Add your ATOM file
Drop one or more .atom 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.
ATOM to JSONFEED
Converting a .atom font to .jsonfeed 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 ATOM 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 Atom feed to JSON Feed
Converting a .atom font to .jsonfeed repackages the same glyphs and metrics for a different delivery target. 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.
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. For this route the practical draw is parses with a standard JSON library — no namespaces, no entities, no XML pitfalls and distinguishes plain-text and HTML content explicitly — balanced against far less widely supported than RSS or Atom, which is worth knowing before you commit a large batch.
Why convert ATOM to JSONFEED?
The practical trigger for this conversion is usually a mismatch: with .atom, less widely supported than RSS despite being the better specification. Switching to .jsonfeed buys you parses with a standard JSON library — no namespaces, no entities, no XML pitfalls, which is why it is the better fit for feeds consumed by JavaScript clients that would otherwise need an XML parser. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
ATOM vs JSONFEED at a glance
| Aspect | Atom feed (.atom) | JSON Feed (.jsonfeed) |
|---|---|---|
| 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 | every entry requires a globally unique id, which removes RSS's ambiguity about what identifies an item | the version field is a URL, which doubles as documentation and as an unambiguous version marker |
| Strongest at | publishing a feed where content type and identity must be unambiguous | feeds consumed by JavaScript clients that would otherwise need an XML parser |
| Weak spot | less widely supported than RSS despite being the better specification | far less widely supported than RSS or Atom |
| Metadata | 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 | feed and item fields — id, url, title, summary and publication date — are preserved. Attachments and typed HTML content are not represented in every target |
Pick JSONFEED as the output
Select .jsonfeed in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if JSONFEED 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 JSONFEED file. Outputs keep the original filename with the .jsonfeed extension.
ATOM to JSONFEED questions, answered
Will converting ATOM to JSONFEED lose quality?
There is no visual quality to lose — atom is text-oriented and jsonfeed 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 ATOM files here?
Yes — the .atom 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 JSONFEED file work?
Supported by micro.blog, NetNewsWire, Feedbin and a number of static site generators; ignored by most older readers and by podcast clients. Novus Convert parses it locally and converts to RSS and Atom, which is the practical way to reach readers that do not speak it.
Will the JSONFEED file be bigger or smaller than my ATOM?
It depends on the content: the version field is a URL, which doubles as documentation and as an unambiguous version marker. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my ATOM file?
In .atom, 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. 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 JSONFEED back to ATOM?
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .atom → .jsonfeed → .atom is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.