Add your GEXF file
Drop one or more .gexf 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.
GEXF to JSON
Converting a .gexf font to .json 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 GEXF 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 Graph Exchange XML Format to JSON data
Converting a .gexf font to .json repackages the same glyphs and metrics for a different delivery target. A .gexf file is Gephi's graph interchange format: XML describing nodes and edges with attributes, and — unlike most graph formats — with first-class support for visual properties and for graphs that change over time.
A .json file holds JavaScript Object Notation: nested objects, arrays, strings, numbers, booleans, and null written in a strict text syntax. It is the default data language of the web — most APIs speak nothing else. For this route the practical draw is parsers ship in the standard library of essentially every language and readable by humans and machines alike — balanced against no comments — a perpetual annoyance for configuration files, which is worth knowing before you commit a large batch.
Why convert GEXF to JSON?
The practical trigger for this conversion is usually a mismatch: with .gexf, support outside Gephi and its ecosystem is thinner than GraphML's. Switching to .json buys you parsers ship in the standard library of essentially every language, which is why it is the better fit for rEST and HTTP API request and response payloads. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
GEXF vs JSON at a glance
| Aspect | Graph Exchange XML Format (.gexf) | JSON data (.json) |
|---|---|---|
| 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 graph element's mode attribute is static or dynamic; dynamic graphs attach start and end times to nodes and edges | exactly six value types; no dates, no comments, no trailing commas — the strictness is deliberate |
| Strongest at | saving and sharing Gephi network visualisations with their styling intact | rEST and HTTP API request and response payloads |
| Weak spot | support outside Gephi and its ecosystem is thinner than GraphML's | no comments — a perpetual annoyance for configuration files |
Pick JSON as the output
Select .json in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if JSON 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 JSON file. Outputs keep the original filename with the .json extension.
GEXF to JSON questions, answered
Will converting GEXF to JSON lose quality?
There is no visual quality to lose — gexf is text-oriented and json 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 GEXF files here?
Yes — the .gexf 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 JSON file work?
Browsers parse it natively through JSON.parse, every mainstream language bundles support, and most editors validate and highlight it out of the box. Viewing a raw .json file is possible in any text editor or browser tab.
Will the JSON file be bigger or smaller than my GEXF?
It depends on the content: exactly six value types; no dates, no comments, no trailing commas — the strictness is deliberate. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my GEXF file?
In .gexf, graph meta elements — creator, description, last-modified date — are read; the targets have no equivalent field. 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 JSON back to GEXF?
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .gexf → .json → .gexf is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.