Convert anything, at global scale.
200+ formats and automation APIs that feels instant.
CONVERT
From
To
Drop files or choose a source
Upload multiple files at once, mix formats, and fine-tune every conversion with format-aware settings.
Max 2GB per file · Drag & drop ready · Mixed file types welcome
XUL at a glance
XUL
XUL emerged in the early Mozilla era and powered Firefox's interface and add-on ecosystem for years before Firefox Quantum and the WebExtensions shift made most mainstream XUL workflows legacy.
PEF at a glance
PEF
Pentax raw workflows never dominated the mass market, but their persistence in enthusiast and specialist photo libraries gives PEF ongoing practical relevance.
Format comparison
| Feature | XUL | PEF |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | depends | raw |
| File size characteristics | medium | large |
| Compatibility | broad | limited |
| Editability | moderate | high |
| Created year | 1999 | 2006 |
| Inventor | Mozilla (David Hyatt, others) | Pentax (now Ricoh) |
| Status | legacy | proprietary |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | strong | strong |
| Metadata handling | moderate | rich |
| Delivery profile | strong | limited |
| Workflow fit | exchange | source |
| Vector scaling | Not supported | Not supported |
When to use each format
When to use XUL
- authoring
- review and collaboration
- distribution
- Enabled declarative cross-platform UI construction inside the Mozilla ecosystem.
When to use PEF
- capture ingest
- editing
- web or print delivery
- Preserve capture-stage sensor information.
FAQs
Why convert XUL to PEF?
Choose PEF as target when preserving Pentax camera originals or maintaining a Pentax-oriented raw workflow.
What changes when converting XUL to PEF?
Convert to PEF when preserving Pentax camera originals or maintaining a Pentax-oriented raw workflow. It is useful for archive masters and editable photographic captures.
What should I review after converting XUL to PEF?
After conversion, review these destination checks: Open converted output in vendor photo software and verify behavior on real samples; Compare output against the expected raw quality profile; Compatibility often depends on vendor or decoder support.
How can I keep quality stable in XUL to PEF conversion?
Run representative samples, keep settings deterministic, and monitor these risks: They are source formats, not publication-ready outputs; Compatibility often depends on vendor or decoder support; Validate destination compatibility before large-batch conversion.