HyperRender v1.0.0

HyperRender v1.0.0 — Initial Public Release

A custom RenderObject-based engine that renders HTML, Markdown, and Quill Delta natively on Flutter Canvas — without WebViews, without widget trees.

What's included

• CSS Float layout — text wrapping around floated images, architecturally impossible in widget-tree renderers
• CJK typography — Ruby/Furigana with proper centering, Kinsoku line-breaking across the full line
• Continuous text selection — select across headings, paragraphs, and table cells without widget-boundary breaks
• CSS Variables + calc() — full custom property cascade
• Flexbox and CSS Grid layout
• Smart table layout — two-pass W3C column-width algorithm, colspan/rowspan, three overflow strategies
• <details>/<summary> — collapsible sections, no JavaScript required
• Multi-format input — HTML, Markdown, Quill Delta
• Built-in XSS sanitization — javascript:, vbscript:, SVG data URIs, expression() blocked by default
• Virtualized rendering — ListView.builder mode for large documents
• Screenshot export — GlobalKey.toPngBytes()
• WebView fallback via HtmlHeuristics.isComplex()

Packages published

Package	pub.dev
hyper_render	https://pub.dev/packages/hyper_render
hyper_render_core	https://pub.dev/packages/hyper_render_core
hyper_render_html	https://pub.dev/packages/hyper_render_html
hyper_render_markdown	https://pub.dev/packages/hyper_render_markdown
hyper_render_highlight	https://pub.dev/packages/hyper_render_highlight
hyper_render_clipboard	https://pub.dev/packages/hyper_render_clipboard

Benchmarks (macOS Desktop, Apple Silicon, Flutter release mode)

Document	Parse time
1 KB	27 ms
10 KB	69 ms
50 KB	276 ms

Mobile performance has not been independently verified — run benchmarks on your own hardware.