Technologies commonly supported natively by most web browsers that are suitable for static web pages, and long-term digital preservation. The focus is on mechanisms that browsers can render directly without runtime processing or scripting. It intentionally excludes technologies such as JavaScript applications, XSLT transformations, WebAssembly, plugins, and similar runtime mechanisms.
| Category | Technology / Format | Purpose |
|---|---|---|
| Document structure | HTML | Primary web document format, supports structure, links, media, and styling |
| Text | Plain text (TXT) | Minimal format, universally supported, best for raw content or code archives |
| Data exchange | JSON | Structured data serialization, machine-readable, increasingly supported in web APIs |
| Presentation / Printable | Page-accurate document format for printing, archiving, and offline reading | |
| Presentation | CSS | Styling and layout of HTML content |
| Vector graphics | SVG | Resolution-independent vector images |
| Raster images | PNG, JPEG, GIF, WebP, AVIF | Embedded bitmap images |
| Audio | MP3, AAC, Ogg | Browser-native audio playback |
| Video | MP4, WebM | Browser-native video playback |
| Image Formats | ||
|---|---|---|
| Format | Status | Notes |
| PNG | Recommended | Lossless format widely supported |
| JPEG | Recommended | Common photographic format |
| GIF | Supported | Legacy format |
| WebP | Modern | Efficient compression |
| AVIF | Modern | High compression efficiency |