# PinoutDB Web Tools & Engineering Calculators

> PinoutDB Tools (https://pinoutdb.org/en/tools) is a privacy-first suite of 80+ high-performance developer utilities, electronics engineering calculators, universal file converters, and media inspectors. All tools execute 100% locally in the browser with zero server uploads, zero tracking, and instant offline capability.

## Canonical Resources
- Web Tools Directory (English): https://pinoutdb.org/en/tools
- Web Tools Directory (German): https://pinoutdb.org/tools
- Full Technical Reference & Formulas: https://pinoutdb.org/tools/llms-full.txt
- Global PinoutDB LLM Reference: https://pinoutdb.org/llms.txt

## Tools by Category

### Code
- [ASCII / HEX Converter](https://pinoutdb.org/en/tools/ascii-hex): Convert text to hexadecimal and back.
- [Base64 Encoder / Decoder](https://pinoutdb.org/en/tools/base64): Encode and decode text or data to Base64.
- [BIN HEX DEC OCT Converter](https://pinoutdb.org/en/tools/converter): Convert numbers between binary, hexadecimal, decimal, and octal, and toggle individual bits.
- [CSS Formatter / Beautifier](https://pinoutdb.org/en/tools/css-formatter): Format CSS code for better readability or minify it for production.
- [Font Glyph Inspector](https://pinoutdb.org/en/tools/font-inspector): Inspect font files (TTF, WOFF, WOFF2) to view contained characters (glyphs), unicode ranges, and metadata.
- [HTML Encoder / Decoder](https://pinoutdb.org/en/tools/html-encoder): Convert special characters to HTML entities and back. Important for web development and security.
- [JSON Formatter / Minifier](https://pinoutdb.org/en/tools/json-formatter): Format or minify JSON data.
- [Regex Tester](https://pinoutdb.org/en/tools/regex-tester): Test your regular expressions (Regex) in real-time. Supports match highlighting.
- [Syntax Highlighter](https://pinoutdb.org/en/tools/syntax-highlighter): Auto-detect and highlight code syntax. Export as SVG or Word.
- [URL Encoder / Decoder](https://pinoutdb.org/en/tools/url-encoder): Safely encode and decode URL parameters.
- [URL Parser](https://pinoutdb.org/en/tools/url-parser): Parse URLs into their components: Protocol, Host, Path, Query Parameters, and more.
- [WiFi QR Code Generator](https://pinoutdb.org/en/tools/wifi-qr): Create QR codes to easily connect guests to your WiFi network.

### Files
- [3D Viewer](https://pinoutdb.org/en/tools/3d-viewer): Supported file types: STL, STEP, STP, OBJ, 3MF, GLTF, GLB, PLY, FBX, DAE, IGES.
- [All-In-One File Converter](https://pinoutdb.org/en/tools/file-converter): Universal local converter for images, audio, video, binaries, 3D/CAD, documents, and data.
- [Binary Strings Extractor](https://pinoutdb.org/en/tools/strings-extractor): Extract printable ASCII and Unicode (UTF-16LE) strings from binary files (.exe, .dll, .bin, firmware).
- [CSV Viewer & Converter](https://pinoutdb.org/en/tools/csv-viewer): Open CSV files online, search through them, and convert them to JSON or XML.
- [File Analyzer](https://pinoutdb.org/en/tools/file-analyzer): Analyze files: View MIME types, file size, modification date, and hex headers.
- [Fixed Sample Files](https://pinoutdb.org/en/tools/sample-files): Download deterministic sample files of fixed sizes (1KB to 1GB).
- [Hex File Editor & Analyzer](https://pinoutdb.org/en/tools/hex-editor): Hex and binary editor. View data in HEX, DEC, BIN, or OCT, navigate with customizable page sizes (up to 16 KB) and row widths, inspect values with the data inspector, and edit bytes.
- [ICS Calendar Viewer & Creator](https://pinoutdb.org/en/tools/ics-viewer): Open, inspect, and create .ics / iCalendar files directly in your browser.
- [Log File RegExp Filter](https://pinoutdb.org/en/tools/log-filter): Upload local log files and filter them in real-time using regular expressions or keywords in a color-coded terminal console.
- [PDF Tools (Merge, Split & Rotate)](https://pinoutdb.org/en/tools/pdf-merger): Merge multiple PDFs, reorder, rotate, or delete individual pages, and export custom page ranges.
- [Random File Generator](https://pinoutdb.org/en/tools/random-file): Generate test files with random data in customizable sizes (up to 2 GB).
- [Zip Archive Builder](https://pinoutdb.org/en/tools/archive-builder): Create Zip files directly in your browser. Upload files and download the archive. No data leaves your computer.

