Zero‑Width Character Detector - Online Find Hidden Unicode
Paste text and instantly see if it contains hidden zero‑width characters often used in steganography. Reveal invisible payloads.
UD5 Toolkit
Paste text and instantly see if it contains hidden zero‑width characters often used in steganography. Reveal invisible payloads.
Enter a URL and extract the font stacks and web font URLs used on that page. Quick typography research.
Check if the current page can be loaded offline by examining the service worker cache. Developer tool for PWAs.
Point your camera at an object and see the dominant color in real time. Click to copy the hex. Fun tool for designers.
Upload an image and instantly see its most dominant color as a hex swatch. Uses color quantization. Local.
Detect your current screen resolution, viewport dimensions, and device pixel ratio. Useful for responsive design testing. No data collection.
Drop a file to see its MIME type and the first few magic bytes (hex and ASCII). No upload, works instantly.
See the fundamental frequency (pitch) of your voice in real time using auto‑correlation. For singers and speech training. No upload.
Analyze text for subjective and emotionally charged words. Helps identify potential bias in writing. Purely heuristic, local operation.
Upload a text file to detect its character encoding (UTF-8, ISO-8859-1, etc.) and BOM presence. Runs entirely in your browser.