Web & Development

Web Development and Code Tools

Format code, test APIs, generate assets, essential tools for web developers.

CSS Minifier

Minify CSS to reduce file size or beautify for readability. Optimize stylesheets for production.

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HTML Minifier

Minify HTML to reduce page size or beautify for readability. Optimize markup for production.

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JS Minifier

Minify JavaScript for production or beautify for readability. Optimize code performance and size.

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QR Code Generator

Generate QR codes for URLs, text, Wi-Fi credentials, contact cards. Customize appearance and download.

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Robots.txt Generator

Create robots.txt files to control how search engines crawl your website. Block or allow specific paths.

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API Tester

Test REST API endpoints directly from your browser. Send requests, inspect responses and headers.

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Cron Generator

Generate cron expressions for scheduled tasks. Visual builder with plain-English descriptions.

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Cost Calculators

Estimate project costs for development, design, consulting. Calculate hourly rates, fixed pricing, budgets.

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About Web & Development tools

Streamline web development with tools for every stage: format and validate JSON, minify CSS/HTML/JS, test regular expressions, generate QR codes, build robots.txt files, test API endpoints, and create cron expressions.

These utilities run entirely in your browser, letting you work with code and data locally without exposing API keys, proprietary code, or sensitive configuration to third-party services.

Frequently asked questions

The API tester can send requests to any endpoint, but CORS (Cross-Origin Resource Sharing) policies may block requests to some APIs. APIs must allow browser-based requests or you'll see CORS errors.

Yes. CSS, HTML, and JS minifiers remove whitespace, comments, and unnecessary characters, typically reducing file size 20-40%. This improves page load times without changing functionality.

Yes. The regex tester highlights all matches, shows capture groups, provides match indices, and lets you test with different flags (global, case-insensitive, multiline).
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