Validated
Invalid JSON is flagged with the parser's message before anything is uploaded.
JSON to URL Converter
Paste JSON and get a URL that serves it as application/json. Use it as a throwaway mock API endpoint, a test fixture, or a way to share a payload.
Create your link
- Limit Up to 100 MB
- Lifetime 24 hours or 7 days
- Formats JSON
- Link in seconds
- Deletes itself
- No account
01How it works
How to convert JSON to a URL
- 01
Paste your text
Type or paste the JSON you want to share. It's validated as you go.
- 02
Choose the lifetime
Keep the link for 24 hours or 7 days. The file is deleted automatically afterwards.
- 03
Copy and share
Copy the link, open it to check it, and paste it anywhere. Recent links stay listed in this browser.
02About
What is JSON to URL?
Front-end work often needs an endpoint before the back end exists. A hosted JSON file is the simplest mock: fetch(url) returns your data with the correct content type, and no server is required.
The JSON is checked before upload, so a missing comma is caught here rather than in your app. Use Format to pretty-print it first, or keep it minified for a smaller response.
Popular uses
- Mock APIs
Point a prototype at a JSON URL while the real API is in progress.
- Fixtures and demos
Load sample data in a CodePen, JSFiddle, or tutorial.
- Sharing payloads
Send an API response or webhook body to a teammate for debugging.
03Features
Why use this JSON to URL tool
Correct content type
Served as application/json, so fetch() and API clients parse it directly.
Minify or format
Minify JSON removes whitespace for a smaller response. Turn it off to upload exactly what you pasted, or use Format to pretty-print it.
Links that clean up after themselves
Every upload is deleted automatically after 24 hours or 7 days, so nothing lingers.
No account, no email
Upload and share straight away. There's nothing to sign up for or log in to.
HTTPS everywhere
Uploads and links use encrypted HTTPS connections from end to end.
04FAQ
JSON to URL: frequently asked questions
How do I host a JSON file online?
Paste your JSON, select Create link, and copy the URL. Requesting that URL returns your JSON with the application/json content type.
Can I fetch the JSON from JavaScript?
Usually yes: fetch(url).then(r => r.json()). If your page runs on another domain, the storage server's CORS settings decide whether the browser allows the request, so test it from your page.
Can I update the JSON at the same URL?
No. Each upload creates a new, unchangeable link. Upload the new version and use its link.
How long does the link last?
You choose: 24 hours or 7 days. After that the file is deleted automatically and the link stops working. Links can't be extended. Upload the file again for a new link.
Who can see my upload?
Anyone who has the link. Links are long and random, so they can't be guessed, but anything you share can be forwarded. Don't upload passwords, ID documents, or other sensitive data.
Is it free? Do I need an account?
Yes, it's free, and no account, email, or sign-up is needed. Each file can be up to 100 MB, and the service limits how many uploads you can make in a short time.
Can I delete a link before it expires?
Not from this page yet; every link is removed automatically after its lifetime (at most 7 days). To report content that breaks the rules, use the contact page.
05More tools
More free link tools
Share other kinds of content the same way.
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