// tools
Free Online Tools for Developers & Designers
Free online tools for developers and designers — color pickers, converters, text utilities, random generators, favicon generators, and more.
Web Tools
Generators and utilities for web development.
Image Metadata Viewer
Upload any image to see file info and EXIF metadata — camera make, model, date taken, GPS location, ISO, aperture, shutter speed.
URL Analyzer
Decompose any URL into its protocol, hostname, port, pathname, query parameters, and hash. Also encode and decode URL components.
Favicon Generator — ICO, PNG & Web Manifest
Generate a complete favicon package from any image — ICO, iOS, Android, Windows tile, web manifest, and more.
Online Image Converter — PNG, JPEG & WebP
Convert images between PNG, JPEG, and WebP formats in your browser. Batch convert and download as ZIP.
PNG to ICO Converter Online — JPG & Image to ICO
Convert PNG, JPG, or any image to ICO format with multiple sizes in a single file. Perfect for favicons and app icons.
PNG to ICNS Converter Online — macOS App Icon
Convert PNG or any image to macOS ICNS format with all standard Apple icon sizes for app development.
Robots.txt Generator
Build a robots.txt file visually. Set crawl rules per bot, add sitemaps, and use common presets.
Font Converter
Convert fonts between WOFF2, WOFF, TTF, EOT, and SVG formats in your browser. Preview the font and download.
Ebook Converter
Convert ebooks between 25+ formats — EPUB, MOBI, AZW, PDF, RTF, TXT and more. No software to install.
Ebook Reader
Read EPUB ebooks in your browser. Upload MOBI, AZW, FB2, and 20+ other formats — they convert automatically.
Aspect Ratio Calculator
Calculate width, height, or ratio for any aspect ratio. Useful for scaling responsive images and sizing video embeds.
Meta Tag Generator
Generate complete HTML meta tags for SEO, Open Graph, and Twitter Cards in one form.
SVG to Data URI
Convert SVG files or code to base64 and URL-encoded data URIs for use in CSS and HTML.
Unit Converter
Convert between Length, Weight, Temperature, Area, Volume, Speed, Time, and Digital Storage units instantly.
Timezone Converter
Convert any date and time across 27 major world time zones simultaneously. Handles DST automatically.
Loan Calculator
Calculate monthly loan payments, total interest, and total cost. Includes a 12-month amortization table.
Age Calculator
Calculate exact age in years, months, and days from a birth date. Shows total days, weeks, next birthday, and zodiac sign.
IP Address Lookup
Look up any IP address to find its city, region, country, ISP, timezone, and GPS coordinates. Auto-detects your own IP.
IBAN Validator & Formatter
Validate and parse IBAN bank account numbers. Check the checksum and identify the country and bank code.
Image Compressor
Compress JPEG, PNG, and WebP images in your browser. Reduce file size without uploading to any server. Batch up to 5 images.
Image Resizer
Resize JPEG, PNG, and WebP images directly in your browser. Maintain aspect ratio, choose output format. No server upload.
Percentage Calculator
Three percentage calculators: find X% of a number, what percentage X is of Y, and calculate percentage change.
Icon Font Generator
Upload SVG icons and generate a complete icon font package — TTF, WOFF, WOFF2, CSS classes, and HTML demo as ZIP.
Icon Font Extractor
Upload any icon font and extract all glyphs as individual SVG files. Optionally load a CSS file to map icon names. Download as ZIP.
QR Code Generator
Generate QR codes from any URL, text, or contact info. Customize size, colors, and error correction. Download as PNG.
Color Tools
Color pickers, converters, checkers, and reference charts.
Color Contrast Analyzer
Check WCAG 2.1 contrast ratios for any color pair. Pass/fail for AA and AAA levels — plus automatic suggestions and live text preview.
Color Blindness Simulator
Upload any image to see how it appears with Protanopia, Deuteranopia, Tritanopia, and Achromatopsia.
Online Color Picker — HEX, RGB & HSL
Pick any color visually with a canvas-based HSV picker. Export as HEX, RGB, or HSL.
Color Wheel Online — Interactive HSL Color Picker
Interactive HSL color wheel. Click any point to pick its hue and saturation.
