Developer Tools
Use the developer tools category for quick formatting and conversion jobs that interrupt coding, analytics, QA, and documentation work. These lightweight utilities are designed for copy-paste workflows and fast validation.
13 free tools - No login required
Quick answer
The developer tools category gives you browser-friendly utilities for JSON formatting, URL extraction, UTM building, and list-to-CSV conversion.
Free QR Code Generator
Create custom QR codes with colors, logo, PNG and SVG export.
Free Email Verifier
Check email format, MX records, role address, and disposable risk.
JSON Formatter & Validator
Format, minify, and validate JSON with error highlighting.
URL Extractor
Extract all URLs from text or HTML content.
UTM Builder
Build UTM tracking URLs for campaign analytics.
List to CSV Converter
Convert any list into a downloadable CSV file.
HTML Minifier
html minifier with instant browser-side output.
CSS Minifier
css minifier with instant browser-side output.
JS Minifier
js minifier with instant browser-side output.
XML Formatter
xml formatter with instant browser-side output.
HTML Entity Encoder Decoder
html entity encoder decoder with instant browser-side output.
URL Parser
url parser with instant browser-side output.
Regex Tester
regex tester with instant browser-side output.
How do developer tools save time?
Use these tools for small repeatable tasks: create QR codes, verify email basics, validate structured text, extract links from a document, build campaign URLs, or convert rows into CSV before moving data into another system.
Developer Tools FAQ
Do developer tools run locally?
These utilities are designed for browser-side workflows where possible, so pasted text can be formatted, converted, copied, or downloaded quickly.
Can I use the JSON formatter for schema markup?
Yes. You can format JSON-LD before validating it with the schema validator or publishing it on a page.
Are UTM links saved?
No. The UTM builder creates the URL in your browser for you to copy or export.