Obfuscate JSON
Replace keys and values with random data of the same shape. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Obfuscate JSON
- 1. Paste your JSON. Paste the JSON object you want to anonymize. The structure, meaning the shape of objects and arrays, stays exactly the same; only the actual content changes.
- 2. Choose what to randomize. Turn on Keys to replace property names with random strings, Strings to replace text values, and Numbers to replace numeric values, mixing and matching depending on what needs to stay hidden.
- 3. Copy the obfuscated result. Copy the resulting JSON, which keeps the same shape and depth as your original but replaces the chosen keys or values with random data of matching type.
When to use Obfuscate JSON
Obfuscate JSON replaces keys and values with random data while preserving the exact shape of the original structure, which is different from redacting real fields since nothing here is your actual data. Reach for it when you need realistic-looking JSON without any real information in it.
- Generating a shareable structural example. You want to show a support team or a vendor the shape of your data without exposing any real customer names, IDs or numbers, only a same-shaped stand-in.
- Creating load-test data that isn't real. You need a batch of JSON records with the same structure as production data to run a load test, without using actual customer or business information.
- Building a demo dataset for a presentation. You are demoing a product's data model in front of an audience and want realistic-looking JSON on screen without displaying any genuine records.
- Testing how a UI handles unexpected values. You want to feed your application random strings and numbers in place of real data, keeping the JSON's shape intact, to see how the interface reacts to unfamiliar content.
Examples
Obfuscate an object
Input
{"name": "Ada", "pin": 1234}Output
{
"gpzq": "Kfa",
"wjh": 8271
}About the Obfuscate JSON tool
Obfuscate JSON runs as plain JavaScript in your browser tab, with no server behind it. Replace keys and values with random data of the same shape. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's JSON Tools section, 90 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
You can shape the output with 3 settings, including Keys, Strings and Numbers, and the result refreshes the moment you change one. A worked example further down the page shows exactly what the tool produces for a real input.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Does Obfuscate JSON cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.