Online Tools
A collection of useful web tools for developers, designers, marketers, and PMs. Free to use.
PDF Editor
100% free online PDF editor — no login or signup needed. Edit PDF text & images, merge PDFs, delete or reorder pages, add signatures, and export PDF for free directly in your browser.
QR Code Generator
Free online QR code generator. Easily convert URL and text to QR code. No installation, no signup required.
Password Generator
Free online password generator. Create strong and secure passwords easily. No installation, no data stored.
UUID Generator
Free online UUID generator. Easily generate and copy UUID v4. Free tool for developers.
Lorem Ipsum Generator
Free online Lorem Ipsum generator. Easily generate dummy text. Free tool for designers and developers.
Color Palette Generator
Free online color palette generator. Easily create harmonious color schemes. Free tool for designers.
Hash Generator
Free online hash generator. Easily generate MD5, SHA-1, SHA-256 hashes. Free tool for developers.
Color Converter
Free online color converter. Easily convert HEX, RGB, HSL color codes. Free tool for designers.
Unit Converter
Free online unit converter. Easily convert length, weight, temperature and more. No installation, free.
Base64 Encoder/Decoder
Free online Base64 encoder/decoder. Easily encode and decode Base64. Free tool for developers.
Image Format Converter
Free online image format converter. Easily convert between JPEG, PNG, WebP. No installation, free.
Character Counter
Free online character counter. Easily count characters, words, and lines. No installation, free.
Markdown Preview
Free online markdown preview. Preview markdown documents in real-time. Free tool for developers.
Text Diff Tool
Free online text diff tool. Easily compare differences between two texts. Free tool for developers.
JSON Formatter
Free online JSON formatter. Easily format and validate JSON. Supports indentation, minification, and syntax checking.
Regex Tester
Free online regex tester. Easily test regular expressions and check matches. Free tool for developers.
URL Encoder/Decoder
Free online URL encoder/decoder. Easily encode and decode URL strings. Free tool for developers.
Link Shortener
Free online link shortener. Turn long URLs into short lacorte.dev/s/ links. No account required.
JWT Decoder
Free online JWT decoder. Easily decode and analyze JWT tokens. Free tool for developers.
Bcrypt Hash & Verify
Free online bcrypt hasher and verifier. Hash passwords and check bcrypt hashes in your browser. Free tool for developers.
What Is My IP
See your public IP address instantly. Works behind Cloudflare. Free, no signup.
Cron Expression Generator
Free online Cron expression generator. Easily generate and explain cron expressions. Free tool for developers.
Unix Timestamp Converter
Free online Unix timestamp converter. Easily convert between timestamp and date. Free tool for developers.
LLM Cost Calculator
Free online LLM cost calculator. Easily calculate API costs for ChatGPT, Claude and other AI models.
CSS Gradient Generator
Free online CSS gradient generator. Visually create CSS gradients easily. Free tool for designers.
CSS Box Shadow Generator
Free online CSS box-shadow generator. Visually create shadow effects easily. Free tool for designers.
Image Resizer
Free online image resizer with live crop and preset sizes for Slack, YouTube thumbnails, iPhone App Store, and more.
EXIF Viewer
Free online EXIF viewer. Easily view photo shooting info, GPS location, and camera settings.
Background Remover
Free online background remover. Automatically remove image background with AI. No installation, free.
Image Metadata Viewer
Free online image metadata viewer. Easily view photo device, GPS location, and camera settings.
App Store Screenshot Resizer
Free online App Store screenshot resizer. Simple & fast way to crop and resize images for iPhone and iPad App Store requirements. No installation, browser-based.
UTM Link Builder
Free online UTM link builder. Easily create UTM links for campaign tracking. Free tool for marketers.
Timer / Stopwatch
Free online timer and stopwatch. Easily measure time. No installation, free.
Pomodoro Timer
Free online Pomodoro timer. Boost productivity with Pomodoro technique. No installation, free.
World Clock
Free online world clock. Easily check and convert world time zones. No installation, free.
Percent Calculator
Free online percent calculator. Easily calculate percentages, rates, and discounts. No installation, free.
Discount Calculator
Free online discount calculator. Easily calculate discount price and rate. No installation, free.
BMI Calculator
Free online BMI calculator. Easily calculate BMI and ideal weight. No installation, free.
Age Calculator
Free online age calculator. Easily calculate age, zodiac signs. No installation, free.
D-Day Calculator
Free online D-Day calculator. Easily calculate days until a date. No installation, free.
Split Bill Calculator
Free online split bill calculator. Easily split bills and calculate payments. No installation, free.
Coin Flip
Free online coin flip. Make decisions with a fair coin toss. No installation, free.
Dice Roller
Free online dice roller. Roll various dice from D4 to D100. No installation, free.
Anonymous Chat
Free anonymous 1:1 real-time chat. Secure P2P connection, nothing stored on servers. No signup required.
ℹ️ Information
- • All tools run in your browser. No data is sent to any server.
- • Free to use. No registration required.
- • Works on both mobile and desktop.
- • Available in English and Brazilian Portuguese.