Free Online Tools
Free Online Toolbox ยท Minimal Tools ยท Maximum Value
89+ free online tools for developers, designers, and everyone. No installation, instant use, privacy-first.
PDF Tools
PDF to Word
Free Online PDF to Word Converter
Free online PDF to Word converter. Convert PDF to editable DOCX with formatting preserved. No installation or signup required.
PDF to JPG
Free PDF to JPG Image Extractor
Free online PDF to JPG converter. Extract PDF pages as high-quality JPG images instantly. No registration or watermark.
Compress PDF
Free Online PDF Compressor
Free online PDF compressor. Reduce PDF file size by up to 80% while maintaining quality. Fast, secure, no signup needed.
JPG to PDF
Free Online JPG to PDF Converter
Free online JPG to PDF converter. Convert and merge multiple images into one PDF. Drag-and-drop reordering, no watermark, no signup.
Image to PDF
Convert & Combine Images to PDF, No Upload
Convert JPG, PNG, and WebP images to PDF online. Combine multiple images into one PDF โ all processed in your browser.
Merge PDF
Combine Multiple PDFs โ Drag to Reorder
Merge multiple PDF files into one document online. Drag and drop to reorder pages before merging.
Split PDF
Split by Pages or Range, Download ZIP
Split a PDF into individual pages or custom page ranges. Download as ZIP โ free and instant.
Image Tools
PNG to JPG
Free Online PNG to JPG Converter
Free online PNG to JPG converter. Convert PNG images to JPG with adjustable quality. No signup, no watermark, batch conversion supported.
Favicon Generator
Free Favicon.ico Generator from Image
Free online favicon generator. Convert PNG, JPG, or SVG to favicon.ico for your website. Generates all required sizes from 16ร16 to 256ร256.
ICO to PNG JPG
Favicon ICO to PNG / JPG Converter
Convert favicon.ico to PNG or JPG. Extract all sizes from an ICO file and download individually or as a ZIP.
PNG to ICNS
Free PNG to macOS ICNS Icon Converter
Free online PNG to ICNS converter. Create macOS app icons in ICNS format from PNG images. Generates all required sizes for Mac app development.
WebP Converter
Free Online WebP to JPG / PNG Converter
Free online WebP converter. Convert WebP images to JPG or PNG format instantly. No installation required, batch conversion supported.
SVG to PNG
Free Online SVG to PNG Converter
Free online SVG to PNG converter. Convert SVG vector graphics to PNG bitmap images at any resolution. No software installation required.
PNG to SVG
Free Online PNG to SVG Vectorizer
Free online PNG to SVG converter. Vectorize PNG bitmap images to scalable SVG format. Ideal for logos, icons, and illustrations.
GIF Frame Extractor
GIF Frame Splitter
Extract individual frames from animated GIF images.
EXIF Viewer
Free Online EXIF Metadata Viewer
Free online EXIF viewer. Read EXIF metadata from JPG, PNG, and TIFF photos. View camera settings, GPS location, timestamp, and more.
EXIF Auto Orient
Fix Image Rotation
Automatically fix image rotation based on EXIF orientation data.
Image to Base64
Free Image to Base64 Data URI Encoder
Free online image to Base64 encoder. Convert PNG, JPG, GIF, and SVG images to Base64 data URI strings for embedding in HTML or CSS.
Base64 to Image
Free Online Base64 to Image Decoder
Free online Base64 to image decoder. Convert Base64 data URI strings back to viewable and downloadable images. Supports PNG, JPG, GIF, WebP.
Image Compressor
Free browser-based image compression, no upload
Compress JPG, PNG, and WebP images online. Reduce file size without losing quality โ all processing done in your browser.
Resize Image
Free browser-based image resizer, no upload
Resize images online by pixel dimensions. Lock aspect ratio, choose output format, and download instantly โ all in your browser.
Barcode & QR Code
QR Code Generator
Free Online QR Code Generator
Free online QR code generator. Create QR codes from text, URLs, or any data instantly. Download in PNG or SVG format, no signup needed.
Barcode Generator
Code 128 Barcode Creator
Generate Code 128 barcodes from text, numbers, URLs, or product codes.
QR Code Decoder
QR Code Image Reader
Decode QR codes from uploaded images and copy the result.
Barcode Decoder
1D Barcode Image Reader
Decode one-dimensional barcodes from uploaded images and copy the result.
Barcode & QR Decoder
Barcode and QR Code Reader
Decode barcodes and QR codes from uploaded images.
Network Tools
Ping Test
ICMP Connectivity Test
Test ICMP connectivity and measure latency to a host.
WHOIS Lookup
Domain Registration Info
Look up domain registration and ownership information.
Port Scanner
Free Online Port Scanner & Checker
Free online port scanner. Check open ports on any host or IP address. Detect exposed services and potential security vulnerabilities.
CDN Check
CDN & Real IP Detection
Identify CDN provider and discover the real origin IP.
