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How PHP Serialize and Unserialize Work
Decode PHP serialized strings online, free, in your browser. How the format works, why multibyte data breaks it, and how to debug WordPress wp_options.
Free Tools for Remote Developers: My Actual Browser-Tab Toolkit
The free browser tools I keep open as a remote developer: JSON, Base64, regex, timestamps, image compression, and the honest gaps. No installs.
Reverse a String Online: How This Tool Works, Emoji and All
Reverse text online free and instantly. An honest guide to character reversal, why emojis break, and how to do it properly in JavaScript, Python & Go.
Image Optimization for SEO: What Actually Moves Core Web Vitals
A developer's honest guide to image optimization for SEO โ format choice, compression, srcset, and the browser gotchas nobody warns you about.
How to Reorder Pages in a PDF, Step by Step
Organize PDF pages online free - drag and drop to reorder, rearrange & sort pages. Combine pages from multiple PDFs. No signup needed. Try toolz.dev now!
How to Rotate PDF Pages Online: Fix Orientation in Seconds
Rotate PDF pages online free - fix upside down or sideways pages in seconds. Rotate individual or all pages 90/180 degrees. No signup needed. Try toolz.dev now!
Edit PDFs Without Adobe: Free Online PDF Tools Guide (2026)
Edit PDFs without Adobe Acrobat using free online tools. Merge, split, compress, rotate & organize PDFs in your browser. No software needed. Try toolz.dev now!
Can Computer Text Pass as Real Handwriting?
Turn typed text into a handwritten-style image online, free. An honest look at how the tool works, its 15 fonts, and where the illusion breaks.
CSV to JSON: The Type Inference Will Eat Your Zip Codes
Convert CSV to JSON free in your browser, no signup. What automatic type inference silently does to zip codes, money and IDs โ and how to catch it.