Search Free Online Tools

QR Code Generator

Generate QR Codes for URLs, WiFi, vCards, or text. Download as PNG.

Word Counter

Count characters, words, lines, and paragraphs in real time.

Image Compressor

Compress JPG/PNG/WebP/HEIC in-browser. Batch download as ZIP.

Image Resizer

Resize images with preset sizes for Instagram, YouTube, or custom dimensions.

Age Calculator

Calculate exact age, next birthday countdown, and Chinese zodiac sign.

Pet Age Calculator

Calculate cat/dog human-equivalent age with AAHA 2020 formula (not the outdated × 7).

Time Zone Converter

Convert between time zones globally with a built-in meeting planner.

TDEE Calorie Calculator

Calculate daily calorie needs with Mifflin-St Jeor formula. Includes weight goals.

AI Token Counter

Free token counter & API cost calculator for ChatGPT, Claude, Gemini. No login.

JSON Formatter

Format, minify, validate JSON instantly with error line numbers and dark mode.

Currency Converter

Real-time exchange rates for 30+ currencies including USD, EUR, JPY, GBP.

Base64 Encoder / Decoder

Convert text or images to and from Base64. Runs in your browser.

URL Encoder / Decoder

Encode or decode URLs containing spaces, special characters, or Unicode.

Unix Timestamp Converter

Convert between Unix timestamps and human-readable dates with multi-timezone support.

UUID Generator

Generate UUID v4 identifiers in batches with one click.

Hash Generator (MD5/SHA)

Compute MD5, SHA-1, SHA-256, SHA-512 hashes for any text.

Strong Password Generator

Generate strong passwords with custom length, character types, and strength analysis.

Color Picker

Convert between HEX, RGB, HSL color formats with palette suggestions.

Percentage Calculator

Calculate X% of Y, percentage change, and other common percentage operations.

Countdown to Date

Live countdown timer to any future or past date.

Random Picker

Randomly pick from a list of options. Great for decisions.

Unit Converter

Convert length, weight, temperature, volume, area, speed across 80+ units.

JWT Decoder

Decode JSON Web Tokens to view header, payload, and expiry status.

Regex Tester

Test regular expressions with live highlighting and flag controls.

Markdown Editor

Live Markdown preview with HTML output. Supports GFM (tables, code, task lists).

Text Diff

Compare two texts side-by-side. Highlight additions, deletions, changes.

CSV ⇄ JSON

Convert CSV to JSON and vice versa, with custom delimiters and header handling.

Case Converter

Convert text to UPPER, lower, Title, camelCase, PascalCase, snake_case, kebab-case.

BMI Calculator

Calculate BMI and health category from height and weight.

Roman Numeral Converter

Convert between Arabic numbers and Roman numerals (1 ↔ I, 4 ↔ IV).

Bill Splitter

Split restaurant bills with tip calculation. Even or uneven splits.

Pomodoro Timer

Focus timer using the 25/5 Pomodoro technique.

Lorem Ipsum Generator

Generate placeholder text in Latin or Chinese, by words/sentences/paragraphs.

YAML ⇄ JSON

Convert YAML to JSON and vice versa. Great for GitHub Actions, Docker Compose.

Fuel Cost Calculator

Calculate fuel costs from MPG/efficiency, price, and distance. Includes EV mode.

Open Graph Preview

Preview how your website appears when shared on Facebook, Twitter, LINE.

AI Prompt Library

Curated AI prompts for ChatGPT, Claude, Gemini. 100+ templates with categories.

AI Prompt Optimizer

Auto-structure casual prompts with role, task, format. Boost AI response quality.

Animated GIF Maker

Combine multiple images into an animated GIF. Adjust frame delay and loop.

Image to PDF

Combine multiple images into a single PDF with page settings.

XML Formatter

Format, minify, and validate XML. Handles RSS, SOAP, SVG.

Background Remover

Two modes: AI human segmentation (MediaPipe) or solid-color chroma-key removal.

Weather Forecast

Live weather, 7-day forecast, and hourly temperature chart. Global cities. Data from Open-Meteo.

Scientific Calculator

Full scientific calculator with trig, log, exp, memory and history.

HEIC to JPG

Convert iPhone HEIC photos to universal JPG or PNG in your browser.

PDF Merge

Combine multiple PDFs into one. Drag to reorder. Browser-based, no upload.

PDF Split

Split a multi-page PDF into individual pages or custom ranges.

QR Code Scanner

Scan QR codes with your camera or upload an image to decode.

Speech to Text

Live speech recognition with microphone. Supports English, Chinese, Japanese, Korean.

Emoji Search

Search 3000+ emojis by name, browse by category, copy with one click.

Social Media Character Limits

Check post length against Twitter, IG, FB, TikTok, LinkedIn limits in real time.

GPA Calculator

US 4.0 scale GPA with credit weighting.

Final Grade Calculator

Calculate what you need on the final exam to reach a target grade.

Programmer Calculator (Hex/Bin/Oct)

Convert between DEC, HEX, BIN, OCT. Includes bitwise ops (AND/OR/XOR).

IP Lookup

See your public IP, location, ISP, timezone. Look up any IP address.

PDF Compressor

Two modes: preserve-text (lossless cleanup) or rasterize-to-JPEG (maximum). Browser-based.

PDF to Image

Convert each PDF page to PNG or JPG. Multi-page output as ZIP. Browser-based.

PDF Page Manager

Rotate, delete, and reorder PDF pages in your browser.

Add Page Numbers to PDF

Add page numbers to a PDF with custom position, size, and start number.

PDF Watermark

Add text watermarks such as CONFIDENTIAL, DRAFT, or a company name.

