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12 free tools

Free Website Development Tools

Speed and uptime checks, formatters, minifiers, JSON, URL and UTM tools, image compression and colour palettes. Free to use, no sign-up.

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Free Website Development Tools: Speed and uptime checks, formatters, minifiers, JSON, URL and UTM tools, image compression and colour palettes. Free to use, no sign-up. This page lists 12 free tools, including HTML Formatter, CSS Formatter, HTML Minifier and CSS Minifier. All of them are free, need no sign-up and run in your browser.

HTML FormatterBeautify minified or messy HTML with clean indentation.Runs in your browserCSS FormatterBeautify minified CSS with clean indentation and nested media queries.Runs in your browserHTML MinifierShrink HTML safely and see how many bytes you save.Runs in your browserCSS MinifierCompress CSS safely and see the size saved.Runs in your browserJavaScript MinifierMinify JavaScript with Terser and see the bytes saved.Runs in your browserJSON Formatter and ValidatorValidate, format, minify and explore JSON with exact error positions.Runs in your browserURL Encoder and DecoderEncode, decode and parse URLs, and build UTM campaign links.Runs in your browserImage Compression ToolCompress, resize and convert images to WebP without uploading them.Runs in your browserColor Palette GeneratorCreate colour palettes, check contrast and export CSS or Tailwind code.Runs in your browserWebsite Speed CheckerMobile and desktop speed scores, Core Web Vitals and top fixes.Free Google dataWebsite Uptime CheckerIs a site down? Check DNS, HTTP status, speed and SSL expiry now.Checked on our serverResponsive Design TesterPreview a page on phone, tablet and desktop and find mobile issues.Checked on our server
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SEO ToolsAudit websites, research keywords, write meta tags, generate schema and check links, headings, canonicals and redirects.AI Writing ToolsDraft blog posts, product and business descriptions, emails and ad copy with proven copywriting formulas.Social Media ToolsCaptions, bios, hashtags, posts, YouTube titles, content calendars and engagement maths.Digital Advertising ToolsBudget, CPC, CPM, CTR, ROAS, ROI, conversion and cost-per-lead calculators for Google and Meta ads.Local SEO ToolsLocal audits, Google Business descriptions and posts, review replies, local keywords, citations and NAP checks.Business & Marketing ToolsBudgets, strategies, personas, funnels, competitor analysis, business names, slogans, proposals and pricing.Creative ToolsLogo concepts, social and ad images, YouTube thumbnails, product photos, background removal and image enhancement.Everyday ToolsWeather, QR code maker and scanner, currency and unit converters, calculators, notes, expenses and WhatsApp tools.PDF & Image ToolsScan documents, merge, split and compress PDFs, convert images to PDF, and resize, crop, convert and watermark images.Developer ToolsJSON, YAML, Base64, hashes, JWT, regex, UUIDs, timestamps, diffs, colours, DNS, SSL and HTTP header checks.
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FAQ

Free Website Development Tools: common questions

Are these website development tools really free?

Yes. All 12 website development tools on this page are 100% free to use, with no trial, no credit card and no limit on everyday use. A free account is optional and only saves your work so you can open it on your other devices.

Do I need to sign up or install anything?

No. Every tool works straight in your browser on a phone, tablet or computer. Most of them also work offline in the free Hayyat Networks Android app. Signing in with Google or email is optional and keeps your saved data synced.

Is my data private when I use these tools?

Tools that run in your browser process everything on your own device, and nothing you type is sent to us. Tools marked as checked on our server only read public information such as a website address. We never sell or share your data.

Which website development tools should I start with?

Most people start with Color Palette Generator, CSS Formatter and CSS Minifier. Each tool page explains how it works, the formulas or checks it uses and its limitations, so you can pick the right one and trust the result.

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