Convert OPML to JSON
Convert OPML outline files to JSON format instantly in your browser. No upload required, completely private. Free online OPML to JSON converter.
By ChangeThisFile Team · Last updated: March 2026
ChangeThisFile converts OPML outline files to JSON instantly in your browser with no file upload. Drop your OPML file, get structured JSON back in seconds. Free, private, and works offline.
Convert OPML to JSON
Drop your OPML file here to convert it instantly
Drag & drop your .opml file here, or click to browse
Convert to JSON instantly
OPML vs JSON: Format Comparison
Key differences between the two formats
| Feature | OPML | JSON |
|---|---|---|
| Structure | XML-based outline format | Hierarchical data notation |
| Readability | Human-readable XML | Human-readable text |
| Nesting | Unlimited nested outlines | Unlimited nested objects |
| Metadata | Rich attributes per outline | Key-value pairs |
| RSS support | Native feed outline format | Requires custom schema |
| Tool support | RSS readers, outline apps | Universal programming support |
| File size | Verbose XML tags | Compact notation |
| Use case | RSS subscriptions, outlines | APIs, data exchange |
When to Convert
Common scenarios where this conversion is useful
RSS feed migration
Convert OPML subscription lists from RSS readers like Feedly or Inoreader to JSON for importing into custom feed aggregators or web apps.
Blog roll analysis
Transform exported OPML blog lists into JSON for data analysis, categorization, or building recommendation systems based on feed hierarchies.
Content management systems
Convert OPML outlines to JSON for CMS import, allowing structured content organization and navigation menu generation from outline data.
API development
Transform OPML outline structures into JSON format for REST API consumption, enabling programmatic access to hierarchical outline data.
Data backup and archival
Convert OPML exports to JSON for long-term storage and future-proof archival, ensuring compatibility with modern data processing tools.
Who Uses This Conversion
Tailored guidance for different workflows
For Developers
- Convert OPML feed lists to JSON for REST API consumption in web applications
- Transform RSS reader exports into JSON for custom feed aggregator development
- Generate JSON datasets from OPML outlines for machine learning or analytics projects
For Content Managers
- Convert blog roll OPML exports to JSON for CMS import and website navigation
- Transform content outline structures from OPML to JSON for headless CMS systems
- Export RSS subscription lists as JSON for content curation workflow automation
For Data Analysts
- Convert OPML feed databases to JSON for data analysis and visualization tools
- Transform RSS subscription exports into structured JSON for feed popularity analysis
- Extract hierarchical data from OPML files for network analysis and categorization studies
How to Convert OPML to JSON
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1
Drop your file
Drag and drop your OPML file onto the converter, or click to browse.
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2
Convert instantly
The conversion happens automatically in your browser. No upload needed.
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3
Download the result
Click Download to save your converted JSON file.
Frequently Asked Questions
Yes, completely free with no limits. ChangeThisFile runs entirely in your browser with no file uploads or subscriptions required.
No. All conversion happens locally in your browser. Your OPML files never leave your device, ensuring complete privacy.
OPML (Outline Processor Markup Language) is primarily used for RSS feed subscription lists, blog rolls, and hierarchical outlines in feed readers and blogging platforms.
Yes, the converter maintains the full hierarchical structure of your OPML outlines, converting nested elements into properly structured JSON objects and arrays.
Yes, there's no file size limit for client-side conversion. Large OPML files with extensive feed lists convert just as quickly as small ones.
Yes, all OPML attributes (title, xmlUrl, htmlUrl, type, etc.) are converted to JSON key-value pairs, maintaining the original metadata.
Most RSS readers including Feedly, Inoreader, NewsBlur, The Old Reader, and FreshRSS support OPML export for backing up subscription lists.
Yes, the JSON output follows standard formatting and can be directly consumed by REST APIs, JavaScript applications, or any system that accepts JSON data.
Yes, OPML categories and folder structures are preserved as nested JSON objects, maintaining your original organizational hierarchy.
No file size limit. Since conversion happens in your browser, even very large OPML files with thousands of feeds can be converted instantly.
Yes, the converter supports standard OPML format used by all major RSS readers, regardless of which application created the original file.
Yes, the converter preserves the exact order of feeds and categories as they appear in your original OPML outline structure.
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Need to convert programmatically?
Use the ChangeThisFile API to convert OPML to JSON in your app. No rate limits, up to 500MB files, simple REST endpoint.
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