### Units
- [Battery & EV Charge Time Calculator](https://pinoutdb.org/en/tools/battery-charge-calculator): Calculate charge time, finish time, and costs for EVs and batteries - with charge curve and live tracking.
- [Calendar Week Calculator](https://pinoutdb.org/en/tools/calendar-week): Show current calendar week (CW) and convert date to calendar week.
- [Capacitor Charge Time Calculator](https://pinoutdb.org/en/tools/capacitor-charge-time): Calculate the RC time constant and charge/discharge curve of a capacitor through a resistor, including voltage over time, time to reach a target level, and a visual curve.
- [Cron-Job Visualizer](https://pinoutdb.org/en/tools/cron-visualizer): Create Cron jobs interactively and visualize execution times on a calendar and timeline.
- [Date Calculator](https://pinoutdb.org/en/tools/date-calculator): Calculate the duration between two dates or add/subtract days from a date.
- [I²C Pull-up & UART Baud Rate Calculator](https://pinoutdb.org/en/tools/i2c-uart-calculator): Calculate I²C pull-up resistors from bus capacitance and speed, or find the UART baud rate error for a given MCU clock frequency (ESP32, Arduino, STM32).
- [Percentage Calculator](https://pinoutdb.org/en/tools/percentage-calculator): Calculates percentage value, rate, percentage change, discount with cash discount, VAT, and tip splitting.
- [Pomodoro Timer](https://pinoutdb.org/en/tools/pomodoro-timer): A simple Pomodoro timer for productivity and regular breaks.
- [Resistor Calculator (Color Code & SMD)](https://pinoutdb.org/en/tools/resistor-calculator): Calculate resistance values interactively from 4, 5, and 6 band color codes, convert values back to color codes, or decode SMD markings (3-digit, 4-digit & EIA-96).
- [Stopwatch](https://pinoutdb.org/en/tools/stopwatch): Precise stopwatch with lap times.
- [Timezone Planner](https://pinoutdb.org/en/tools/timezone-planner): Find ideal meeting times and plan global appointments by overlapping multiple timezones.
- [Unix Timestamp Converter](https://pinoutdb.org/en/tools/timestamp): Convert Unix timestamps to human-readable dates and vice versa.
- [Voltage Divider Calculator](https://pinoutdb.org/en/tools/voltage-divider): Calculate output voltage, quiescent current, and power dissipation of voltage dividers or automatically find the best E12/E24/E96 resistor pairs for your target voltage.

