TECHTOOLS
by TechUsar
Complete Directory40 Utilities Available100% Free & Ad-Free

All Online Tools & AI Utilities

Search, filter, and discover our complete suite of browser-native web utilities, cryptographic tools, image processors, financial calculators, and Gemini AI assistants.

Showing 40 of 40 total utilities
Trending

JSON Formatter & Validator

Format, validate, beautify, and minify your JSON data with instant syntax error highlighting.

Developer ToolsUnlimited

Base64 Encoder & Decoder

Encode text or binary data into Base64 format or decode Base64 strings with UTF-8 support.

Developer ToolsUnlimited

JWT Debugger & Decoder

Decode and inspect JSON Web Tokens (JWT) headers, payloads, and expiration claims securely.

Developer ToolsFree Tier

UUID / GUID Generator

Generate bulk cryptographically random Version 4 UUIDs and GUIDs with custom formatting options.

Developer ToolsUnlimited

Regex Tester & Matcher

Test and debug Regular Expressions in real-time with visual match highlighting and capture group breakdown.

Developer ToolsFree Tier

Hash Generator (MD5, SHA-256, SHA-512)

Generate cryptographic checksums and hashes including SHA-256, SHA-512, SHA-1, and MD5.

Developer ToolsUnlimited

Unix Timestamp Converter

Convert Unix epoch timestamps (seconds & milliseconds) to human-readable dates and vice versa.

Developer ToolsUnlimited
AI ToolTrending

AI Text Summarizer

Condense long articles, reports, meeting notes, and research into clear, structured bullet points.

AI ToolsFree Tier
AI Tool

AI Content Rewriter & Paraphraser

Rewrite and rephrase sentences, paragraphs, or articles to improve clarity, tone, and flow.

AI ToolsFree Tier
AI Tool

AI Grammar & Style Fixer

Detect and fix grammatical errors, typos, punctuation mistakes, and awkward phrasing instantly.

AI ToolsFree Tier
AI Tool

AI Code Explainer & Optimizer

Get clear, step-by-step explanations for complex code snippets, find bugs, and receive optimization tips.

AI ToolsFree Tier
AI Tool

AI Regex Generator & Explainer

Describe what you want to match in plain English, and let AI generate the exact Regular Expression.

AI ToolsFree Tier
AI Tool

AI SEO Title & Meta Description Generator

Generate high-CTR SEO meta titles, descriptions, and OpenGraph tags tailored for Google search rankings.

AI ToolsFree Tier
AI Tool

AI Professional Email Writer

Craft professional business emails, follow-ups, client outreach, and polite inquiries in seconds.

AI ToolsFree Tier
Trending

Image Compressor & Optimizer

Compress PNG, JPG, and WebP images directly in your browser with zero server uploads and live visual comparison.

Image ToolsUnlimited

Image Resizer & Format Converter

Resize images by pixels or percentage, lock aspect ratios, and convert between JPG, PNG, and WebP.

Image ToolsUnlimited

Image to Base64 & Data URI Converter

Convert any image file into a Base64 encoded Data URI string for direct embedding into HTML, CSS, or JSON.

Image ToolsUnlimited

Favicon & App Icon Generator

Create multi-resolution website favicons and mobile app icons (16x16, 32x32, 48x48, 180x180, 512x512) from any image.

Image ToolsFree Tier

Word & Character Counter

Real-time word, character, sentence, paragraph, reading time, speaking time, and keyword density analyzer.

Text ToolsUnlimited

Text Case Converter

Convert text instantly to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, and kebab-case.

Text ToolsUnlimited

Text Diff & Comparison Tool

Compare two text snippets side-by-side or inline to spot additions, deletions, and differences instantly.

Text ToolsFree Tier

Lorem Ipsum Generator

Generate customizable dummy placeholder text by paragraphs, sentences, words, or unordered list items.

Text ToolsUnlimited

Google SERP Snippet Preview

Simulate how your webpage appears on Google Desktop and Mobile search results with real-time character & pixel meters.

SEO ToolsFree Tier

Open Graph & Twitter Card Generator

Generate and preview OpenGraph (Facebook/LinkedIn) and Twitter card meta tags with live social share simulation.

SEO ToolsFree Tier

Schema.org JSON-LD Generator

Build valid Schema.org structured data in JSON-LD format for Articles, FAQs, Products, Organizations, and Local Businesses.

SEO ToolsFree Tier
Trending

Invoice & Receipt Generator

Create professional invoices and receipts with custom line items, tax, discount, logo, currency, and instant PDF print.

Business ToolsFree Tier

Profit Margin & Markup Calculator

Calculate gross profit margin, markup percentage, revenue, and gross profit from cost and selling price.

Finance ToolsUnlimited

Loan EMI & Mortgage Calculator

Calculate monthly loan EMI payments, total interest payable, and breakdown schedule for home or personal loans.

Finance ToolsUnlimited

Compound Interest Calculator

Calculate compound interest growth over time with monthly contributions and customizable compounding frequencies.

Finance ToolsUnlimited

All-in-One Percentage Calculator

Calculate what is X% of Y, percentage increase/decrease between numbers, and fractional percentages with ease.

CalculatorsUnlimited

Exact Age & Date Calculator

Calculate your exact age in years, months, days, hours, and minutes, plus days remaining until your next birthday.

CalculatorsUnlimited

Universal Unit Converter

Convert units for Length (meters, feet, miles, inches), Weight (kg, lbs, oz), Temperature (°C, °F, K), and Data Storage (MB, GB, TB).

ConvertersUnlimited
Trending

Strong Password Generator & Security Analyzer

Generate ultra-secure, cryptographically strong passwords with custom lengths, symbols, entropy scores, and crack time estimates.

Security ToolsUnlimited
Trending

QR Code Generator

Create high-resolution QR codes for URLs, WiFi credentials, plain text, Email, and vCard contacts with custom colors and PNG download.

GeneratorsUnlimited

Color Code Converter & Picker

Convert colors between HEX, RGB, HSL, HSV, and CMYK formats with live visual color picker and CSS code export.

Color ToolsUnlimited

WCAG Color Contrast Checker

Check color contrast ratios against WCAG 2.1 AA and AAA accessibility standards for normal and large text.

Color ToolsUnlimited

CSS Box Shadow & Glow Generator

Design elegant multi-layer CSS box shadows and glows with visual sliders and instant CSS code output.

Design & CSSUnlimited

URL Encoder & Decoder

Encode special characters into percent-encoded URL formats or decode encoded URI strings.

Developer ToolsUnlimited

UTM Campaign URL Builder

Add campaign parameters (utm_source, utm_medium, utm_campaign, utm_term, utm_content) to track marketing performance.

SEO ToolsUnlimited

URL Slug Generator

Convert any title, sentence, or article name into a clean, SEO-friendly, lowercase URL slug with custom separators.

GeneratorsUnlimited

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