All Free Tool Categories (2026) , 16 Categories, 249+ Tools

Password Generator

Generate secure, random passwords with customizable length, numbers, and special characters , no data sent to any server.

QR Code Generator

Create QR codes for URLs, text, WiFi credentials, and email with one-click download , instantly in your browser.

Base64 Encode/Decode

Encode and decode text to and from Base64 format instantly in your browser , essential developer utility.

JWT Decoder

Decode and inspect JSON Web Tokens to view header, payload, and signature structure , essential for API debugging.

URL Encode/Decode

Encode and decode URLs with percent-encoding support , fix broken query strings and API parameters instantly.

JSON Formatter & Validator

Format, validate, and minify JSON with error highlighting , instantly beautify messy JSON responses.

HTML/XML Escape

Convert special characters to and from HTML entities , prevent XSS and fix broken markup instantly.

CSS Minifier/Formatter

Minify or beautify CSS code for production optimization or readable development , instant browser-side processing.

Text to PDF Converter

Convert plain text to formatted PDF documents with customizable page size , free, no software required.

Text to Word Converter

Generate Word documents (.docx) from plain text instantly , download ready-to-share documents in seconds.

PDF to Word Converter

Extract text from PDF and convert it into an editable Word document , free browser-based PDF converter.

Word to PDF Converter

Convert Word documents to PDF format instantly in your browser , no Microsoft Office or plugins needed.

Image Converter

Convert images between JPG, PNG, WebP, ICO, and AVIF formats instantly in your browser , no upload required.

Image Compressor

Compress and optimize images with adjustable quality and live preview , reduce file size for faster web performance.

Image Resizer

Resize images to preset or custom dimensions , social media presets, pixel-perfect, and percentage-based scaling.

Favicon Generator

Generate multi-size favicon assets from an uploaded source image , download ICO, PNG, and Apple touch icon formats.

CSS Gradient Generator

Create linear and radial gradients with multiple color stops , copy ready-to-use CSS background-image code.

Box Shadow Generator

Create CSS box shadows visually with offset, blur, spread, and color controls , copy production-ready code.

Border Radius Generator

Generate CSS border-radius values for custom rounded shapes , visual editor with live preview and copy.

CSS Grid Generator

Build grid layouts visually and copy clean CSS for responsive interfaces in seconds.

Meta Tags Generator

Generate SEO-friendly meta tags including Open Graph, Twitter Card, and canonical tags , copy-ready HTML with live preview.

Robots.txt Generator

Create robots.txt files for your website , control search engine crawlers, disallow paths, and set sitemaps.

Sitemap Generator

Generate XML sitemaps from a list of URLs , set priorities, change frequencies, and download instantly.

SSL Checker

Check SSL certificate validity, expiry, and HTTPS status for any domain , essential web security audit tool.

Percentage Calculator

Solve common percentage calculations instantly , what is X% of Y, percentage change, and reverse percent.

GPA Calculator

Estimate GPA from course grades and credit hours , supports 4.0 and weighted grading systems.

Age Calculator

Calculate exact age from a birth date with years, months, and days , find how many days until your birthday.

Date Difference Calculator

Measure the exact duration between two dates and times , calculate days, weeks, months, and hours between dates.

Random Video, Audio & Image Generator

Find and download random royalty-free media across video, audio, and images in one place.

Random Number Generator

Generate integers or decimals within a custom range , fair random number picker for games and decisions.

Random Color Generator

Generate random HEX and RGB colors with instant swatches , discover new palette combinations.

Random Name Generator

Generate first and last name combinations for mock data, fiction, and test environments.

Text to Speech

Convert text to natural-sounding speech instantly in your browser , choose from multiple voices, control pitch and rate, with live frequency visualizer.

Audio Enhancer & Vocal Remover

Remove background noise from recordings or separate vocals from music , browser-based audio processing with waveform visualizer.

Video Editor Lite

Trim, crop, convert, and edit video files fully in your browser with a no-upload workflow.

Video to Audio Converter AI

Extract audio from video files and export MP3 or WAV tracks directly in your browser.

Image to PDF Converter

Combine JPG, PNG, WebP, GIF, BMP, and SVG images into a single PDF - customize page size, orientation, margins, image fit, and background in your browser.

PDF to Image Converter

Render every page of a PDF as a high-quality JPG, PNG, JPEG, or WebP image. Custom resolution, page selection, and bulk ZIP download - runs entirely in your browser.

Edit PDF AI

Edit and update PDF files directly in your browser with a fast AI-assisted workflow.

ZIP File Compressor

Bundle multiple files into a downloadable ZIP archive locally , no server upload, fully private.

Color Contrast Checker

Check foreground and background color contrast against WCAG AA and AAA thresholds , accessibility audit tool.

Heading Structure Outline

Audit pasted HTML for heading order, skipped levels, and document outline clarity , accessibility and SEO check.

ARIA Label Reviewer

Review interactive elements for missing accessible names and weak ARIA labeling , screen reader audit.

Focusable Elements Checker

List focusable controls, tabindex order, and skip-link coverage from pasted markup , keyboard navigation audit.

Chart Generator

Turn pasted CSV, JSON, or plain text into configurable charts and downloadable reports , instant data visualization.

Internet Speed Test

Measure download, upload, ping, and jitter directly in your browser with a quick connection benchmark.

WiFi Speed Test

Measure download speed, upload speed, latency, and connection quality with browser-native benchmarks.

Ping Test Tool

Test round-trip request latency to a public URL with browser-safe fetch timing , check server response time.

Profit Margin Calculator

Calculate profit, markup, and gross margin from revenue and cost inputs , quick business profitability tool.

Sales Tax Calculator

Calculate tax-inclusive totals and tax amounts from any subtotal and rate , invoice and retail pricing tool.

Pricing Markup Calculator

Turn unit cost and target markup percentage into a selling price and gross margin estimate , retail pricing tool.

Subscription Revenue Forecast

Project customer growth, churn, MRR, and ARR from SaaS revenue assumptions , startup financial model.

Voltage Divider Calculator

Calculate divided output voltage and resistor ratios for analog circuits , electronics engineering tool.

LED Series Resistor Calculator

Calculate a safe resistor value and power rating for single-LED circuits , beginner electronics tool.

Power Supply Runtime Calculator

Estimate battery runtime from capacity (mAh) and expected load current , power electronics tool.

Capacitor Charge/Discharge Calculator

Estimate RC time constants and charge thresholds for timing circuits , capacitor electronics calculator.

Fraction Simplifier

Reduce fractions to lowest terms and convert to decimals and percentages , math tool for students.

Scientific Notation Converter

Convert numbers between expanded form and scientific notation , essential math and physics study tool.

Study Session Planner

Build focused Pomodoro-style study blocks with short and long breaks , student productivity tool.

Flashcard Randomizer

Shuffle custom flashcard prompts for quick exam practice , spaced repetition study tool.

Moon Phase Finder

Estimate the moon phase and illumination percentage for any calendar date , amateur astronomy tool.

Escape Velocity Calculator

Calculate escape velocity from planetary mass and radius , space physics and astronomy education tool.

Planet Weight Calculator

Compare your Earth weight against gravity on all planets and the moon , space education tool.

Telescope Magnification Comparator

Compare eyepiece magnification and field-of-view tradeoffs for any telescope setup , astronomy optics tool.