Image Color Picker — Sample Colors from Photos
Upload any image and click to sample colors directly from pixels.
HEX to RGB Color Converter
Convert HEX color codes to RGB, HSL, HSV, and CMYK values instantly.
RGB to HEX Color Converter
Set R, G, B values with sliders or inputs and get the HEX, HSL output.
Color Contrast Checker — WCAG AA & AAA Compliance
Check WCAG 2.1 color contrast ratio for AA and AAA compliance. Live text preview.
Color Mixer & Gradient Generator
Blend two colors together with a ratio slider. Get a full gradient palette.
CSS Color Names — All 148 Named Colors
Browse all 148 CSS named colors with their HEX and RGB values.
Material Design Color Chart & Palette
Material Design color palette — 19 hue families × 10 shades each.
Minecraft Color Codes & Formatting
All Minecraft §-prefixed color and formatting codes with previews.
Roblox Color Codes & BrickColor IDs
Complete Roblox BrickColor palette with color IDs and RGB values.
Color Palette Generator
Generate harmonious color palettes from a base color using complementary, triadic, and analogous schemes.
Color Format Converter
Convert colors between HEX, RGB, HSL, HSV, CMYK, and CSS named color formats instantly.
Color Shades Generator
Generate a 10-step shade palette (50–900) from any base color using HSL lightness scaling — just like Tailwind CSS.
Color Gradient Palette Generator
Generate smooth RGB gradients between two colors with 3–20 steps. Copy HEX swatches, CSS linear-gradient, or a Tailwind array.
Text Tools
Case converters, formatters, and text utilities.
Binary to Text Converter
Convert text to binary, hex, and Base64 — or decode binary, hex, and Base64 back to plain text.
Text Case Converter — UPPER, lower, Title, camelCase
Convert text to sentence case, lower case, UPPER CASE, Title Case, camelCase, snake_case, and more.
Duplicate Word Finder Online
Find and highlight duplicate words in your text. Sort by frequency and copy with highlights.
Word & Sentence Counter Online
Count sentences, words, characters, paragraphs, and estimate reading time instantly.
Free Online Notepad — Auto-Save
A simple notepad that auto-saves to your browser. No account needed, works offline.
Free APA Citation Generator — 7th Edition
Generate properly formatted APA 7th edition citations for journals, books, and websites. Free, no account needed.
Phonetic Spelling Tool Online
Convert English text to a phonetic spelling guide to help with pronunciation.
Roman Numeral Converter Online — Numbers & Dates
Convert numbers and dates to Roman numerals, or decode Roman numerals back to numbers.
Word Cloud Generator Online
Generate a visual word cloud from your text. More frequent words appear larger.
Em Dash Remover — Replace Dashes Online
Remove or replace em dashes and other special dashes from your text.
Remove Line Breaks Online
Remove unwanted line breaks and clean up paragraphs in your text.
Remove Characters from Text Online
Remove specific characters or strings from your text with case-sensitive options.
Remove Underscores from Text
Replace underscores with spaces, hyphens, or remove them entirely.
Reverse Text Generator Online
Reverse text character-by-character, word-by-word, or line-by-line.
Remove Extra Whitespace Online
Trim, collapse, or strip all whitespace from your text.
Repeat Text Generator Online
Repeat any text a specified number of times with a custom separator.
Remove HTML Tags Online — Strip HTML & Markdown
Remove HTML tags and strip Markdown formatting to get clean plain text instantly.
Remove Duplicate Lines Online
Remove duplicate lines from text, keeping only unique lines.
Sort Words Alphabetically Online
Sort words or lines alphabetically, ascending or descending.
Find & Replace Text Tool Online
Find and replace text with support for regex and case-sensitive matching.
Word Frequency Counter Online
Count how many times each word appears in your text, sorted by frequency.
NATO Alphabet Translator Online
Translate text into the NATO phonetic alphabet — Alpha, Bravo, Charlie…
Pig Latin Translator Online
Translate English text into Pig Latin for fun.
Plain Text Converter — Strip HTML & Markdown
Strip HTML, Markdown, and special formatting to get clean plain text.
