Rendering Engine
wkhtmltopdf: Qt WebKit, unchanged since 2012 per their status pagecloudlayer.io: Chromium
Render a representative template in both products and inspect CSS, JavaScript, fonts, assets, and page breaks.
Plan a move from archived Qt WebKit to a hosted Chromium renderer by testing templates, security boundaries, request options, output, and operations.
Free account, no credit card
11 of 12 rows differ. One more matches on both sides.
| Feature | wkhtmltopdf | cloudlayer.io |
|---|---|---|
| Maintenance | Repository archived Jan 2023, read-only | Maintained hosted service |
| Rendering Engine | Qt WebKit, unchanged since 2012 per their status page | Chromium |
| Where it runs | Your servers | Hosted API |
| Untrusted HTML | Their status page advises against it | Isolated session per job |
| Image Generation | wkhtmltoimage | ✓ |
| Template System | Caller supplies HTML | Nunjucks |
| Visual Template Editor | Not applicable to CLI | ✓ |
| Forms and Signatures | Not applicable to converter | ✓ |
| Webhook Notifications | Caller operates workflow | ✓ |
| Multiple SDKs | Command line and wrappers | 8 languages |
| What it costs | Free to license, you run the servers | From $9/mo for 1,000 renders |
| PDF Generation | ✓ | ✓ |
Every value below is what each product publishes, checked in August 2026. Where the two agree, the row is left out.
wkhtmltopdf: Qt WebKit, unchanged since 2012 per their status pagecloudlayer.io: Chromium
Render a representative template in both products and inspect CSS, JavaScript, fonts, assets, and page breaks.
wkhtmltopdf: wkhtmltoimagecloudlayer.io: yes
Verify whether the same source can produce the image sizes and formats required by the workflow.
wkhtmltopdf: Caller supplies HTMLcloudlayer.io: Nunjucks
Check where data merges with markup and who owns loops, conditions, filters, and missing-data behavior.
wkhtmltopdf: Not applicable to CLIcloudlayer.io: yes
Compare who can edit a template, which source the editor stores, and how visual and code changes round-trip.
wkhtmltopdf: Caller operates workflowcloudlayer.io: yes
Compare signing, event content, attempt behavior, failure handling, and the job-status fallback.
wkhtmltopdf: Command line and wrapperscloudlayer.io: 8 languages
Inspect the package, supported methods, release process, and error types for the language your application uses.
The wkhtmltopdf status page suggests WeasyPrint or Prince for controlled HTML reports and Puppeteer or a wrapper when JavaScript is required. Those options use different engines and operating models. A hosted API keeps HTML/CSS input but still requires a compatibility test and a mapping from command-line flags to request options.
Read from their own page in August 2026.
wkhtmltopdf is free to license, while the user operates its servers, processes, queues, retries, and binary. Its maintainer states there is no deadline or certainty for remaining work. Compare that operating cost and risk with a hosted plan whose allowance covers rendered output and managed execution.
Read from their pricing page in August 2026. Ours is on the pricing page.
Checked against wkhtmltopdf’s published documentation in August 2026. See their pricing
Its status page says Qt 4 has been unsupported since 2015 and WebKit has not changed since 2012. Test Grid, Flexbox, fonts, JavaScript, and pagination in both engines.
The status page says: "Do not use wkhtmltopdf with any untrusted HTML." If your documents are built from anything a customer supplied, that sentence is about your deployment.
The repository has been archived and read-only since January 2023. Its status page gives no deadline or certainty for the remaining work.
Create a free account and select a safe template that exercises the fonts, assets, data, and page behavior used in production.
Move supported template source or rebuild it in the visual editor. Map wkhtmltopdf request fields, responses, errors, storage, and callbacks to their cloudlayer.io equivalents.
Render both paths with the same safe inputs. Check layout and file properties, then test failed requests and delivery before routing production work.
Retain the source format while mapping CLI flags to API options. Compare each template because a different browser engine can change the result.
The hosted service operates browser processes, queues, and retries. Your application submits work and receives or routes the completed file.
Add visual authoring, form input, signatures, storage delivery, or webhooks around rendering when the use case requires them.
Evaluate cloudlayer.io when you need a visual template editor or browser-based rendering. It also covers forms, capture, signing, and delivery workflows. Compare those needs with wkhtmltopdf's cited product scope and test a representative job before deciding.
Yes. Create a free account, rebuild one of your wkhtmltopdf documents, and compare the output side by side before you migrate anything. No credit card is needed.
11 of the 12 rows compared differ, checked against their published documentation in August 2026. The rest match, and the table marks them so you can collapse to the differences.
wkhtmltopdf lists Qt WebKit, unchanged since 2012 per their status page where cloudlayer.io lists Chromium. Test the CSS, JavaScript, fonts, assets, page breaks, and runtime settings used by your own template.
wkhtmltopdf does not have a sourced price in this record. cloudlayer.io starts at $9 a month for 1,000 renders; compare its included usage and limits with a current quote from wkhtmltopdf.
Move one workflow first. Record its inputs and outputs. Rebuild the template, then test its assets, files, delivery, and failure cases.
Use a free account to test a representative template, request, output, and delivery path before planning a migration.
No credit card required.
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