Sign PDF

Draw a handwritten signature and place it onto a PDF page.

Image Format Converter

Convert JPG, PNG, WebP, AVIF, BMP, static GIF, and SVG to raster formats. Batch supported. Browser-based.

Online Notepad

Auto-saves to your browser. No login. Markdown supported.

Spinner Wheel

Random picker wheel. Great for classrooms, giveaways, decisions.

Image Crop

Crop images online with preset ratios and JPG/PNG/WebP output.

YouTube Thumbnail Downloader

Paste a YouTube URL to download the original high-res thumbnail.

EXIF Remover

Remove GPS, camera model, date, and other photo metadata.

Image Blur / Redact

Blur, pixelate, or black out sensitive information in screenshots and photos.

llms.txt Generator

Create an llms.txt file for AI search and answer engines.

AI Crawler Checker

Check whether robots.txt and llms.txt are friendly to AI search crawlers.

Schema Markup Generator

Generate WebSite, Organization, WebApplication, and Article JSON-LD.

FAQ Schema Generator

Convert questions and answers into FAQPage JSON-LD.

OCR (Image to Text)

Extract text from images. Chinese / English / Japanese / Korean. Browser-based.

CSS Gradient Generator

Live CSS gradient generator. Linear / radial / conic. Copy CSS instantly.

Favicon Generator

One image → all favicon sizes (16-512) + HTML tags. Browser-based.

JSON to TypeScript Interface

Paste JSON, get TypeScript interfaces / types. Nested, optional, unions.

Color Palette Extractor

Extract dominant colors from any image. 5 / 8 / 12 color palettes.

Image Watermark

Add text or image watermarks to your photos. Browser-based.

Slug Generator

Turn any title into a URL-friendly slug. SEO essential.

Decision Maker (Yes/No, Dice, Coin)

Can't decide? Let the tool decide. Yes/No, coin flip, dice roll, number picker.

Stopwatch / Timer

Online stopwatch with millisecond precision and lap recording.

Text-to-Speech (TTS)

Type text, hear it spoken. Multi-language, adjustable rate and pitch.

Chinese Zodiac & Western Zodiac

Enter your birthday to get your Chinese zodiac animal and Western zodiac sign.

PDF Encrypt / Decrypt

Add a password to a PDF, or remove the password if you know it. Browser-based.

CSV / Excel Online Preview

Open and view CSV, TSV, and Excel files in your browser. No Office needed.

Fake Chat Generator

Create iMessage / WhatsApp / LINE-style chat screenshots for memes and content.

Word Unscrambler

Enter scrambled letters, get all valid English words. Scrabble & Words With Friends helper.

Anagram Solver

Enter a word or letters to find all anagrams (rearrangements that are valid words).

Crossword Solver

Enter a pattern like "C?T" or "_AT_" with missing letters to find matching words.

Rhyme Finder

Find words that rhyme with any word. Great for songwriting, poetry, raps.

Random Word Generator

Generate random English words. Customize length, starting letter, count.

Loan Calculator

Free online loan calculator for quick everyday calculations and image tasks.

Compound Interest Calculator

Free online compound interest calculator for quick everyday calculations and image tasks.

Due Date Calculator

Free online due date calculator for quick everyday calculations and image tasks.

Placeholder Image Generator

Free online placeholder image generator for quick everyday calculations and image tasks.

Calorie Calculator

Free online calorie calculator for quick everyday calculations and image tasks.

Age in Days Calculator

Free online age in days calculator for quick everyday calculations and image tasks.

Hourly to Salary Calculator

Free online hourly to salary calculator for quick everyday calculations and image tasks.

Salary to Hourly Calculator

Free online salary to hourly calculator for quick everyday calculations and image tasks.

Meme Generator

Free online meme generator for quick everyday calculations and image tasks.

Add Text to Image

Free online add text to image for quick everyday calculations and image tasks.

Number to Words

Free online number to words for quick everyday calculations and image tasks.

Aspect Ratio Calculator

Free online aspect ratio calculator for quick everyday calculations and image tasks.

Birthday Countdown

Free online birthday countdown for quick everyday calculations and image tasks.

Time Card Calculator

Free online time card calculator for quick everyday calculations and image tasks.

Tip Calculator

Free online tip calculator for quick everyday calculations and image tasks.

Discount Calculator

Free online discount calculator for quick everyday calculations and image tasks.

Speed Distance Time Calculator

Free online speed distance time calculator for quick everyday calculations and image tasks.

Cooking Conversion Calculator

Free online cooking conversion calculator for quick everyday calculations and image tasks.

Date Calculator

Add or subtract days from any date and get the exact result date.

Date Difference Calculator

Calculate the number of days and weeks between two dates.

Business Days Calculator

Count weekdays between two dates, excluding Saturday and Sunday.

Hours Calculator

Calculate work hours between two times with optional break minutes.

Time Duration Calculator

Find the total hours and days between two date/time values.

BMR Calculator

Estimate basal metabolic rate using height, weight, age, and gender.

Macro Calculator

Split daily calories into protein, carbs, and fat targets.

Body Fat Calculator

Estimate body fat percentage with the US Navy tape method.

Ovulation Calculator

Estimate ovulation day and fertile window from your cycle.

Period Calculator

Estimate your next period start and expected period range.

Concrete Calculator

Estimate concrete volume for slabs and simple rectangular pours.

Paint Calculator

Estimate how much paint you need for a rectangular room.

HTML Formatter

Format compact HTML into readable indented markup.

SQL Formatter

Format SQL queries with line breaks and uppercase keywords.

PII Masking Tool

Mask names, phone numbers, IDs, emails, and addresses before sharing text.