Free Online Tools for
Everyone: Fast & Private

Word Counter

Real-time count of words, characters, sentences, paragraphs, and reading time.

Case Converter

Convert text to uppercase, lowercase, title case, camelCase, snake_case, and more.

Remove Duplicate Lines

Paste text and instantly remove duplicate lines, with options for case sensitivity.

Text Reverser

Reverse your text character-by-character or word-by-word instantly.

Slug Generator

Convert any text into a clean URL-friendly slug with your choice of separator.

Whitespace Cleaner

Remove extra spaces, trim lines, delete blank lines, flatten paragraphs, and replace tabs, all with live preview.

Text Diff

Compare two texts and highlight added, removed, and unchanged content at word or character level.

Sort Lines

Sort any list of text lines alphabetically, numerically, by length or complexity. Remove duplicates and customize sorting options instantly.

Full-width Converter

Convert ASCII characters to Unicode full-width (ａｂｃ１２３) and back, useful for styled text.

Binary ↔ Text

Convert text to binary (0s and 1s) and back in both directions, with live validation.

Morse Code Converter

Convert text to Morse code and back, with audio playback and adjustable speed.

Split Text

Split any text into chunks by line, sentence, word count, character count, or a custom delimiter.

Replace Text

Apply multiple find-and-replace rules simultaneously, with regex and whole-word support.

Text to ASCII Codes

Convert text to ASCII decimal, hex, binary, or octal codes instantly. See the ASCII value of every character.

Shuffle Lines

Randomly shuffle the lines of any text instantly. Perfect for randomizing lists, quiz questions, or dataset rows.

Text Centering

Center, left-align, or right-align text within a fixed width. Perfect for formatting CLI output, README banners, and plain text documents.

Text Repeater

Repeat any word, phrase or string multiple times with custom separators. Generate repeated text instantly.

Line Numbering

Add line numbers to any text with custom start number, step, separator and zero-padding options.

Emoji Picker

Browse, search and copy emojis easily. Get the Unicode code point, HTML entity and CSS values for any emoji instantly.

Text Corruptor

Add realistic random errors and typos to any text. Control error intensity and types to simulate human mistakes, test spell checkers, or create corrupted text effects.

E-Mail Extractor

Pull every email address out of pasted text, logs, or documents. Deduplicate, sort, and export the list as .txt or .csv, entirely in your browser.

Text Justifier

Wrap text to a set line width and justify it so every line (except the last) reaches both edges evenly, the way printed columns and typeset paragraphs look.

URL Extractor

Automatically extract every URL from pasted text, logs, or documents. Deduplicate, sort, and export the list as .txt or .csv, entirely in your browser.

Number to Words Converter

Convert numbers into written-out English words and back again: supports negatives, decimals, and values up to the decillions, entirely in your browser.

Roman Numeral Converter

Convert numbers to Roman numerals and Roman numerals back to numbers, with instant validation that flags malformed input as you type, entirely in your browser.

Text Representation

Turn any text into an escaped, quoted string representation, exactly like Python's repr() function, ready to paste into source code or a log line.

Whitespace Visualizer

Reveal every space, tab, newline, carriage return, and other whitespace character hiding in your text without changing a single character of the original.

Base64 Encoder/Decoder

Encode text to Base64 or decode Base64 back to plain text in real-time.

JSON Formatter

Paste JSON to auto-format, validate, and spot errors with inline highlighting.

URL Encoder/Decoder

Encode or decode URLs and query strings in real-time, both directions.

Regex Tester

Test and debug regular expressions with live match highlighting, flag controls, and a quick-reference cheat sheet.

JWT Decoder

Decode and inspect JSON Web Tokens (header, payload, signature, expiry) entirely in your browser.

Color Converter

Convert colors between HEX, RGB, HSL, and RGBA with a live swatch, color picker, alpha slider, and recent color history.

Cron Explainer

Decode any cron expression into plain English, preview the next 5 run times, and browse common schedules.

Random IP Generator

Generate random IPv4 and IPv6 addresses for testing, development, and network configuration mockups.

URL Parser

Break down any URL into its individual components: protocol, host, port, path, query parameters, hash, and more.

Timestamp Converter

Convert Unix timestamps to human-readable dates and back. Supports seconds, milliseconds, ISO 8601, and multiple timezones.

JSON to Table

Convert any JSON array into a clean, sortable, and searchable HTML table. Export as CSV or Markdown instantly.

