Add your RSS file
Drop one or more .rss 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.
RSS to ATOM
Converting a .rss font to .atom repackages the same glyphs and metrics for a different delivery target. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop RSS files here
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.About converting RSS feed to Atom feed
Converting a .rss font to .atom repackages the same glyphs and metrics for a different delivery target. 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.
An .atom file is an Atom feed: the IETF-standardised syndication format, structured as a feed element containing entries, each with a globally unique id, a title, a timestamp and either content or a link to it. It was designed to fix the ambiguities RSS had frozen in place. For this route the practical draw is a real IETF standard with the ambiguities resolved rather than frozen in and unambiguous dates and explicit content typing — balanced against less widely supported than RSS despite being the better specification, which is worth knowing before you commit a large batch.
Why convert RSS to ATOM?
The practical trigger for this conversion is usually a mismatch: with .rss, rFC 822 dates are an ongoing source of quiet parsing failures. Switching to .atom buys you a real IETF standard with the ambiguities resolved rather than frozen in, which is why it is the better fit for publishing a feed where content type and identity must be unambiguous. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
RSS vs ATOM at a glance
| Aspect | RSS feed (.rss) | Atom feed (.atom) |
|---|---|---|
| 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 | a single <channel> holds metadata and a flat sequence of <item> elements — there is no nesting | every entry requires a globally unique id, which removes RSS's ambiguity about what identifies an item |
| Strongest at | publishing a blog or news feed for subscribers | publishing a feed where content type and identity must be unambiguous |
| Weak spot | rFC 822 dates are an ongoing source of quiet parsing failures | less widely supported than RSS despite being the better specification |
| Metadata | channel and item fields — title, link, description, publication date and guid — are preserved. Namespaced extensions such as podcast tags are not carried across | feed and entry fields — id, title, updated timestamp, link and summary — are preserved. Typed content markup and namespaced extensions are not carried into simpler targets |
Pick ATOM as the output
Select .atom in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if ATOM is selectable, the route is real and validated.
Convert on your device
Press Convert. The font tables are parsed and rewritten locally with fonteditor-core; glyph outlines, hinting, and kerning survive the trip.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid ATOM file. Outputs keep the original filename with the .atom extension.
RSS to ATOM questions, answered
Will converting RSS to ATOM lose quality?
There is no visual quality to lose — rss is text-oriented and atom 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.
Is it private to convert RSS files here?
Yes — the .rss 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.
Where will the ATOM file work?
Read by essentially every feed reader alongside RSS, and produced natively by GitHub, Blogger and several static site generators. Podcast clients generally expect RSS instead. Novus Convert parses it locally and converts to RSS and JSON Feed.
Will the ATOM file be bigger or smaller than my RSS?
It depends on the content: every entry requires a globally unique id, which removes RSS's ambiguity about what identifies an item. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my RSS file?
In .rss, channel and item fields — title, link, description, publication date and guid — are preserved. Namespaced extensions such as podcast tags are not carried across. 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.
Can I convert ATOM back to RSS?
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .rss → .atom → .rss is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.