Readability Score Calculator
Analyse text readability with Flesch, Gunning Fog, Flesch-Kincaid, and Coleman-Liau scores.
Text Summarizer
Extractive text summarization without AI — scores sentences by TF-IDF frequency and position. Adjust summary to 1–10 sentences.
Number to Words Converter
Convert any integer up to 999 quadrillion to English words — cardinal, ordinal, and currency forms.
Markdown Table Generator
Build Markdown tables visually. Edit headers and cells, add rows and columns, set alignment, and copy Markdown or HTML.
Emoji Picker
Browse and search over 200 emojis across 8 categories. Click to copy. Supports skin tones and tracks recently used.
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text by word count, sentences, or paragraphs.
Markdown Live Preview
Write Markdown and see the rendered HTML preview in real time. Includes a toolbar with formatting shortcuts and word count.
Morse Code Translator
Translate text to Morse code or decode Morse code back to text. Covers the full International Morse Code character set.
URL Slug Generator
Convert any text to a URL-friendly slug. Handles accented characters and formats text for clean SEO-friendly URLs.
Text to Binary Converter
Convert text to binary (0s and 1s) or decode binary back to text. Uses UTF-8 encoding for correct Unicode support.
Random Generators
Generate random numbers, passwords, UUIDs, dates, and more.
Password Strength Checker
Test your password strength instantly. See entropy bits, estimated crack time, and a security checklist — all in your browser.
Pomodoro Timer
A clean Pomodoro timer with configurable work and break durations, session counter, SVG progress ring, and an audio bell.
Dice Roller
Roll d4, d6, d8, d10, d12, d20, or d100 dice. Roll up to 20 dice at once. Shows animated results and history.
Random Picker Online — Decision Maker & Choice Generator
Can't decide? Enter your options and let the random picker choose for you.
Random Date Generator Online
Generate random dates within a specified range in multiple date formats.
Random IP Address Generator — IPv4 & IPv6
Generate random IPv4 or IPv6 addresses for testing and development.
Random Letter Generator Online
Generate random letters with options for case, repeats, exclusions, and separators.
Random Month Generator Online
Generate random months in full name, abbreviated, or numeric format.
Random Number Generator Online
Generate random numbers in a custom range with optional decimals and sorting.
Password Generator Online — Strong & Secure
Generate cryptographically secure passwords with custom length and character rules.
UUID Generator Online — v4, Free
Generate RFC 4122 compliant UUID v4 strings for databases and applications. Free, instant, no signup.
Random Name Generator
Generate random first names, last names, or full names from multiple cultures and genders. Generate up to 100 names at once.
Random Word Generator
Generate random English words filtered by part of speech, length, and starting letter.
Random Emoji Generator
Generate random emojis by category. Click any emoji to copy it, or copy all at once.
CSS Tools
Visual generators for CSS grids, animations, filters, and effects.
CSS Gradient Text Generator
Create gradient text effects online. Pick 2–4 colors, choose direction, and copy the ready-to-use CSS background-clip code.
CSS Variables Generator
Build a complete CSS custom properties :root block for colors, spacing, typography, and border radius. Copy instantly.
CSS Grid Generator
Build CSS grid layouts visually. Configure columns, rows, gaps, drag to create spans, and copy the generated CSS.
CSS Border Radius Generator
Visually generate border-radius CSS with independent corner controls and live preview.
CSS Text Shadow Generator
Create layered CSS text-shadow effects with live preview and one-click copy.
CSS Filter Generator
Generate CSS filter effects — blur, brightness, contrast, hue-rotate, saturate, sepia, and more — with a live image preview.
CSS Clip Path Generator
Generate CSS clip-path shapes interactively — polygons, circles, and ellipses — with a live preview. Drag control points.
CSS Animation Generator
Build CSS @keyframe animations visually with timing, easing, delay, and iteration controls.
CSS Flexbox Generator
Visual flexbox playground — configure flex-direction, flex-wrap, justify-content, align-items, and per-item properties.
CSS Box Shadow Generator
Build CSS box shadows visually with sliders. Add multiple layers, control blur, spread, color, and opacity.