Chmod Calculator

Calculate Linux file permissions visually: toggle read, write, and execute for owner, group, and others to get the octal code, symbolic notation, and chmod command.

Document Scanner

Turn a phone photo of a document into a clean, straightened scan: rotate, fix the perspective, flatten the background, boost contrast, and download it as a PDF, all in your browser.

Image Compressor

Shrink a JPEG, PNG, or WebP image's file size with a live quality slider: see the before/after size and preview instantly, entirely in your browser.

Image Format Converter

Convert JPEG, PNG, WebP, GIF, and other images between formats: batch multiple files at once, entirely in your browser, with nothing ever uploaded.

Image Resizer

Resize a JPEG, PNG, or WebP image to an exact width and height with an aspect-ratio lock and a live preview, entirely in your browser.

Favicon Generator

Turn a logo or image into a complete favicon set: every standard size packaged as a downloadable zip, plus ready-to-paste HTML tags, entirely in your browser.

Image Color Palette Extractor

Pull the dominant colors out of any photo or graphic as a set of HEX/RGB swatches you can copy, entirely in your browser.

Image Color Picker

Click anywhere on an uploaded image to read that exact pixel's HEX and RGB color, with a magnified cursor preview and a running pick history, entirely in your browser.

Image Filter Editor

Adjust brightness, contrast, saturation, blur, sepia, grayscale, and invert with live sliders, then download the filtered image, entirely in your browser.

Image Watermarker

Stamp a text watermark onto a photo: customize text, position, size, color, opacity, and rotation, with a live preview, all in your browser.

Image Rotator & Flipper

Rotate a photo in 90° steps and flip it horizontally or vertically, with a live preview, entirely in your browser.

QR Code Scanner

Decode a QR code from an uploaded photo or screenshot and read the text, link, or contact info it contains, entirely in your browser.

Image Collage Maker

Arrange multiple photos into a fixed grid layout with adjustable spacing and combine them into one downloadable image, entirely in your browser.

Lorem Ipsum Generator

Generate paragraphs, sentences, or words of placeholder text for mockups and designs.

Random Number Generator

Generate random numbers with custom ranges, quantity, and sorting options for testing and development.

QR Code Generator

Generate and download QR codes for any URL or text. Customize size, colors, and error correction level.

Color Palette Generator

Generate beautiful color palettes from any base color. Monochromatic, complementary, triadic, analogous and more. Export as CSS, Tailwind, or JSON.

Random Color Generator

Generate random colors from the full color wheel or from curated palettes like pastels, neons, primary colors and more. Pick 1 to 20 colors at once.

Invoice Generator

Create professional invoices with your company details, custom line items, tax, and totals, then download a ready-to-send PDF, entirely in your browser.

ULID Generator

Generate random, lexicographically sortable ULIDs, a modern alternative to UUIDs that sort by creation time. Batch generate and decode existing ULIDs, entirely in your browser.

UUID Generator

Generate random UUIDs (v4) or timestamp-ordered UUIDs (v7) in bulk. Customize case and hyphens, and decode an existing UUID's version and embedded timestamp.

Dice Roller

Roll virtual dice (d4 through d100) with an animated roll, a running history log, and a simple coin-flip mode, all in your browser.

Random Group Generator

Paste a list of names and instantly split them into fair, randomly shuffled groups, either by number of groups or by group size, entirely in your browser.

vCard QR Code Generator

Turn a name, phone, email, and other contact details into a scannable QR code that saves straight to a phone's contacts app. Runs entirely in your browser.

Commit Message Generator

Build properly formatted Conventional Commits messages from a type, scope, description, body, and breaking-change footer. Runs entirely in your browser.

License Generator

Generate the exact text of a MIT, Apache 2.0, GPL 3.0, BSD 3-Clause, or ISC license with your name and year filled in. Runs entirely in your browser.

.gitignore Generator

Build a merged, deduped .gitignore by checking off any combination of language, editor, and OS templates (Node, Python, VS Code, macOS, and more).

.htaccess Generator

Assemble a working Apache .htaccess file by checking off common recipes: force HTTPS, www redirects, gzip compression, browser caching, and a custom 404 page.

robots.txt Generator

Build a robots.txt file with per-bot allow/disallow rules, a sitemap URL, and one-click presets for Googlebot, GPTBot, and other common crawlers.

Meta Tag Generator

Build title, description, Open Graph, and Twitter Card meta tags from a simple form, with a live preview of how the link looks shared on X, Facebook, and Slack.

Fake Data Generator

Generate rows of realistic-looking synthetic test data (names, emails, phone numbers, addresses, companies) as a table, JSON, or CSV.

