⚡ 100+ Free Tools — Zero Telemetry

The Ultimate
Utility Platform

PDF manipulation, text processing, mathematical calculators, image utilities, SEO tools and more — all running directly in your browser. No signup. No limits.

⚡ Client-Side Processing 🔒 Zero Data Upload 🆓 Completely Free 📱 Works on Any Device 🚫 No Registration
📄 PDF Tools

PDF Tools

Local-first PDF operations. No uploads. All client-side.

View All 11 Tools →
🗜️
PDF Compressor
Reduce file size
📑
PDF Merger
Combine multiple PDFs
✂️
PDF Splitter
Extract page ranges
⚡
PDF Optimizer
Advanced optimization
🔒
PDF Protector
Add passwords
🔓
PDF Unlocker
Remove passwords
🔄
PDF Converter
Convert to/from formats
🩹
PDF Repair
Fix corrupted files
🖼️
Image to PDF
Build PDF from images
📝
PDF to Text
Extract raw text
📡
PDF Metadata
View & edit metadata
📝 Text Tools

Text Tools

Transform, analyze, and encode text instantly in-browser.

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🔤
Case Converter
UPPER / lower / Title
📝
Word Counter
Words, sentences, reading time
🔢
Character Counter
With/without spaces
🔄
String Reverse
Flip text or lines
📄
Lorem Ipsum
Generate placeholder text
🔍
Find & Replace
With regex support
🔃
Line Sorter
A–Z, length, random
🗑️
Duplicate Remover
Deduplicate lines
🔗
Slug Generator
URL-safe slugs
🔐
Base64 Codec
Encode & decode
🌐
URL Encoder
Encode & decode URLs
{}
JSON Beautify
Format & validate JSON
📐
Text Formatter
Indent, align, wrap
#️⃣
Hash Generator
MD5, SHA-256, SHA-512
↔️
Text Diff
Compare two texts
📰
XML Formatter
Beautify & validate XML
🔍
Regex Tester
Real-time pattern match
📈
Text Statistics
Readability & frequency
🛡️
Text Encryption
AES-GCM browser crypto
🗄️
SQL Formatter
Pretty-print SQL
🎨
CSS Minifier
Compress stylesheets
📜
JS Minifier
Minify JavaScript
🔑
JWT Decoder
Inspect JWT tokens
⏲️
Cron Generator
Build cron expressions
📻
Morse Code
Text ↔ Morse
0️⃣
Binary Converter
Text ↔ Binary
🎨
Hex to RGB
Color format converter
👁️
Color Blindness
Simulate deficiencies
🧮 Calculators

Calculators

Precision math, finance, and health calculators.

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🔢
Simple Calculator
Basic arithmetic
🎂
Age Calculator
Date-of-birth analysis
📅
Date Calculator
Diff between dates
💯
Percentage Calc
%, increase, decrease
⚖️
BMI Calculator
Body Mass Index
💸
Loan Calculator
Monthly repayments
🍽️
Tip Calculator
Split bills easily
🏷️
Discount Calc
Sale price & savings
⛽
Fuel Calculator
Trip cost & MPG
🏠
Mortgage Calc
PITI breakdown
🎓
GPA Calculator
Grade point average
📈
Interest Calc
Simple & compound
💰
ROI Calculator
Return on investment
🍎
Calorie Calc
BMR & TDEE
📊
Average Calc
Mean, median, mode
🖼️ Image Tools

Image Tools

Resize, compress, and convert images in-browser.

View All 6 Tools →
📏
Image Resizer
Scale to any dimension
🗜️
Image Compressor
Reduce image size
🔄
Image Converter
PNG, JPG, WebP, AVIF
✂️
Image Cropper
Crop & frame
🎨
Color Picker
Extract palette from image
📦
Image to Base64
Embed in CSS/HTML
🔍 SEO Tools

SEO Tools

Boost rankings with dedicated SEO analysis utilities.

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🏷️
Meta Tag Generator
Title, OG, Twitter
🗺️
Sitemap Generator
Build XML sitemaps
📊
Keyword Density
Frequency analysis
🤖
Robots.txt Gen
Serve bots rules
🔍
SERP Preview
Google result preview
🔄 Converters

Converters

Real-time unit, currency, temperature, and data conversions.

View All 6 Tools →
📏
Unit Converter
Length, weight, volume
💱
Currency Converter
Major world currencies
🌡️
Temperature
Celsius, Fahrenheit, Kelvin
💾
Data Size
Bytes, KB, MB, GB, TB
01
Number Base
Bin, Oct, Dec, Hex
🌍
Time Zone
World clock differences
⚙️ Generators

Generators

Cryptographically secure passwords, UUIDs, colours, and names.

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🔒
Password Generator
Secure random passwords
🆔
UUID Generator
Standard UUID v4
🔢
Random Number
Custom range
🎨
Random Color
HEX, RGB, HSL
👤
Random Name
Testing & creative use
✅ Validators

Validators

Validate emails, URLs, JSON, XML, and credit cards instantly.

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✉️
Email Validator
Format & domain check
🔗
URL Validator
Protocol & structure
{}
JSON Validator
Syntax & error location
🏷️
XML Validator
Document structure
💳
Credit Card
Luhn algorithm check
📱 Social Tools

Social Tools

QR codes, hashtags, tweet mockups, and WhatsApp links.

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📺
YouTube Thumbnail
Download video thumbs
📱
QR Code Generator
URL, text, contact
🐦
Tweet Generator
Fake tweet mockups
#️⃣
Instagram Hashtags
Trending tag generator
💬
WhatsApp Link
Click-to-chat links
💻 Developer Tools

Developer Tools

Format, lint, and analyse code — HTML, SQL, JSON and more.

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📝
HTML Formatter
Beautify & minify HTML
🗄️
SQL Formatter
Pretty-print queries
🌳
JSON Viewer
Interactive tree view
⏲️
Cron Generator
Visual crontab builder
🕵️
User Agent Parser
Browser UA analysis

Why OnlineTools?

Built with privacy, speed, and accessibility as first-class concerns.

⚡
Zero Latency
All tools run in the browser using native Web APIs. No round-trips to a server means instant results.
🔒
Zero Telemetry
Your data never leaves your device. Files are processed in memory and discarded on close.
🆓
Free Forever
Every tool is 100% free with no usage caps, subscriptions, or rate limits hidden in fine print.
📱
Cross-Device
Fully responsive. Works equally well on desktop, tablet, and mobile — any browser, any OS.
🛠️
100+ Tools
A constantly growing library of utilities spanning text, PDF, math, color, SEO, and image processing.