HTML to JSON Converter
Processing entirely on your device — large files may take a moment.
HTML Document and JSON Data exist for different jobs: HTML is the language of web pages. An HTML file is a self-contained text document describing structure and formatting that any browser can open directly. Convert tables to JSON when a website, app or API expects structured records with named fields.
Because the whole conversion happens on your device, it is instant, unlimited and genuinely private — no accounts, no watermarks, no files on anyone's server. Multiple files are converted in one go.
How to convert HTML to JSON
- 1
Select your files
Drag & drop your HTML files onto the area above, or click to browse. You can add multiple files at once for batch conversion.
- 2
Convert instantly
Click "Convert to JSON". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted JSON file individually, or grab everything at once as a ZIP archive.
Frequently asked questions
Is this HTML to JSON converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Is there a file size limit for HTML to JSON?
The only limit is your device's memory, since nothing is uploaded. Files up to a few hundred megabytes work fine on a modern desktop browser; very large files simply take a little longer.