Privacy Link Cleaner

Remove tracking parameters and UTM codes from URLs to protect your privacy and get clean, shareable links.

Sensitive Data Scrubber

Paste logs, emails or documents and automatically redact sensitive information like emails, phone numbers, IP addresses and credit cards before sharing.

Manual Text Redactor

Click or drag across any word to black it out by hand, then copy or download the redacted text, useful for sensitive content regex-based scrubbers miss, like names.

Merge PDF

Combine multiple PDF files into a single document. Drag to reorder, then merge and download; no upload, everything runs in your browser.

Extract PDF Pages

Pull a specific page or range of pages out of a PDF and save them as a new, standalone file; no upload, everything runs in your browser.

Add Watermark to PDF

Stamp a text watermark across every page of a PDF: customize text, position, size, color, opacity, and rotation, with a live preview, all in your browser.

Organize PDF

Reorder, duplicate, and remove pages with a visual page-by-page preview, then save as a new PDF. No upload; everything runs in your browser.

Add Header & Footer to PDF

Add custom text to the top and bottom of every page: set header and footer text, alignment, font size, and color, with a live preview, all in your browser.

Add Page Numbers to PDF

Number every page of a PDF: choose top, bottom, or both, left/center/right alignment, font size and color, with the option to skip the first N pages. Live preview, all in your browser.

PDF Compressor

Shrink a PDF's file size with one simple slider, where each level says exactly what it does and what it's best for, and download a smaller file, all in your browser.

Git Cheat Sheet

The Git commands developers actually use daily, organized by workflow, covering branching, rebasing, undoing mistakes, and recovery, with real examples and a searchable quick reference.

Regex Cheat Sheet

The regex syntax developers actually reach for, including anchors, character classes, groups, and lookaround, with real patterns, common mistakes, and a searchable quick reference.

Prompt Engineering Cheat Sheet

The prompt patterns that actually change LLM output, including anatomy, few-shot, chain-of-thought, and structured formatting, with real examples, pitfalls, and a searchable quick reference.

Linux Commands Cheat Sheet

The Linux commands developers actually use daily, including navigation, permissions, piping, processes, and networking, with real examples, common mistakes, and a searchable quick reference.

Docker Cheat Sheet

The Docker commands developers actually use daily, including running containers, Dockerfiles, volumes, Compose, and cleanup, with real examples, common mistakes, and a searchable quick reference.

Kubernetes Cheat Sheet

The kubectl commands developers actually use daily, including pods, deployments, services, debugging, and rollouts, with real examples, common mistakes, and a searchable quick reference.

Markdown Cheat Sheet

The Markdown syntax developers actually use daily, including headings, lists, links, tables, and code blocks, with real examples, common mistakes, and a searchable quick reference.

Terraform Cheat Sheet

The Terraform commands and HCL patterns developers actually use daily, covering resources, variables, state, and modules, with real examples, common mistakes, and a searchable quick reference.

Percentage Calculator

Find X% of a number, work out what percent one number is of another, or calculate the percent change between two values, instantly, in your browser.

Tip Calculator

Calculate a tip and split the total evenly between any number of people, with a slider, quick-pick percentages, and a live per-person breakdown, entirely in your browser.

Discount Calculator

Work out a sale price and how much you'll save from an original price and discount percentage, or reverse-engineer the original price from a sale price, instantly, in your browser.

Sales Tax Calculator

Add sales tax onto a price, or back the pre-tax price out of a tax-included total; enter a price and tax rate and get both figures instantly, in your browser.

Simple Interest Calculator

Work out interest earned (or owed) and the final amount from a principal, annual interest rate, and time in years, using I = P × r × t, instantly, in your browser.

Compound Interest Calculator

Work out how a principal grows with compound interest at a chosen compounding frequency, with a year-by-year growth table showing exactly how the balance builds up.

Savings Goal Calculator

Work out the monthly contribution needed to hit a savings target by a deadline, or how long it'll take at a fixed monthly amount, with interest optional, instantly, in your browser.

Loan Calculator

Calculate a loan's fixed monthly payment from its principal, annual interest rate, and term, with a full month-by-month amortization schedule and a principal-vs-interest chart.

ROI Calculator

Work out total return on investment and annualized return (CAGR) from an initial investment, final value, and holding period, instantly, in your browser.

Break-Even Calculator

Work out how many units you need to sell, and how much revenue that takes, to cover your fixed costs, instantly, in your browser.