Use Double Quotes in JSON
Make all keys and values in a JSON double-quoted. 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 Use Double Quotes in JSON
- 1. Paste your single-quoted data. Put a single-quoted JavaScript object literal or JSON5-style document into the input pane. Nothing needs configuring; conversion starts as soon as text arrives.
- 2. Let it convert every quote. Every single quote around a key or string value gets replaced with a standard double quote, turning loose JavaScript-object syntax into strict, spec-compliant JSON.
- 3. Copy the strict JSON. Copy the resulting double-quoted document and use it anywhere a validator, API or parser insists on standard JSON rather than the more permissive syntax JavaScript allows.
When to use Use Double Quotes in JSON
Use Double Quotes in JSON converts single-quoted keys and values into the double quotes strict JSON requires. Reach for it whenever JavaScript-flavored object syntax needs to pass as valid JSON for an API, a schema validator or a parser that won't accept anything looser.
- Converting a hardcoded JS config object. A developer wrote a config as a JavaScript object with single quotes, and now it needs to be sent to an API that only accepts strict JSON in the request body.
- Fixing output from a lenient tool. A tool exported data using single quotes instead of the JSON standard, and the next step in your pipeline is a strict JSON parser that rejects it outright.
- Preparing input for a JSON schema validator. You copied a sample from documentation that used single quotes for readability, but the validator you're testing against only accepts properly double-quoted JSON.
- Converting a Python dict to JSON. You have a Python dictionary literal with single-quoted keys and values that needs to become valid JSON before it can be sent to a JavaScript frontend or saved as a .json file.
Examples
Convert single-quoted JavaScript style to strict JSON
Input
{'name': 'Ada', 'age': 36}Output
{"name": "Ada", "age": 36}About the Use Double Quotes in JSON tool
Use Double Quotes in JSON runs as plain JavaScript in your browser tab, with no server behind it. Make all keys and values in a JSON double-quoted. 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.
There is nothing to configure. Provide the input and the result appears on its own. 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
Is Use Double Quotes in JSON free to use?
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?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
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?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
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.