CSS Gradient Generator
Build beautiful CSS linear and radial gradients visually. Customize colors, stops, and angle — copy the ready CSS.
Developer Tools
Encoders, formatters, and utilities for everyday development tasks.
SQL Formatter
Prettify or minify SQL queries with automatic keyword uppercasing, clause indentation, and newlines.
JSON to TypeScript
Convert JSON to TypeScript interface or type alias definitions recursively. Handles nested objects, arrays, and null values.
.gitignore Generator
Pick your tech stack and get a ready-made .gitignore file with all standard exclusions per technology.
String Escape Tool
Escape or unescape strings for JavaScript, JSON, HTML, Regex, URL, and CSS in one click.
HTML Entity Encoder
Encode or decode HTML entities — convert special characters to & references and back.
JWT Decoder
Decode and inspect JSON Web Tokens — header, payload, and expiry — without a secret.
Cron Expression Explainer
Parse and explain cron expressions in plain English. Shows next 5 run times.
HTML Formatter
Prettify or minify HTML with configurable indentation and syntax-highlighted output. Nothing sent to any server.
Byte Converter
Convert between bytes, KB, MB, GB, TB and binary (KiB, MiB, GiB) equivalents. Covers both decimal (SI) and binary (IEC) prefixes.
XML Formatter
Prettify or minify XML with configurable indentation and syntax highlighting.
Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 strings back to text. Handles UTF-8 and Unicode — instant, no server.
Diff Checker
Compare two pieces of text and see the differences highlighted. Line-by-line diff with added/removed lines clearly marked.
JSON Formatter & Validator
Format, pretty-print, and validate JSON with customizable indentation and key sorting. Instant feedback on syntax errors.
JSON to CSV Converter
Convert a JSON array to CSV format. Customizable delimiter, header row, and field quoting. Download as .csv.
Number Base Converter
Convert numbers between binary (base 2), octal (8), decimal (10), and hexadecimal (16) instantly.
Regex Tester
Test and debug regular expressions against sample text. See all matches, capture groups, and flags explained.
SHA Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 cryptographic hashes from text or files. Computed locally in your browser.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and times, or convert any date to its Unix timestamp.
URL Encoder & Decoder
Percent-encode URLs and query strings, or decode URL-encoded strings back to readable text.
Collaboration
Real-time tools for teams.
PDF Tools
Merge, split, rotate, reorder, watermark, and convert PDF files — all processed locally in your browser.
PDF Merge — Combine PDF Files Online
Combine multiple PDF files into one. Upload, reorder, and merge instantly in your browser. No upload to any server.
PDF Split — Extract Pages Online
Extract a page range or split a PDF into individual pages. Download as a single PDF or a ZIP of separate pages.
PDF to Images Converter Online — PNG & JPEG
Convert PDF pages to PNG or JPEG images at up to 216 DPI. Download individually or as a ZIP archive.
Images to PDF Converter Online
Combine JPEG, PNG, WebP, or GIF images into a single PDF. Choose page size and margins. No upload to any server.
Rotate PDF Online — Fix Page Orientation
Rotate individual or all pages in a PDF — 90°, 180°, or 270°. Download the corrected PDF. No upload to any server.
Rearrange PDF Pages Online — Drag and Drop
Drag and drop PDF page thumbnails to rearrange or reorder pages in any order. Download the result instantly.
Add Page Numbers to PDF Online
Stamp page numbers onto every page of a PDF. Choose position, font size, format, and starting number.
Add Watermark to PDF Online
Add a diagonal text watermark to every page of a PDF. Control text, opacity, font size, and color.
PDF Metadata Editor Online — Edit PDF Properties
View and edit PDF properties — title, author, subject, keywords, and creator. Download the updated PDF instantly.
Extract Text from PDF Online — PDF to Text
Extract all text content from a PDF file and convert to plain text. Copy to clipboard or download as .txt. No server upload.
PDF Compressor Online — Reduce PDF File Size
Reduce PDF file size and make PDF smaller by rasterizing pages to JPEG at configurable DPI and quality. Shows before/after size. No server upload.
More tools coming soon — CSS generators, unit converters, and more.