Free Template & Data Renderer
Fill a Markdown or HTML template with a JSON data object and render to PNG or PDF. Mustache {{placeholders}}, loops, and nesting. No sign-up.
Use Cases
Server-Side Report Rendering
Render report sections & tables to PNG, then embed in a PDF
Data Templating API
Generate documents from one template plus data
Invoice Rendering
Generate invoice PDFs from a template per record
Markdown Rendering
Render Markdown to images and PDFs
HTML to Image API
Render HTML templates to images at scale
Frequently Asked Questions
Is this really free?
Yes — 3 free uses per day across all tools, no sign-up required. For higher volume, get a free API key with 100 calls/month.
What templating syntax can I use?
Logic-less Mustache — {{var}} (escaped), {{{var}}} (raw HTML), {{#items}}…{{/items}} loops, and {{a.b}}nested access. Values are HTML-escaped by default so data can't break the layout.
How do I automate this for many records?
Pass a data object to the Rendex API and render one document per record. See the data templating use case for code examples.
Can I just render plain Markdown?
Yes — if you don't need placeholders, the Markdown to Image tool renders Markdown directly.
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