All Tools.
One Place.
Converters, generators, analysis tools – many running directly in your browser, no account or upload required.
Privacy
Browser tools process everything locally – no data leaves your browser.
Instant & free
No account needed for browser tools. Just open and go.
Server Tools
Powerful workers for video and audio processing – available after signing in.
Popular tools
Encrypted File Transfer
Share files E2E-encrypted (ECDH + AES-GCM) via WebRTC P2P – no server upload
aioCAD
Interactive 3D construction tool: place basic shapes, combine them, export as STL.
3D Viewer
View 3D models: rotate and inspect STL, OBJ, PLY, GLTF, GLB and 3MF in the browser.
Audio Converter
Conversion runs directly in the browser – no data is uploaded
🎵Media & ImageView all 36 tools →
aioCAD
Interactive 3D construction tool: place basic shapes, combine them, export as STL.
3D Viewer
View 3D models: rotate and inspect STL, OBJ, PLY, GLTF, GLB and 3MF in the browser.
Audio Converter
Conversion runs directly in the browser – no data is uploaded
Background Remover
Remove background from images – directly in the browser
Image Crop & Resize
Scale, crop and process images via canvas – in the browser
Image Converter
PNG · JPEG · WebP · AVIF · BMP · GIF – convert directly in the browser
Audio Trimmer
Trim audio files – freely choose start & end, directly in the browser
Image Compressor
Compress images losslessly or with quality level – in the browser
📝Text & DocumentsView all 28 tools →
Word & Character Counter
Count words, characters, sentences and paragraphs in text
ASCII Table
All 128 ASCII characters with decimal, hex, binary values and names – searchable
CSV to SQL Converter
Convert CSV files to SQL INSERT statements
HTTP Status Codes
All HTTP status codes with description and category
ASCII Art Generator
Convert text to ASCII art fonts – directly in the browser
CSV Viewer & Editor
Load CSV, display as table, sort, search and edit
HTML Entity Encoder
Encode and decode HTML special characters
JSON ↔ YAML ↔ TOML
Convert between JSON, YAML and TOML
⚙️Developer ToolsView all 43 tools →
File Transfer Duration Calculator
Calculate the expected transfer duration for files at a given bandwidth
Regex Tester
Interactively test and debug regular expressions
SemVer Bumper
Bump and compare semantic version numbers
Base64 & URL Encoder
Encode/decode Base64 and URL parameters – runs in the browser
Diff Checker
Compare two texts line by line – runs in the browser
IEEE-754 Float Visualizer
Interactively analyze Float32/Float64 bits, sign, exponent and mantissa
JSON Formatter & Validator
Format, validate and minify JSON – runs in the browser
JSON to TypeScript
Convert JSON to TypeScript interfaces – in the browser
🔒Security & CryptographyView all 15 tools →
Encrypted File Transfer
Share files E2E-encrypted (ECDH + AES-GCM) via WebRTC P2P – no server upload
CRC Calculator
CRC-8, CRC-16, CRC-32 from text or hex bytes
JWT Generator
Create and sign JSON Web Tokens with HS256/RS256
Password Generator
Generate secure passwords with configurable character set
Password Strength Checker
Analyze the strength and security of a password
TOTP Generator
Generate time-based one-time passwords (RFC 6238) in the browser
AES-256 Encryption
Encrypt and decrypt text with AES-256-GCM + PBKDF2 in the browser
Bcrypt Generator
Hash and verify passwords with bcrypt
🌐Network & InfrastructureView all 17 tools →
MAC Vendor Lookup
IEEE OUI: Identify manufacturer from MAC address
Cron Expression Generator
Visually create and validate cron expressions
IP Geolocation
Look up location, ISP and metadata of an IP address
My IP
Show your currently visible IP address and proxy headers
Subnet Calculator (CIDR)
Calculate IPv4 subnet mask, network address, broadcast and host range
DNS Lookup
A · AAAA · MX · TXT · NS · CNAME · SOA · CAA via Cloudflare DoH
DNS Multi-Resolver
Query DNS records from 6 public resolvers and check consistency – Guest: 1 request/minute
IP Lookup (ASN)
Resolve IPv4 address to ASN, country and IP range
🔌Hardware & MakerView all 36 tools →
Modbus Parser
Create Modbus RTU frames, check CRC-16 and decode request/response fields
Solar System Simulator
Annual simulation: generation, storage, grid feed-in and self-sufficiency calculation
Teensy 4.1 Pinout
ARM Cortex-M7 · 600 MHz · 55 Digital · 18 Analog · CAN · USB Host
Arduino Nano Pinout
ATmega328P · 22 Digital (incl. A0–A5) · 8 Analog · 6 PWM · A6/A7 analog only
Arduino Uno Pinout
ATmega328P · 14 Digital · 6 Analog · 6 PWM · UART / SPI / I²C
ESP32 DevKit v1 Pinout
Xtensa LX6 Dual-Core · 240 MHz · 3.3V I/O · 34 GPIO · ADC/DAC/Touch · WiFi + Bluetooth
ESP8266 NodeMCU v3 Pinout
Tensilica L106 · 80/160 MHz · 3.3V I/O · 11 usable GPIO · 1x ADC · WiFi 802.11 b/g/n
I²C Addresses
7-bit I²C addresses of common components and write address calculation
🔢Mathematics & FinanceView all 19 tools →
Rule of Three Calculator
Calculate direct and inverse rule of three
Compound Interest Calculator
Final capital, annual breakdown, optional deposits
Date Difference & Age Calculator
Calculate the difference between 2 dates or exact age
Loan Calculator
Calculate monthly payment, total interest and amortization schedule for annuity loans
Percentage Calculator
Calculate percentages, percentage rates and changes
VAT Calculator
Calculate value-added tax: net ↔ gross with 19%, 7% or a custom rate – including reverse calculation from the tax amount
BMI & Calorie Calculator
BMI category, BMR (Harris-Benedict) and daily calorie needs (TDEE)
Countdown Timer
Count down to a date & time – with fullscreen, themes and a shareable URL (all settings in the link)
🎲Games & PuzzlesView all 4 tools →
Dice Roller & Coin Flip
Roll dice online (d4–d100, up to 20 dice) and flip coins – with true randomness and history
Crossword Generator
Generate a playable crossword from a pool of topics – solve online or print as PDF.
Wheel of Names
Enter names, spin the wheel, pick a winner – great for raffles, classrooms and team decisions. Shareable via URL.
Random Group Generator
Randomly and fairly split names into groups – by number of groups or group size, great for classrooms and workshops