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html2canvas - Screenshots with JavaScript Review

Depends

Should I use html2canvas - Screenshots with JavaScript?

Not disclosed - html2canvas.hertzen.com

· 1 month ago

Use it if you are a developer embedding free, client-side DOM-to-image capture in a web app and can tolerate rendering quirks. Skip it if you are a non-technical buyer wanting a screenshot product, support SLAs, or guaranteed fidelity — usable evidence is thin.

Confidence

Low. Based on ~20 public sources; most are directory name-drops, so substantive user evidence is thin and confidence is low.

Ratings

  • Value for money
  • Ease of use
  • Feature depthNo substantive feature evidence found
  • Support quality
  • Security posture

Pricing

$0

Open-source library

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes

Best for

  • Developers adding client-side page capture
  • Exporting web UI to images in apps
  • Projects avoiding backend screenshot services

Not for

  • Non-developers who just want a screenshot app
  • Buyers needing vendor support or SLAs
  • Teams needing pixel-perfect capture of complex CSS
  • Anyone wanting full-browser or scrolling captures

Gotchas - check before you buy

high

External/cross-origin images need a proxy setup or captures silently break

medium

It is a library, not a service — your team owns maintenance and bug fixes

medium

Community-only support; no security page, no vendor to call

medium

Complex layouts and scrolled content may capture imperfectly; budget workaround time

Pros and cons

Pros

  • Free and open source; no license costs
  • Renders web page content to a canvas image client-side
  • Embedded by other vendors; Syncfusion docs it for Blazor export
  • Widely referenced across curated JavaScript resource lists

Cons

  • At least one user could not get it working
  • Incomplete captures reported when scrollbars present
  • Not a standalone app; developers must build the integration
  • No vendor behind it; no support SLAs

Sources & method

- 7 sources - No known vulnerabilities found in the sources reviewed.

official x2review x4security x1

Key stats

  • Value for money: 5/5

    Rating

  • $0

    Starting price

  • 7

    Sources

  • Analyzed

  • Value for money: 5/5. Free and open source, no fees
  • Ease of use: 3/5. Embeds in JS apps, but some users fail
  • Feature depth. No substantive feature evidence found
  • Support quality: 2/5. No vendor; community-only help
  • Security posture: 3/5. No security page; no CVEs in sources
  • $0 Price Open-source JavaScript library
  • Yes Free tier Entire library is free
  • Developer library Type Not a SaaS product; no vendor

Pricing

Open-source library

$0

  • Client-side DOM-to-canvas rendering
  • No vendor support included

Security

No known vulnerabilities found in the sources reviewed.

What users say

Substantive user feedback is sparse; a forum user reported failure getting screenshots working, while developers broadly reference the library.

“Yeah, I could not get it”
PsychoPy Discourse forum
Full analysis

Based on ~20 public sources; most are directory name-drops, so substantive user evidence is thin and confidence is low.

Free open-source JS library for in-browser page captures — good for devs, wrong for anyone wanting a point-and-click tool.

Methodology

Based on ~20 public sources; most are directory name-drops, so substantive user evidence is thin and confidence is low.

Read how a report is made.

Sources

  1. niklasvh/html2canvas: Screenshots with JavaScript (official repo)github.com
    official
  2. Screenshots in Online Experiments — PsychoPy forumdiscourse.psychopy.org
    review
  3. Export html shapes into image and pdf in Blazor — Syncfusion KBsupport.syncfusion.com
    official
  4. html2canvas – Screenshots with JavaScript — jQuery Pluginsjquery-plugins.net
    review
  5. dom-to-image vs html-to-image — LibHuntlibhunt.com
    review
  6. Fixing incomplete screenshots with scrollbars (Chinese dev blog)blog.csdn.net
    review
  7. Security page — html2canvas.hertzen.com (no page found)html2canvas.hertzen.com
    security

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