### Image
- [ASCII Art Generator](https://pinoutdb.org/en/tools/ascii-generator): Transform images into retro ASCII art.
- [Aspect Ratio Calculator](https://pinoutdb.org/en/tools/aspect-ratio-calculator): Calculates width or height based on an aspect ratio.
- [Color Detector & Camera Eyedropper](https://pinoutdb.org/en/tools/color-detector): Real-time color detection via camera or image: Pixel-exact sampling and area average.
- [Color Picker & Converter](https://pinoutdb.org/en/tools/color-picker): Pick colors and convert between Hex, RGB, HSL, and CMYK.
- [Digital Signature Generator](https://pinoutdb.org/en/tools/signature-generator): Creates digital signatures via freehand drawing, typed text, or photo scan as transparent PNG or SVG.
- [Exif Data Viewer](https://pinoutdb.org/en/tools/exif-viewer): Read metadata such as camera model, exposure settings, timestamp, and GPS coordinates from your photos.
- [Favicon Generator](https://pinoutdb.org/en/tools/favicon-generator): Generate a complete favicon package (ICO, PNG sizes, Apple touch icon, web manifest) from an image, text, or emoji, including ready-to-use HTML code, as a ZIP download.
- [HEIC Converter](https://pinoutdb.org/en/tools/heic-converter): Convert HEIC/HEIF images easily to JPG or PNG directly in your browser.
- [Image Batch Processor](https://pinoutdb.org/en/tools/image-batch-processor): Resize, crop, and convert multiple images at once.
- [Image Compressor](https://pinoutdb.org/en/tools/image-compressor): Compress and resize images (JPEG, PNG, WebP) while maintaining visual quality.
- [Image to Palette Extractor](https://pinoutdb.org/en/tools/palette-extractor): Extract a color palette from any image.
- [Pixel Art Maker](https://pinoutdb.org/en/tools/pixel-art-maker): Create simple 16x16 pixel art and export it as PNG, SVG, or CSS.
- [Pixel-Art Sprite Animator](https://pinoutdb.org/en/tools/sprite-animator): Load a pixel art sprite sheet, slice it into frames, and animate it in a customizable loop.
- [QR Code Generator](https://pinoutdb.org/en/tools/qr-generator): Quickly create QR codes for text or links, directly in your browser.
- [Screenshot Tool](https://pinoutdb.org/en/tools/screenshot-tool): Take screenshots of windows, screens, or browser tabs directly online.
- [Sprite Sheet Slicer](https://pinoutdb.org/en/tools/sprite-slicer): Slice sprite sheets automatically into individual images. Define rows, columns, or fixed sizes and download everything as a ZIP.

### Audio
- [Audio Recorder & Frequency Meter](https://pinoutdb.org/en/tools/audio-recorder): Microphone recording with live spectrum analyzer, VU peak meter, pause/resume, and export to WAV, MP3, or WebM.
- [Audio Trimmer](https://pinoutdb.org/en/tools/audio-trimmer): Trim audio files easily in your browser. Visualize the waveform and export the selection as WAV or MP3.
- [Metronome](https://pinoutdb.org/en/tools/metronome): A precise metronome with different time signatures and visual display.
- [MIDI Viewer](https://pinoutdb.org/en/tools/midi-viewer): Read MIDI signals from your connected input device/keyboard in real-time.
- [Morse Code Audio Translator](https://pinoutdb.org/en/tools/morse-translator): Translate text to Morse code, play the audio signals, and visualize them with a flashing signal lamp.
- [Signal Generator](https://pinoutdb.org/en/tools/signal-generator): Generate various test tones and frequencies (Sine, Square, Noise).
- [Synthesizer](https://pinoutdb.org/en/tools/synthesizer): Modular software synthesizer with oscillators, filter, ADSR faders, LFO, effects, MIDI, and keyboard.

### Video
- [Screen Recorder](https://pinoutdb.org/en/tools/screen-recorder): Record your screen, windows, or browser tabs. No download required.
- [Video Editor](https://pinoutdb.org/en/tools/video-editor): Trim and sequence video clips, insert images, add music and mix audio. Export as MP4 or WebM.
- [Video Player](https://pinoutdb.org/en/tools/video-player): Play video files or URLs. Features: Volume boost, playback speed, screenshot and more.
- [Video-to-GIF Converter](https://pinoutdb.org/en/tools/video-to-gif): Convert short videos (MP4, WebM) client-side directly in the browser into animated GIFs with customizable FPS and resolution.
- [Webcam Recorder](https://pinoutdb.org/en/tools/webcam-recorder): Online camera tool: Take photos and record videos directly via your webcam.

