Upload a JSON File and Get a Direct URL
Config files, API fixtures, exported data, NFT metadata — sometimes you just need a JSON file living at a URL.
Upload JSON nowDevelopers hit this constantly: a mock API response for a prototype, a config a colleague needs, a data export for a bug report, token metadata that must live at a stable address. Standing up hosting for one file is overkill; pasting 400KB of JSON into Slack is crime-adjacent. Direct file hosting is the middle path — the file gets a permanent URL, served with application/json, fetchable from any code.
How to upload a JSON file
- 1
Upload the .json at foldr.space
Any size from one-line configs to multi-hundred-MB data exports.
- 2
Copy the URL
Served with the correct application/json content type.
- 3
Fetch it from anywhere
fetch() in a prototype, curl in a script, requests.get() in Python — or just send the link to a teammate.
Drag-drop UI you might recognize
If you found this page by searching one of these phrases — yes, Foldr.Space does exactly that for JSON files:
- “Drop files here to upload”
- “Click to upload or drag and drop”
- “Drop your file here”
Frequently asked questions
Can I use this as a poor man's API?
For read-only fixture data, yes — point your prototype's fetch at the URL. For anything needing writes or auth, use a real backend. (If you're building agents: Foldr also has a full REST API and MCP server — see foldr.space/developers.)
Is CORS enabled?
Files are served for direct browser fetches. Test your specific cross-origin setup; for production apps you'll want your own infrastructure anyway.
Does it work for NFT/token metadata?
Yes — permanent Pro hosting means the metadata URL keeps resolving. See foldr.space/crypto-token-hosting for that workflow specifically.
Pretty-printed or minified?
Whatever you upload — the file is never rewritten, reformatted, or re-encoded.
Other file formats
Upload your JSON now
Drop the file, copy the link, send to anyone. No account required.
Upload a JSON