All Your Developer Toolsin One Place

Check color contrast ratios for WCAG AA and AAA across text, buttons, icons, and UI components.

Convert colors between HEX, RGB, HSL, HSV, CMYK, and HWB. Includes tints & shades, WCAG contrast ratio, CSS snippets, and color history.

Gradually desaturate a colour from full saturation to greyscale. Shows 6 steps with live swatches and HEX codes.

Generate harmonious color palettes and schemes.

Extract exact Hex, RGB, and HSL color codes from any image using a precision eyedropper tool.

Invert a colour by flipping its RGB channels. Returns the complementary colour as HEX, RGB, and a live before/after preview.

Convert an Animated PNG (APNG) file to a Base64 string or data URI — paste directly into HTML or CSS without hosting the image.

Encode ASCII text strings to Base64. Commonly used for HTTP headers, API tokens, and config values.

Convert ASCII codes (decimal, hex, or octal) to readable text. Paste your ASCII code list and get the text string output instantly.

Convert audio files (MP3, WAV, OGG, FLAC, AAC) to Base64 strings or data URIs for embedding in HTML or JavaScript.

Convert an AVIF image file to a Base64 string or data URI for embedding in HTML, CSS, or JavaScript.

Encode text to Base64 or decode Base64 to plain text — with URL-safe mode, auto-detect, and size stats.

Create complex CSS border-radius shapes with independent corner controls — from rounded buttons to organic blobs.

Create CSS box shadows visually — adjust offsets, blur, spread, opacity, and inset, then copy ready-to-use CSS code.

Create custom CSS clip-path shapes visually.

Generate CSS background-color code from HEX, RGB, HSL, or named colors with opacity, readable text color, preview, and copy.

Format, indent, and beautify minified or messy CSS code — with configurable indentation and sorting options.

Create CSS border styles with live preview, linked or individual sides, colors, widths, radius, and copy-ready HTML and CSS.

Generate redirect code for Apache (.htaccess), Nginx, IIS (web.config), PHP, HTML meta refresh, and JavaScript. Supports 301, 302, 307, and 308 status codes.

A practical AI workflow reference with prompt templates, evaluation checks, developer use cases, and anti-patterns.

Convert between all four number bases — binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16) — in one tool.

Calculate the bitwise AND of two numbers with decimal, binary, hex, and octal input/output — includes a visual bit-by-bit breakdown.

Convert angle units between degrees, radians, gradians, turns, arcminutes, and arcseconds.

Format Angular templates and component snippets with clean indentation for easier reading, review, and debugging.

Generate realistic-looking random Spanish addresses including street name, number, floor, postal code, city, and province.

Generate beautiful aesthetic emoji combinations for bios, captions, usernames, and social media. Choose from nature, pastel, dark, sparkle, and cute styles.

Generate beautiful aesthetic usernames for Instagram, TikTok, Discord, and more. Choose from clean, underscore, symbolic, or mixed styles.

Combine two random animals to create a unique hybrid creature with a fused name, description, and special trait. Great for creative writing and fun.

Generate barcodes in CODE128, EAN-13, UPC-A, CODE39, and ITF formats — with customizable sizing, colors, and PNG/SVG download.

Generate random US billing postal codes (ZIP codes) with city and state for testing payment forms, e-commerce checkout flows, and address validation.

Convert PNG, JPG, WebP, and SVG images to Base64 strings for direct embedding in HTML, CSS, or JSON payloads.

Censor sensitive areas in an image with pixelate, blur, or blackout boxes and download the redacted PNG locally.

Generate CSS background-image code with image URLs, gradient overlays, size, position, repeat, attachment, live preview, copy, and download.

Create favicons from text, emoji, or images — generates ICO, PNG, and all required Apple Touch icon sizes.

Split animated GIFs into individual PNG frames in the browser, preview frames, and download a single frame or ZIP archive.

View animated GIFs in the browser and inspect frame count, dimensions, loop settings, delays, and GIF metadata.

Convert any HTML and CSS code into a PDF document instantly in your browser — no upload, no server.

Convert JPEG, PNG, and WebP images into a single PDF document — drag to reorder, choose page size.

Combine multiple PDF files into a single document — drag to reorder, merge instantly in your browser.

Convert PDF pages to high-quality JPEG or PNG images — choose DPI, page range, and format.

Make digital PDFs look like scanned documents.

Extract specific pages or split a PDF into separate files — by range, every page, or custom groups.

Generate CRC-16/IBM ARC checksums from UTF-8 text locally in your browser with uppercase output and copy support.

Generate standard CRC-32/ISO-HDLC checksums from UTF-8 text locally in your browser with uppercase output and copy support.

Generate RFC 1319 MD2 hashes from UTF-8 text locally in your browser for legacy compatibility checks.

Generate RFC 1320 MD4 hashes from UTF-8 text locally in your browser for legacy compatibility checks.

Generate RFC 1321 MD5 hashes from UTF-8 text locally in your browser for legacy checksums and compatibility checks.

Generate unkeyed MD6-256 hashes from UTF-8 text locally in your browser with copy and uppercase output support.

Generate SEO title tags, meta descriptions, Open Graph, and Twitter Card tags for any webpage.

Generate Open Graph and Twitter Card meta tags for rich social media link previews.

Build a valid robots.txt file with visual rules, user-agent controls, and sitemap declaration.

Validate XML sitemaps for syntax errors, structure issues, and SEO best-practice compliance.

Convert any text to a clean, SEO-friendly URL slug — handles special characters, accents, and spaces.

Create realistic fake tweet mockups with custom profile, blue checkmark, metrics and dark/light mode.

Convert tweet text to a beautifully designed image card — share quotes, testimonials, and posts on Instagram, LinkedIn, and Pinterest.

Estimate your X (Twitter) creator ad revenue — understand the CPM model, payout thresholds, and revenue-per-impression math.

Download the highest-resolution thumbnail from any public Vimeo video using the Vimeo oEmbed API.

Download thumbnails from any YouTube video in high quality.

Convert an integer between binary, octal, decimal, hexadecimal, and Base36 in one view.

Sort lines, words, or comma-separated items alphabetically with case, duplicate, and direction options.

Convert text to ASCII art using FIGlet-style fonts — create banners for code comments, README files, terminal scripts, and creative displays.

Decode RFC 4648 Base32 text back to UTF-8, with whitespace and padding cleanup.

Encode UTF-8 text to RFC 4648 Base32 with optional padding.

Convert text to Bionic Reading format — bold fixation points guide your eyes for faster reading and better comprehension.