### Web
- [Chmod Calculator](https://pinoutdb.org/en/tools/chmod-calculator): Easily calculate Linux file permissions (chmod) in numeric and symbolic formats.
- [DNS-over-HTTPS Lookup](https://pinoutdb.org/en/tools/dns-lookup): Find the IP address behind a domain and query DNS records (A, AAAA, MX, TXT) securely over HTTPS.
- [Flexbox Playground](https://pinoutdb.org/en/tools/flexbox-playground): Interactive guide to CSS Flexbox properties.
- [JWT Decoder](https://pinoutdb.org/en/tools/jwt-decoder): Decode JSON Web Tokens (JWT) to view header, payload, and signature.
- [Keycode Info](https://pinoutdb.org/en/tools/keycode-info): Shows information about pressed keys.
- [Meta Tag Generator](https://pinoutdb.org/en/tools/meta-tag-generator): Generate HTML SEO meta tags for your website.
- [Subnet & CIDR Calculator](https://pinoutdb.org/en/tools/subnet-calculator): Calculate network boundaries, IP address ranges, netmasks, and usable hosts for IPv4.

### Text
- [ASCII Flow Diagram Designer](https://pinoutdb.org/en/tools/ascii-diagram): Draw flowcharts, boxes, arrows, and text using plain text characters (ASCII) directly in your web browser.
- [Case Converter](https://pinoutdb.org/en/tools/case-converter): Convert text between Uppercase, Lowercase, CamelCase, and more.
- [Diff & Patch Generator](https://pinoutdb.org/en/tools/diff-generator): Compare two texts line-by-line, visualize differences, and download the output as a patch file.
- [Local OCR](https://pinoutdb.org/en/tools/ocr-tool): Extract text from images directly in your browser. Your data never leaves your computer. Supports multiple languages.
- [Lorem Ipsum Generator](https://pinoutdb.org/en/tools/lorem-ipsum): Generate placeholder text for your designs.
- [Markdown Editor](https://pinoutdb.org/en/tools/markdown-editor): Write Markdown and see the preview instantly.
- [Search & Replace](https://pinoutdb.org/en/tools/search-replace): Search and replace text online. Supports regular expressions (regex) and case sensitivity.
- [Text Diff Checker](https://pinoutdb.org/en/tools/text-diff): Compare two text contents and see what changed between them.
- [Word Counter](https://pinoutdb.org/en/tools/word-counter): Free online word counter and character counter. Count words, characters, sentences, and paragraphs in real-time.

### Security
- [Certificate Checker](https://pinoutdb.org/en/tools/certificate-extractor): Analyze and extract signatures and certificates from executable files (.exe, .efi) or certificate files.
- [Hash & File Checksum](https://pinoutdb.org/en/tools/hash-generator): Generate hashes from text or calculate file checksums (MD5, SHA256...) directly in your browser.
- [Password Generator](https://pinoutdb.org/en/tools/password-generator): Generate strong, secure random passwords directly in your browser.
- [UUID Generator](https://pinoutdb.org/en/tools/uuid-generator): Generate secure random UUIDs (Version 4). Bulk generation supported.

### System
- [Controller Tester](https://pinoutdb.org/en/tools/controller-tester): Supports PlayStation (PS5, PS4), Xbox (Series, One, 360), Nintendo Switch, and generic USB/Bluetooth gamepads.
- [Device Info](https://pinoutdb.org/en/tools/device-info): Displays detailed information about your current device, browser, screen, and more.
- [EDID Viewer](https://pinoutdb.org/en/tools/edid-viewer): Decode and analyze 128 byte EDID binary data to view supported timings, texts, and settings.
- [Random Generator](https://pinoutdb.org/en/tools/random-generator): Well, the name pretty much says it all, right?
- [Serial Terminal](https://pinoutdb.org/en/tools/serial-terminal): Free web-based Serial Terminal and serial monitor directly in your browser. Connect via Web Serial API to any COM port, USB-UART adapter, or serial interface, send commands, and analyze data in real time without installation.