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Convert Single Quotes to Valid JSON

Repair JSON-like objects that use single quotes, unquoted keys or Python booleans and output valid JSON.

Transform common JavaScript- or Python-like object notation into strict JSON when the structure is otherwise simple and unambiguous.
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Data Tools

Free  ·  Local browser processing  ·  No signup

What this tool helps you do

Transform common JavaScript- or Python-like object notation into strict JSON when the structure is otherwise simple and unambiguous.

This page uses the same tested Fix Invalid JSON engine as the main tool, but focuses on this specific task so you can get straight to the relevant workflow without hunting through a generic converter.

How to use it

  1. Paste or enter the content you want to process in the tool above.
  2. Use the preselected mode when this task has a specific mode, then click Run.
  3. Review the output, then copy or download it if the tool provides a download option.

Common uses

  • Cleaning AI outputs
  • Converting Python-style dictionaries
  • Repairing manually typed API payloads

Example

Input: {'name':'Ana','active':False}

Expected result: { "name": "Ana", "active": false }

Useful tip

Strings containing apostrophes can be ambiguous during automatic quote repair, so review complex text values carefully.

Frequently asked questions

Is this tool free?

Yes. The tool is free to use, requires no account and runs directly in your browser.

Is my input uploaded to a server?

No. The tool processes the input locally in your browser. Your tool input is not sent to ToolboxApp servers.

When should I use Fix Invalid JSON?

Cleaning AI outputs, converting python-style dictionaries, or repairing manually typed api payloads.