50+ Free Online Browser Utilities
High-performance, privacy-focused client-side calculators, converters, image compressors, and Android tools. Zero installation required.
APK File Information Checker
Inspect APK package name, version, file size, permissions, and compute client-side SHA-256 hash.
APK Size Calculator
Calculate decompressed app installation footprint, DEX bytecode size, native lib overhead, and cache expansion.
App Storage Calculator
Calculate phone internal storage breakdown, OS reserve, app installation capacity, and free space safety margins.
Android Screen Size Calculator
Calculate screen physical dimensions (width, height, area) in inches and millimeters from resolution and aspect ratio.
DPI Calculator
Calculate Android Dots Per Inch (DPI), Density Bucket (mdpi, hdpi, xhdpi, xxhdpi, xxxhdpi), and dp-to-px scaling factors.
PPI Calculator
Calculate Pixels Per Inch (PPI) for smartphones, tablets, and monitors with clarity rating meter.
Aspect Ratio Calculator
Calculate and simplify aspect ratios (16:9, 19.5:9, 20:9, 4:3, 21:9) and compute proportional dimensions.
Image Compressor
Compress JPG, PNG, and WebP images client-side with adjustable quality slider and instant download.
Image Resizer
Resize image dimensions by exact pixels or percentage while maintaining aspect ratio.
Image Converter
Convert images between JPG, PNG, WebP, GIF, and BMP formats instantly in your browser.
JPG to PNG Converter
Convert JPEG/JPG images to lossless PNG format with transparency support.
PNG to JPG Converter
Convert PNG images to lightweight JPG format with customizable background fill color.
WebP Converter
Convert JPG, PNG, and GIF images to next-gen Google WebP format for fast web and app loading.
Image to WebP Converter
High efficiency batch-ready image to WebP converter with live file size comparison.
QR Code Generator
Generate custom high-resolution QR codes for URLs, text, Wi-Fi networks, SMS, and contacts.
QR Code Reader
Scan and decode QR codes from image files or screenshots directly in your browser.
Password Generator
Generate strong, cryptographically secure random passwords with customizable length and symbol rules.
Password Strength Checker
Analyze password entropy, crack time estimation, pattern vulnerabilities, and security score in real time.
Username Generator
Generate creative, available usernames for Android games, Discord, GitHub, and social media platforms.
UUID Generator
Generate RFC 4122 Version 4 UUIDs (Universally Unique Identifiers) individually or in batch.
Base64 Encoder
Encode text or binary data into standard or URL-safe Base64 encoded string format.
Base64 Decoder
Decode Base64 encoded strings back into readable UTF-8 text with auto error detection.
URL Encoder
Percent-encode URLs and query string parameters to ensure RFC 3986 compliance.
URL Decoder
Decode percent-encoded URLs and extract URL components and query parameters into a structured table.
JSON Formatter
Format, beautify, indent, and validate JSON data with syntax highlighting and minify options.
JSON Validator
Validate JSON syntax and detect syntax errors, line numbers, and missing brackets with precision.
XML Formatter
Format and beautify XML and Android AndroidManifest.xml structures with clean tree indentation.
HTML Formatter
Beautify and indent HTML markup with proper nesting and clean tag formatting.
CSS Minifier
Minify CSS code by stripping comments, collapsing whitespace, and removing redundant semicolons.
JavaScript Minifier
Minify and compress JavaScript code client-side by removing comments, whitespace, and empty lines.
Word Counter
Real-time word, character, sentence, paragraph, reading time, and speaking time counter.
Character Counter
Count exact characters, byte size in UTF-8, spaces, lines, and social media character limits.
Text Case Converter
Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and kebab-case.
Text Cleaner
Clean up messy text by removing duplicate spaces, line breaks, HTML tags, special symbols, and emojis.
Duplicate Text Remover
Find and remove duplicate lines, words, or list items with case-sensitive options and sorting.
Text Sorter
Sort lists of text alphabetically (A-Z, Z-A), numerically, by line length, or shuffle randomly.
Slug Generator
Convert article titles, app names, and phrases into clean, SEO-optimized URL slugs.
Meta Description Generator
Generate high-converting SEO meta descriptions with character counter and Google SERP preview.
Keyword Density Checker
Analyze keyword frequency, 1-word, 2-word, and 3-word phrase density to prevent SEO keyword stuffing.
Color Picker
Interactive color picker with HEX, RGB, HSL, CMYK, Android XML Color (#AARRGGBB), and shade palette generator.
HEX to RGB Converter
Convert hexadecimal color codes (3, 6, or 8 digits) to RGB and RGBA with opacity slider.
RGB to HEX Converter
Convert Red, Green, Blue (0-255) color values into 6-digit Hexadecimal color codes.
Timestamp Converter
Convert human date and time to Unix Epoch timestamp (seconds & milliseconds) and vice versa.
Unix Timestamp Converter
Convert 10-digit and 13-digit Unix timestamps into human-readable local, UTC, and relative dates.
File Size Converter
Convert file sizes across Bytes, KB, MB, GB, TB, and PB in both Binary (1024) and Decimal (1000) standards.
MB to GB Converter
Fast bidirectional Megabytes (MB) to Gigabytes (GB) converter for mobile data and storage.
Internet Speed Calculator
Convert between Mbps (Megabits) and MB/s (Megabytes), and calculate streaming bitrate requirements.
Download Time Calculator
Calculate exact download time (hours, minutes, seconds) for any APK or file size over 3G, 4G, 5G, or Wi-Fi.
Android Battery Life Calculator
Estimate Android screen-on time (SOT) and standby battery backup based on battery mAh capacity and usage intensity.
Android Storage Calculator
Calculate how many photos, 4K videos, MP3 songs, and APK games will fit on your Android phone storage.