[?]What is an OPML (.opml) file?
OPML (Outline Processor Markup Language) is an XML-based file format originally developed by Dave Winer for outliner applications. Today, it is the universal standard for exporting and importing RSS / Atom feed reader subscriptions (Feedly, Inoreader, NetNewsWire), podcast directories (Pocket Casts, Overcast), and hierarchical task outlines (Workflowy, OmniOutliner, Dynalist).
[?]Why convert OPML files to Markdown?
Exporting OPML subscriptions and outlines into Markdown enables users to document reading lists in Obsidian, create structured RSS directories on GitHub, archive podcast libraries, and maintain hierarchical task outlines in human-readable plain text without vendor lock-in.
[?]How does convrtr handle RSS feeds and task outlines?
convrtr intelligently detects feed lists and organizes them into clean Markdown reference tables with website links and feed URLs. For general outlines, it preserves nested parent-child indentation, translates completion statuses into GFM checkboxes (- [ ] / - [x]), and formats notes as indented quotes.
[?]Are my subscription feeds and outline notes uploaded to any server?
Never. All XML parsing, attribute extraction, table generation, and Markdown formatting execute 100% locally in your browser memory. Your personal subscriptions and private outline notes never touch an external server.
[?]Why convert from OPML to MD?
OPML Document (OPML) and Markdown Document (MD) serve distinct roles across the digital workflow. Converting to MD provides optimized compatibility, modern compression efficiency, or standardized playback across web browsers, operating systems, and media production environments.
[?]Is the OPML to MD conversion lossless or lossy?
The output format (MD) is inherently lossless or supports lossless operation. Your original visual or audio fidelity is mathematically preserved without quantization artifacts.
[?]Does convrtr upload my files to any cloud server?
Never. convrtr is architected with a strict zero-upload model. All processing, decoding, decompression, and encoding happen 100% locally on your machine using sandboxed WebAssembly and Web Workers. Your data never touches an external server, database, or analytics collector.
[?]How can I convert OPML to MD from the terminal / command line?
You can execute this conversion locally via command-line utilities such as ffmpeg, cwebp, or ImageMagick. For example: see the developer terminal recipe provided in the technical specifications dossier above. convrtr provides the identical local-first capability directly inside your browser without installing CLI packages.
[?]Can I batch convert multiple OPML files to MD simultaneously?
Yes. You can drop multiple .opml files into the instrument to process them concurrently in browser Web Workers, or click 'Open in Master Studio' to queue mixed formats, configure individual targets, and export as a single ZIP archive.