ASN Lookup
IP Ownership Lookup
Find IP ownership and autonomous system information.
DNS Lookup
Free Online DNS Record Lookup Tool
Free online DNS lookup tool. Query A, AAAA, MX, CNAME, TXT, and all other DNS record types for any domain instantly.
Traceroute
Network Path Tracing
Trace the full network path and hops to a destination.
HTTP Headers
Free Online HTTP Response Header Checker
Free online HTTP header checker. Inspect response headers from any URL. Analyze security headers, cache policy, and server configuration.
WebRTC Leak Test
Detect VPN IP Leaks via WebRTC
Test if your browser leaks your real IP address through WebRTC. Detect VPN leaks instantly in your browser.
Browser Fingerprint
UA ยท Screen ยท GPU ยท Canvas ยท Audio Fingerprint
Check your browser fingerprint. See what unique attributes your browser reveals โ without cookies.
DNS Leak Test
Check DNS Servers ยท IP Leak ยท VPN Privacy Test
Test for DNS leaks. See your IP as the server records it, check your DNS servers, and compare DNS resolvers.
IP Block Test (GFW)
Domestic vs Overseas ยท TCP & ICMP ยท GFW Block Detection
Check whether an IP and port are blocked by China's Great Firewall (GFW). We probe TCP and ICMP from both a domestic (China) node and an overseas node, then compare to tell if the IP is reachable, blocked, or down.
Email Tools
MX Record Checker
Mail Exchange Records
Check MX records for a domain's mail server configuration.
SPF Record Checker
Sender Policy Framework
Validate SPF records for email sender authentication.
DKIM Record Checker
DomainKeys Identified Mail
Check DKIM records for email signature verification.
DMARC Record Checker
Domain-based Message Authentication
Validate DMARC records for email authentication policy.
Email Port Checker
SMTP/IMAP Port Test
Test connectivity of common email ports (25, 465, 587, 993).
TLS Handshake Test
SSL/TLS Connection Test
Test TLS/SSL handshake for mail server connections.
DNSBL Blacklist Checker
DNS Blacklist Lookup
Check if an IP or domain is listed on DNS blacklists.
PTR Reverse Lookup
Reverse DNS Lookup
Perform reverse DNS lookup to find hostnames for an IP.
Email Suite
All-in-One Email Diagnostics
All-in-one email diagnostics including MX, SPF, DKIM, DMARC, and more.
Developer Tools
JSON Formatter
Free Online JSON Formatter & Validator
Free online JSON formatter and validator. Beautify, minify, and validate JSON data with syntax highlighting and instant error detection.
JWT Debugger
Free Online JWT Decoder & Debugger
Free online JWT debugger. Decode, encode, and verify JSON Web Tokens. Inspect header, payload, and signature without sending data to a server.
Text Case Converter
Uppercase, Lowercase, CamelCase & More
Free online text case converter. Transform text between uppercase, lowercase, camelCase, snake_case, kebab-case, PascalCase, and more instantly.
Base64 Text Decoder
Free Online Base64 Text Decoder
Free online Base64 text decoder. Decode Base64 encoded strings to plain text instantly. Supports standard and URL-safe Base64 variants.
Base64 Text Encoder
Free Online Base64 Text Encoder
Free online Base64 text encoder. Encode plain text to Base64 strings instantly. Supports standard and URL-safe Base64 output formats.
UUID Generator
Free Online UUID v4 / v7 Generator
Free online UUID generator. Generate RFC 4122 compliant UUID v4 and v7 identifiers instantly. Batch generation and one-click copy supported.
Base Converter
HEX/DEC/BIN Conversion
Convert numbers between HEX, DEC, OCT, and BIN formats.
Checksum Calculator
CRC16 & Checksum
Calculate CRC16 (MODBUS, CCITT, IBM) and 8/16-bit checksum for ASCII text or HEX bytes. Used for serial communication, protocol verification.
CRC Calculator
All CRC Algorithms
Calculate CRC-8, CRC-16 (MODBUS, CCITT, XMODEM, KERMIT, DNP, IBM, USBโฆ) and CRC-32 checksums for HEX bytes or ASCII text. All common CRC algorithms in one tool.
Hex Arithmetic
HEX +โรรท
Perform addition, subtraction, multiplication and division on hexadecimal numbers. Supports 8/16/32/64-bit result width.
Text Statistics
Word & Char Count
Count characters, words, lines, sentences, bytes (UTF-8/UTF-16) and more in any text. Real-time statistics.
Text Processor
Split / Join / Wrap
Split, join, wrap, add prefix/suffix, and clean text lines. Handles comma-separated values, newlines and custom delimiters.
File Size Converter
Bit, Byte, KB, MB, GB, TB Converter
Free online file size converter. Instantly convert between Bit, Byte, KB, MB, GB, TB, and PB. Essential for developers and system administrators.
