Your Everyday Free Online Utility Suite
Access all 38 lightning-fast, private browser utilities. Convert file formats, calculate network metrics, manipulate PDFs, and format code with zero paywalls or registrations.
All 38 Free Utilities Directory
Click any tool card below to launch its dedicated free web utility.
Aspect Ratio Calculator Online
Calculate proportional dimensions, rescale video resolutions, and generate CSS tokens.
Base64 Encoder Decoder Online
Encode and decode UTF-8 text, binary files, and data URIs securely in your browser.
Base64 Image Converter Online
Convert images to Base64 data URIs and decode Base64 strings back to image files.
Bcrypt Hash Generator Online
Generate and verify salted Bcrypt password hashes with custom cost rounds and zero server uploads.
Bulk WebP to PNG Transparent Converter Online
Batch convert WebP images to universal PNG files with true alpha transparency retention.
Chmod Permissions Calculator Online
Calculate Linux file permissions, octal codes, and symbolic rwx strings instantly.
Color Palette and Contrast Checker Online
Generate accessible palettes and test WCAG 2.1 contrast ratios instantly.
Compound Interest Calculator Online
Forecast exponential wealth growth, monthly contributions, and amortization schedules.
Cron Expression Generator Online
Build and translate crontab schedules visually with next execution time projections.
CSS Box Shadow Generator Online
Design realistic multi-layer shadows and export Tailwind tokens with smooth ambient depth.
CSV to JSON Converter Online
Transform CSV files and spreadsheets into clean JSON arrays with custom delimiters.
Curl to Code Converter Online
Convert cURL commands to JavaScript Fetch, Axios, Python, and Go instantly.
Freelance Day Rate to Hourly Rate Formula Calculator
Calculate your real freelance day rate accurately factoring in billable hours, taxes, and overhead.
HTML Entity Encoder Decoder Online
Encode and decode HTML entities instantly with named/numeric formats and XSS sanitization preview.
Image Compressor Online
Shrink JPG, PNG, and WebP file sizes by up to 85% while preserving visual clarity.
Image Resizer Online
Scale and crop photos instantly with custom pixel dimensions and social media presets.
Image to PDF Converter Online
Convert JPG, PNG, and WebP photos into professional PDF documents with custom margins.
JSON Formatter Online
Format, validate, beautify, and minify JSON payloads with instant tree view inspection.
JSON to CSV Converter Online
Convert nested JSON and API arrays into CSV spreadsheets instantly with auto-flattening.
JWT Decoder Online
Decode, inspect, and verify JSON Web Tokens client-side with human timestamps and signature checks.
Lorem Ipsum Generator Online
Generate placeholder dummy text instantly with custom paragraphs, words, and HTML tags.
Markdown to HTML Converter Online
Convert Markdown to clean HTML code instantly with live side-by-side preview and GFM tables.
Online Word Counter
Analyze character counts, reading times, sentences, and keyword density live in your browser.
PDF Merger Online
Combine multiple PDF documents into a single secure file with interactive page reordering.
PDF to PNG Converter Online
Extract crystal-clear 300 DPI PNG images from PDF document pages with batch ZIP download.
Percentage Calculator Online
Compute percentage increases, sales discounts, profit margins, and ratios instantly.
Pomodoro Timer Online
Boost your focus with customizable work/break intervals, task checklists, and audio chimes.
Regex Tester and Debugger Online
Test, debug, and explain regular expressions in real-time with syntax highlighting and substitution.
Subnet CIDR Calculator Online
Calculate IP network ranges, subnets, and host capacities with 32-bit binary mask visualizer.
SVG to PNG Converter Online
Rasterize vector graphics with transparent backgrounds and 1x to 8x resolution upscaling.
Text Diff Checker Online
Compare text, code, and documents side-by-side with character-level highlights.
Curl to Code Converter Online
Convert cURL commands to JavaScript Fetch, Axios, Python, and Go instantly.
Chmod Permissions Calculator Online
Calculate Linux file permissions, octal codes, and symbolic rwx strings instantly.
Cron Expression Generator Online
Build and translate crontab schedules visually with next execution projections.
YAML to JSON Converter Online
Convert YAML to JSON and JSON to YAML bi-directionally with live validation.
Unix Timestamp Converter Online
Convert Unix epoch timestamps to human-readable dates and back instantly.
UUID Generator Online
Generate cryptographically secure UUID v4, v1, and v7 identifiers in bulk.
Bulk WebP to PNG Transparent Converter Online
Batch convert WebP images to universal PNG files with true alpha transparency retention.
Frequently Asked Questions About Our Free Web Utilities
Everything you need to know about using our free calculators, image converters, and developer tools.