configured themselves. The image never leaves their browser unless you send it somewhere. For a "download as PNG" button on simple, mostly flat layouts, it is the right tool.

## The differences, plainly

| What | html2canvas | Shareglint |
|---|---|---|
| Price | Free, MIT licence | 100 renders a month free (watermarked), then $9 for 2,000 |
| How the image is made | Redraws the DOM with its own CSS implementation; its docs warn it "may not be 100% accurate" | Chrome renders the page or template and takes a real screenshot |
| Where it runs | In the visitor's browser | On our servers, called with one HTTP request from any language |
| CSS support | A published list; box-shadow, filter, object-fit, mix-blend-mode, writing-mode and repeating gradients are unsupported | Everything Chrome renders |
| Images from other domains | Need CORS or a proxy, otherwise the canvas is tainted | A real browser loads them like any page does |
| The user's own screen | Yes — filled-in forms, logged-in views, whatever is on the page | No — public URLs and the data you send only |
| Sharing and og:image | The image exists in the browser until you upload it somewhere | A stable file URL you can put straight into og:image |
| Maintenance | Latest release 1.4.1, January 2022 | A service we keep running |

html2canvas pricing (free (MIT licence), runs in your visitor's browser; latest release 1.4.1, January 2022) comes from their own public page, checked 2026-11. If something has changed — tell us and we will fix it.

## Which one to pick

- **Take html2canvas:** You want a client-side "save as image" button for the user's current view, the layout sticks to CSS on its supported list, and no copy of the image is needed on a server.
- **Take Shareglint:** The image must look exactly as Chrome renders it, must be made without a visitor's browser (OG images, emails, bulk jobs), or must be shared through a URL.