Chinese to Pinyin
Hanzi to Pinyin Romanization Converter
Free online Chinese to Pinyin converter. Convert Hanzi to Pinyin with tone marks or numbers. Supports Simplified and Traditional Chinese.
Color Converter
HEX, RGB, HSL Color Converter
Free online color converter. Convert colors between HEX, RGB, HSL, and RGBA formats with live preview. Perfect for web designers and CSS developers.
URL Encoder
Free Online URL Percent-Encoder
Free online URL encoder. Percent-encode strings for safe use in URLs and query parameters. Supports full URI and component encoding modes.
URL Decoder
Free Online URL Percent-Decoder
Free online URL decoder. Decode percent-encoded URL strings back to readable text instantly. Supports full URI and component decoding modes.
Timestamp Converter
Unix Timestamp Conversion
Convert between Unix timestamps and human-readable dates.
Regex Tester
Regex Pattern Tester
Test and debug regular expressions with live matching.
OG Image Generator
1200ร630 Open Graph & Twitter Card Image
Generate 1200ร630 Open Graph images for your website. Customize title, description, colors, and logo โ download PNG instantly.
RSA Encrypt & Decrypt
Public Key Encrypt ยท Private Key Decrypt ยท PEM Format ยท Browser-Only
Online RSA encryption and decryption tool. Generate RSA key pairs (1024/2048/4096 bit), encrypt plaintext with a public key, and decrypt ciphertext with a private key. Supports PEM format. Runs entirely in your browser โ no data is sent to any server.
Video Tools
Password Tools
Password Generator
Secure Password Generator
Generate secure random passwords with customizable options.
TOTP Token Generator
Dynamic OTP Codes
Generate time-based one-time password (TOTP) codes.
WiFi QR Code Generator
Scan to Connect โ No Typing
Generate a WiFi QR code that lets phones connect instantly by scanning โ no typing needed.
Finance Tools
Mortgage Calculator
Monthly Payment & Amortization
Calculate monthly mortgage payments, total interest, and full amortization schedule.
ROI Calculator
ROI, CAGR & Profit Calculator
Calculate return on investment (ROI), net profit or loss, return multiplier, and annualized CAGR.
Profit Margin Calculator
Gross Margin, Markup & Pricing
Calculate gross profit margin, markup percentage, and selling price from cost and revenue.
Break-Even Calculator
Break-Even Units, Revenue & Margin of Safety
Calculate the break-even point in units and revenue. Find how many units you need to sell to cover fixed and variable costs.
Salary After Tax Calculator
US Federal + State Tax, Take-Home Pay (2024)
Calculate your US salary after federal income tax, Social Security, Medicare, and state taxes. Shows monthly, bi-weekly, and hourly take-home pay.
Exchange Rate
Live Currency Converter
Real-time currency exchange rate converter. Convert between major world currencies with live rates.
SaaS Churn Calculator
Churn Rate ยท MRR Churn ยท NRR ยท Revenue Impact
Calculate SaaS churn rate, MRR churn, Net Revenue Retention (NRR), and revenue impact from customer loss.
LTV Calculator
LTV ยท CAC ยท LTV:CAC Ratio ยท Payback Period
Calculate Customer Lifetime Value (LTV), CAC, LTV:CAC ratio, and payback period for your SaaS or subscription business.
Loan Amortization Calculator
Monthly Payment ยท Total Interest ยท Amortization Table
Calculate loan amortization schedule with monthly payment, total interest, and full payment breakdown. Supports extra payments.
Car Insurance Calculator
Estimate Only โ Not an Actual Insurance Quote
Estimate your car insurance premium based on vehicle value, driver age, driving record, state, and coverage type. For educational purposes.
Compound Interest Calculator
Savings ยท Investment ยท Monthly Contributions ยท Growth Projection
Calculate compound interest growth over time. See how your savings or investments grow with different rates, compounding frequencies, and monthly contributions.
Credit Card Payoff Calculator
Payoff Date ยท Total Interest ยท Fixed vs Minimum Payment
Calculate how long it takes to pay off your credit card debt. Compare fixed payment vs minimum payment to see how much interest you can save.
Tax Bracket Calculator
2024 Federal Brackets ยท Effective Rate ยท Marginal Rate ยท Standard Deduction
Calculate your 2024 US federal income tax using official tax brackets. See your effective tax rate, marginal rate, and tax breakdown by bracket.
Retirement Calculator
Compound Growth ยท 4% Rule ยท Inflation-Adjusted
Plan your retirement savings with compound growth projections. See your projected nest egg, monthly income using the 4% rule, and how long your savings will last.
Net Worth Calculator
Assets โ Liabilities ยท Debt Ratio ยท Financial Health
Calculate your net worth by listing all assets and liabilities. Track your financial health with debt-to-asset ratio and visual breakdown.
Invoice Generator
Line Items ยท Tax ยท Print / PDF ยท No Account Needed
Create professional invoices instantly. Add line items, tax, and notes โ then print or save as PDF. No account required, fully private.