Add your JSONFEED file
Drop one or more .jsonfeed files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
Converting a .jsonfeed font to .rss repackages the same glyphs and metrics for a different delivery target. Free, private, and validated — the file never leaves your browser.
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.Converting a .jsonfeed font to .rss repackages the same glyphs and metrics for a different delivery target. A .jsonfeed file is a JSON Feed: syndication expressed as a plain JSON object with a version, feed-level metadata and an items array, rather than as XML. It exists because most people building feed readers today would rather parse JSON than namespaced XML.
A .rss file is an RSS feed: an XML document listing a channel's recent items, each with a title, link, description and publication date, so that a reader can poll one URL instead of visiting a site. It is the format that made subscribing to a website a thing you could do. For this route the practical draw is the most widely supported syndication format by a wide margin and a frozen specification means decades-old files still work — balanced against rFC 822 dates are an ongoing source of quiet parsing failures, which is worth knowing before you commit a large batch.
The practical trigger for this conversion is usually a mismatch: with .jsonfeed, far less widely supported than RSS or Atom. Switching to .rss buys you the most widely supported syndication format by a wide margin, which is why it is the better fit for publishing a blog or news feed for subscribers. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
| Aspect | JSON Feed (.jsonfeed) | RSS feed (.rss) |
|---|---|---|
| Format type | Text-based — characters and structure, so there is no visual quality loss | Text-based — characters and structure, so there is no visual quality loss |
| How it stores data | the version field is a URL, which doubles as documentation and as an unambiguous version marker | a single <channel> holds metadata and a flat sequence of <item> elements — there is no nesting |
| Strongest at | feeds consumed by JavaScript clients that would otherwise need an XML parser | publishing a blog or news feed for subscribers |
| Weak spot | far less widely supported than RSS or Atom | rFC 822 dates are an ongoing source of quiet parsing failures |
| Metadata | feed and item fields — id, url, title, summary and publication date — are preserved. Attachments and typed HTML content are not represented in every target | channel and item fields — title, link, description, publication date and guid — are preserved. Namespaced extensions such as podcast tags are not carried across |
Drop one or more .jsonfeed files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
Select .rss in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if RSS is selectable, the route is real and validated.
Press Convert. The font tables are parsed and rewritten locally with fonteditor-core; glyph outlines, hinting, and kerning survive the trip.
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid RSS file. Outputs keep the original filename with the .rss extension.
There is no visual quality to lose — jsonfeed is text-oriented and rss is text-oriented, so the question is structural fidelity. Text, ordering, and basic structure are preserved; complex layout, embedded objects, and styling beyond the target's model are simplified.
Yes — the .jsonfeed file is processed inside your browser tab and never uploaded. The font tables are parsed and rewritten locally with fonteditor-core; glyph outlines, hinting, and kerning survive the trip. Close the tab and the file is gone from memory.
Read by every feed reader, every podcast client and most CMS platforms. Browsers dropped their built-in feed viewers years ago, so a feed opened directly usually shows raw XML. Novus Convert parses it locally and converts to Atom and JSON Feed.
It depends on the content: a single <channel> holds metadata and a flat sequence of <item> elements — there is no nesting. Convert one representative file first and compare before batch-processing a large set.
In .jsonfeed, feed and item fields — id, url, title, summary and publication date — are preserved. Attachments and typed HTML content are not represented in every target. Re-encoding through the browser pipeline does not carry embedded metadata into the output, which doubles as a privacy scrub — check the exported file if you specifically need tags preserved.
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .jsonfeed → .rss → .jsonfeed is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.