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PHP Serialize and Unserialize
Converts PHP serialized strings to readable JSON and back, useful for debugging WordPress and legacy data.
Developer
Nothing uploaded
No sign-up
Free, unlimited
Paste something on the left to see the result.
In short
PHP Serialize and Unserialize is a free online tool on inputtesthub.com that converts PHP serialized strings to readable JSON and back, useful for debugging WordPress and legacy data. It needs no account, no download and no payment, and there is no daily usage limit. Everything is processed inside your own browser, so the data you paste is never uploaded to a server.
How to use the PHP Serialize and Unserialize
- Paste your code into the input area.
- Choose the indentation and output options you want.
- Read the formatted result, then copy or download it.
About the PHP Serialize and Unserialize
The PHP Serialize and Unserialize converts PHP serialized strings to readable JSON and back, useful for debugging WordPress and legacy data. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.
What people use it for
- Reading a WordPress option or meta value.
- Fixing a serialized string broken by a search-and-replace.
- Migrating legacy PHP data.
Serialized strings store byte lengths. If a database search-and-replace changed a string without updating its length prefix, the data will not unserialize — this tool will show you exactly which segment is wrong.
Frequently asked questions
Are there any usage caps on the PHP Serialize and Unserialize?
There is no cost and no cap. The PHP Serialize and Unserialize is not a demo of a paid product, so nothing is held back or watermarked.
Is my data uploaded anywhere?
No. The PHP Serialize and Unserialize runs entirely in your browser using JavaScript. Nothing is transmitted, logged or stored, which you can verify yourself in the Network tab of your browser's developer tools.
When would I actually need the PHP Serialize and Unserialize?
Typical uses: reading a WordPress option or meta value. Fixing a serialized string broken by a search-and-replace. Migrating legacy PHP data. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Any caveats I should know about?
Serialized strings store byte lengths. If a database search-and-replace changed a string without updating its length prefix, the data will not unserialize — this tool will show you exactly which segment is wrong.
Can I use the PHP Serialize and Unserialize on mobile?
Yes. The page is responsive and the page works in Chrome, Safari, Firefox, Edge and Samsung Internet on both Android and iOS. There is no app to install and nothing to sign into.
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