Developer Tools

Build CSS box shadows visually with live preview. Adjust offset, blur, spread, colour, and opacity. Stack multiple layers and copy the CSS.

Create beautiful CSS gradients with a visual builder. Choose colours, positions, angles, and gradient type. Copy the CSS with vendor prefixes.

Minify CSS by removing comments, whitespace and unnecessary characters. See original and minified size with savings percentage. Copy or download the result.

Minify JavaScript by removing comments and collapsing whitespace. See compression statistics with original and minified size comparison.

Decode JWT tokens to see the header, payload and expiry status. Colour-coded sections with formatted JSON output. Paste any JWT to inspect its contents.

Convert pixels to REM units and back. Set your base font size, see a reference table of common values, and copy CSS with one click.

Encode text to HTML entities or decode entities back to text. Handles named, numeric and hex entities. Bulk text support with instant copy to clipboard.

Convert any title or text into a clean URL-friendly slug. Options for separator style, max length and accent transliteration. Copy to clipboard instantly.

Decode JWT tokens to see the header, payload and expiry status. Colour-coded sections with formatted JSON output. Paste any JWT to inspect its contents.

Encode text to Base64 or decode Base64 back to text. Supports UTF-8 with auto-convert mode and copy buttons

Encode text to HTML entities or decode entities back to text. Handles named, numeric and hex entities. Bulk text support with instant copy to clipboard.

Encode and decode URLs and query parameters. Supports encodeURIComponent for params and encodeURI for full URLs

Build CSS box shadows visually with live preview. Adjust offset, blur, spread, colour, and opacity. Stack multiple layers and copy the CSS.

Create beautiful CSS gradients with a visual builder. Choose colours, positions, angles, and gradient type. Copy the CSS with vendor prefixes.

Minify CSS by removing comments, whitespace and unnecessary characters. See original and minified size with savings percentage. Copy or download the result.

Convert pixels to REM units and back. Set your base font size, see a reference table of common values, and copy CSS with one click.

Encode text to Base64 or decode Base64 back to text. Supports UTF-8 with auto-convert mode and copy buttons

Encode text to HTML entities or decode entities back to text. Handles named, numeric and hex entities. Bulk text support with instant copy to clipboard.

Encode and decode URLs and query parameters. Supports encodeURIComponent for params and encodeURI for full URLs

Generate QR codes for website URLs and plain text. Download as PNG or SVG with custom colours. Free, instant, no sign-up required.

Convert any title or text into a clean URL-friendly slug. Options for separator style, max length and accent transliteration. Copy to clipboard instantly.

Encode and decode URLs and query parameters. Supports encodeURIComponent for params and encodeURI for full URLs

Generate QR codes for website URLs and plain text. Download as PNG or SVG with custom colours. Free, instant, no sign-up required.

Generate placeholder lorem ipsum text by paragraphs, sentences or words. Copy to clipboard with word and character count display

Convert any title or text into a clean URL-friendly slug. Options for separator style, max length and accent transliteration. Copy to clipboard instantly.

Preview how your page will appear in Google search results, Twitter cards and Facebook shares. Generate HTML meta tags with character warnings

Build a robots.txt file visually with rules for different bots. Quick presets for common configurations including AI crawler blocking

Convert any title or text into a clean URL-friendly slug. Options for separator style, max length and accent transliteration. Copy to clipboard instantly.

Calculate and convert aspect ratios for images and video. Lock ratios, use platform presets for Instagram, YouTube, TikTok, and more. Shows megapixels and orientation.

Build CSS box shadows visually with live preview. Adjust offset, blur, spread, colour, and opacity. Stack multiple layers and copy the CSS.

Create beautiful CSS gradients with a visual builder. Choose colours, positions, angles, and gradient type. Copy the CSS with vendor prefixes.

Generate strong, secure passwords with customisable length and character options. Uses cryptographically secure randomisation.

Generate random UUID v4 identifiers. Bulk generation up to 100, with options for uppercase and with or without hyphens

Build and understand cron expressions with an interactive visual editor. Click to set schedules, see plain-English translations and next run times.

Generate QR codes for website URLs and plain text. Download as PNG or SVG with custom colours. Free, instant, no sign-up required.

Format, minify and validate JSON with syntax highlighting. Shows error locations, key count, nesting depth and size stats

Decode JWT tokens to see the header, payload and expiry status. Colour-coded sections with formatted JSON output. Paste any JWT to inspect its contents.

Format, minify and validate JSON with syntax highlighting. Shows error locations, key count, nesting depth and size stats

Format messy SQL queries with proper indentation and keyword highlighting. Options for uppercase keywords and indent size. Supports SELECT, JOIN, WHERE and more.

Write markdown and see a live rendered preview side by side. Supports headers, bold, italic, links, images, code blocks, lists and more

Test regular expressions with live match highlighting, captured groups and match positions. Quick-insert buttons for common patterns

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes from any text. All four algorithms calculated simultaneously with copy buttons