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Tools

Small, free tools I built because I needed them. Every one runs entirely in your browser — nothing you paste, type, or upload leaves your computer.

No accounts, no limits, no tracking. All of them are open source .

WordPress

PHP serialized data repair

Runs here

Repair serialized data that a database search-replace broke, and see what is actually inside it.

PHP WordPress Zero-backend
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wp-config.php builder

Runs here

A whole wp-config.php, not just salts, with the constants people forget until something goes wrong.

PHP WordPress Zero-backend
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WooCommerce

CSS & layout

PX to REM converter

Runs here

Pixels to rem and back, at whatever root font size your project uses.

CSS Zero-backend
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PX to EM converter

Runs here

Pixels to em and back, plus the compounding behaviour that makes em bite.

CSS Zero-backend
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PX to Tailwind converter

Runs here

Turn a pixel value into the Tailwind utility that produces it, and find out when there isn't one.

Tailwind CSS 4 Zero-backend
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LiveMarkup

App

Paste HTML, CSS and JS, see it render instantly. No account, no project setup, nothing to save.

JavaScript ACE Editor Prettier Zero-backend
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Writing & editing

LiveMarkdown

App

Write Markdown and watch it render, including the maths and diagrams most quick previewers skip.

JavaScript KaTeX Mermaid Zero-backend
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Files & data

TweakCSV

App

A spreadsheet-grade CSV editor that runs in a tab, for the files you shouldn't upload to a stranger's server.

React AG Grid Papa Parse IndexedDB
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quickOCR

App

Pull text out of a screenshot without sending the screenshot anywhere.

React Tesseract.js WebAssembly
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