Lolman Tools

Convert a sequence of ASCII character codes back into text.

Decode from Base64 format with various advanced options. Fast, secure, and completely browser-based Base64 decoding.

Encode text to Base64 format with various advanced options. Fast, secure, and completely browser-based encoding.

Decode binary text to its original format with various advanced options. Fast, secure, and completely browser-based decoding.

Encode text to binary format with various advanced options. Fast, secure, and completely browser-based encoding.

Test your camera with real-time preview, filters, effects, photo capture, and video recording with audio

Generate all required Chrome extension icon sizes from a single image or SVG with customization options

Convert CSV files to Excel format (XLSX) quickly and easily in your browser

View comprehensive information about your device, browser, screen, network, and system specifications in real-time

A powerful online whiteboard tool for sketching hand-drawn diagrams and wireframes with multiple pages and full-screen support

Convert Excel files (XLSX) to CSV format quickly and easily in your browser

Generate multi-resolution .ico favicon files from images for all browsers

Test your gamepad/controller with real-time button visualization, analog stick mapping, and vibration testing

Build advanced Google search queries using operators like site, filetype, intitle, and inurl for precise search results

Decode hexadecimal text to its original format with various advanced options. Fast, secure, and completely browser-based decoding.

Encode text to hexadecimal format with various advanced options. Fast, secure, and completely browser-based encoding.

Edit HTML code with live preview and console output in a powerful online editor

Convert HTML entities back to their original characters for easy reading

Convert special characters to HTML entities for safe display in web pages

Convert HTML code to PDF format with live preview and customizable export options

Find your IP address, location, ISP, timezone, and other information about your internet connection

Format and beautify minified JavaScript code to make it readable and easy to understand

Debug JavaScript code in your browser with breakpoints, console output, and variable inspection

Minify and compress JavaScript code to reduce file size for faster loading and better performance

Obfuscate and protect JavaScript code to make it difficult to reverse-engineer and understand

Edit, format, validate, and transform JSON with dual-pane editor interface

Decode, verify, modify, and edit JSON Web Tokens (JWT) with support for multiple algorithms

Generate RSA and ECDSA public/private key pairs securely in your browser - 100% private, keys never leave your device

Test your keyboard with visual key press detection, statistics, heat maps, and ghosting detection

Edit markdown with live preview and export to PDF, HTML, and other formats

Generate MD5 hash from text or files instantly. Fast, secure, and browser-based cryptographic hash generation.

View metadata from any file type. Extract checksums, file properties, EXIF data, camera settings, GPS coordinates, and more.

Test your microphone with real-time audio visualization, spectrum analyzer, and volume meter

Test your mouse with real-time button visualization, scroll wheel tracking, DPI measurement, and response time analysis

Predict the next number in a sequence using machine learning trained directly in your browser

A powerful online notepad with Monaco editor featuring syntax highlighting, IntelliSense, and auto-save capabilities for code and text editing

Open multiple URLs in new tabs simultaneously with customizable delay and smart URL validation.

Generate secure, random passwords privately in your browser with customizable options - no passwords stored or transmitted

Generate permutations and combinations from character sets or word lists - perfect for security testing, password cracking wordlists, and penetration testing

Detect and identify Personally Identifiable Information (PII) in text using offline regex-based patterns

Complete PWA setup wizard - Generate icons and manifest in one place

Generate all required PWA icons for Android, iOS, and Windows in one click

Generate a complete manifest.json file for your Progressive Web App

Generate customizable QR codes with logos and patterns - create professional QR codes for URLs, text, and more with full browser-based privacy

Scan QR codes from camera, uploaded images, or pasted images. Extract text, URLs, and data from QR codes instantly.

Record your screen with audio, preview recordings, and trim videos directly in your browser

Share files securely with peer-to-peer WebRTC connections. No server storage, complete privacy.

Generate SHA-1 hash from text or files instantly. Fast, secure, and browser-based cryptographic hash generation.

Generate SHA-256 hash from text or files instantly. Fast, secure, and browser-based cryptographic hash generation.

Generate SHA-512 hash from text or files instantly. Fast, secure, and browser-based cryptographic hash generation.

Collaborate in real-time with Monaco editor and secure WebRTC peer-to-peer connections. No server storage, complete privacy.

Find your Telegram group chat IDs easily by entering your bot token. Completely browser-based for maximum privacy.

Convert text into a sequence of ASCII character codes.

Decode TOON (Token-Oriented Object Notation) format back to JSON. Convert compact TOON data structures to standard JSON format.

Encode JSON to TOON (Token-Oriented Object Notation) format. Reduce token usage by 30-60% for LLM inputs with uniform data structures.

Generate Time-based One-Time Passwords (TOTP) instantly. Compatible with Google Authenticator, Microsoft Authenticator, Authy, and all 2FA apps. Completely secure and browser-based.

Decode URL-encoded text back to its original format. Fast, secure, and completely browser-based decoding.

Encode URLs and text for safe transmission over the internet. Fast, secure, and completely browser-based encoding.

Generate VAPID keys for web push notifications securely in your browser - 100% private, no data leaves your device

Decode XML entities back to their original characters

Encode special characters for safe use in XML documents