Illuminance Converter - Online Lux & Foot-Candle Tool
Convert illuminance units: lux, foot-candle, phot. Useful for lighting design and photography. Quick and free.
UD5 Toolkit
One‑click photo fix — instantly improve brightness, contrast & sharpness
Drop your image here or click to browse
Supports JPG, PNG, WebP — Max 20MB
or Ctrl+V to paste
Convert illuminance units: lux, foot-candle, phot. Useful for lighting design and photography. Quick and free.
Paste rich text and clean it to plain text. Normalize line endings and whitespace. Prepare for code or databases.
Create QR codes with custom colors, gradients, and an embedded logo. Download as high-quality PNG/SVG. Fully local generation.
Add Vietnamese diacritics to plain text by selecting tones. Remove them from text. For language learners.
Remove all EXIF, IPTC, and XMP metadata from your photos. Strip GPS location. Protect your privacy before upload.
Upload a logo to embed in the center of a QR code. High error correction so it still scans. Download PNG/SVG.
Eliminate duplicate lines from text instantly. Keep only unique lines or see which lines were removed. Handy for cleaning email lists and raw data.
Click on a fold technique (spiral, crumple) and see a predicted color pattern. Print folding guide.
Generate a QR code with a custom icon or logo in the center. Choose error correction level. Download as high‑res PNG.
Create high-quality QR codes for URLs, text, Wi-Fi, and contact info. Customize colors and size. Download as PNG/SVG. No data leaves your device.
Press any key to see the complete KeyboardEvent properties: key, code, keyCode, modifiers. Indispensable for game & shortcut developers.
Load an audio file and visually trim it by dragging handles on the waveform. Export the trimmed clip. All local.
Convert popular pet bird ages (budgie, cockatiel, macaw) to human years. Lifespan reference included. Fun educational tool.
Generate a pop signal to determine if speakers are wired in phase. Quick stereo test.
Enter a UPC or EAN barcode number and validate the check digit. See if it's a real product code. Local calculation.
Complete a series of visual pattern puzzles and get a fun estimated score. Purely for entertainment. No data collected.
Set a meditation session with singing bowl sounds at start, interval chimes, and end bell. No ads, pure serenity.
Convert any text to proper sentence case. Capitalize the first letter after every period, question mark, or exclamation.
Select meat type and enter weight to get recommended cooking time and temp. Built-in timer with alarm.
Encrypt and decrypt messages using the classic Caesar cipher with configurable shift key. Fun for puzzles and basic cryptography lessons. Entirely browser-based.
Easily apply ROT13 cipher to obfuscate or reveal text. A classic letter substitution cipher that works bidirectionally. Purely client-side processing.
Generate a self‑signed X.509 certificate and private key for local development. All created in your browser. No server involved.
Apply a classic Caesar shift cipher with any key. Encrypt or decrypt text instantly. Brute force option included.
Interactive soprano recorder chart showing which holes to cover for each note. Switch between baroque and German fingering.
Identify countries from their flags. Multiple difficulty levels and regions. Track your high score. Educational geography game. Works offline.
Look up quick facts about any country: capital, population, currency, flag, and continent. Static data, fast search. Great for travel and education.
Create a mosaic where many small tiles are replaced with solid colors from a palette. Pixel art style. Adjust grid size. Local canvas.
Upload two overlapping photos and automatically stitch them into a simple panorama. Works locally with canvas.
View the individual red, green, and blue channels of an image as grayscale. Photographer and developer tool.
Turn your photo into a black‑and‑white charcoal or chalk drawing. Adjust texture and contrast. Artistic.