Simple JSON storage and personalization

Add dynamic content, forms or personalization to your headless or static website, mobile app, IoT device, autonomous AI agent, or LLM tool calling workflows!

Free to use · No account required · 31-day trial on paid plans

API First

Try now, no authentication required

Use the snippets below as an example or check out documentation at github.com/jsonstorage/docs. Add dynamic content, forms or personalization to your static site, manage smart home, store state for AI agents, monitor server room temperatures in hundreds of locations using Raspberry Pi, or simply play with the API - JsonStorage is super simple and scales up to your needs.

Request JSON (JSFiddle)

GET /v1/json/(userId)/(itemId) - Response: 200 OK - Your JSON data returned.

Create JSON (JSFiddle)

POST /v1/json - Response: 201 Created - {"uri" : "https://api.jsonstorage.net/ v1/json/(userId)/(itemId)"}.

Update JSON (JSFiddle)

PUT /v1/json/(userId)/(itemId) - Server response: 200 OK - {"uri" : "https://api.jsonstorage.net/ v1/json/(userId)/(itemId)"}.

Patch JSON (JSFiddle)

PATCH /v1/json/(userId)/(itemId) - Server response: 200 OK - {"uri" : "https://api.jsonstorage.net/ v1/json/(userId)/(itemId)"}.

(NEW) Submit a form (JSFiddle)

POST /v1/form with "api_key" hidden field - Server response: 200 OK or redirect to "redirect_url" hidden field value

Enrich the experience

Manage and serve personalized content anywhere

Personalization

Personalize content of your headless or static website by using Rules Engine

Content Management

Use the app to easily create and update content, manage form submissions, and more

Feature rich

Exciting platform capabilities

Works on all devices

Post the data from desktop app, get it from web/mobile app or vice versa.

Flexible API

All requests support cross-origin resource sharing (CORS).

Free Tier

Generous free tier to get started — upgrade anytime when you need more storage, limits, or support.

Secure

You can get the data only if you know the ID. All requests are server over SSL.

No Tracking

The rules are based on real-time request details, we do not store any analytics information.

AI-Friendly API

Simple REST API with JSON — perfect for AI agents, LLM tool calling, and automated workflows.

Step by step

Let’s see how it works

Add the content using API or UI

We support JSON format which is the most suitable and popular.

Configure personalization rules

Setup and reuse intents, fallback content and assign multiple variants.

Create unlimited API keys

With granular permissions (read-only, create-only, etc.)

Serve personalized content

The rules allow you to personalize the journey based on query string, headers, location and more.

Built for end users

Easily manage content and collaborate

Get your content personalized in no time by using simple UI app and pre-built connectors for modern JS frameworks, such as React, NextJS, Vue.

Pricing

Start with a free 31-day trial

Get started for free — no account needed. Every paid plan includes a 31-day free trial so you can try before you commit. The free tier includes 25 items, 1,000 requests per month, and up to 64kb per item. Upgrade when you need more storage, higher limits, or priority support.

✓ Free tier, no signup needed

✓ 31-day trial on paid plans

✓ Cancel anytime

✓ Secure payments via Stripe

Need help choosing a plan? Contact us @jsonstorage

Common questions answered

Frequently asked questions

What happens when I exceed the free tier limits?

The free tier includes 25 items, 1,000 API requests per month, and up to 64kb per item. If you reach these limits, requests may be rate-limited. Every paid plan starts with a free 31-day trial, so you can scale up without any interruption.

Can I cancel my subscription anytime?

Yes, absolutely. You can cancel your subscription at any time from the app dashboard. There are no long-term contracts or cancellation fees. After cancellation, you'll continue to have access until the end of your current billing period, then your account reverts to the free tier.

How is my data stored and secured?

All data is stored on Cloudflare's global edge network with encryption at rest and in transit. API requests are served over SSL. Your JSON data is only accessible if the requester knows the unique item ID — there is no public directory of stored items.

What payment methods do you accept?

We use Stripe for secure payment processing. You can pay with all major credit and debit cards (Visa, Mastercard, American Express) as well as other payment methods supported by Stripe in your region. All payment information is handled directly by Stripe — we never store your card details.

Is there a free trial for paid plans?

Yes! Every paid plan includes a 31-day free trial. You'll need to provide a payment method when starting the trial, but you won't be charged until the trial period ends. If you cancel before the trial is over, you won't be charged at all. You can also use the free tier indefinitely with no account or credit card required.

What kind of support do I get?

Support varies by plan. Free tier users can reach out via Twitter (@jsonstorage). Paid plans include standard and priority support depending on the tier. We also maintain documentation and examples at our GitHub repository to help you get started quickly.