UD5 Toolkit
Virtual Pet Rock - Online Minimal No‑Care Companion
Adopt a virtual pet rock. It sits there. Sometimes you can polish it or give it a name. The low‑maintenance pet you always wanted.
Photo Montage (Ken Burns) - Online Animated Effect
Drag & drop images onto the canvas, click the + button, or paste (Ctrl+V) to add photos
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Skip Link Validator - Online See Bypass Blocks
Check if your site has a visible and functional skip navigation link. Key for keyboard‑only users.
HTML Escape/Unescape - Online Encode Special Characters
Escape HTML special characters to prevent XSS attacks, or unescape HTML entities back to original text. Essential for web developers. Runs locally.
Spell with Military Alphabet - Online NATO Encoder
Enter any phrase and see it spelled letter by letter using the NATO phonetic alphabet. Copy ready for radio.
String to Escaped HTML - Online Protect Against XSS
Instantly convert plain text into HTML‑safe escaped characters for secure display in web pages. Prevent cross‑site scripting. All processing local.
Constraint Validation API Tester - Online Form Debug
Test required, pattern, minlength etc. See validity states and custom error messages. Learn browser‑native validation.
Unicode Property Regex Tester - Online \p{Script=Greek}
Test regular expressions with Unicode property escapes like \p{Emoji}. See matches live. Modern regex power.
Video to GIF Converter - Online Local Extract Animated Clip
Convert a short video clip to GIF directly in the browser. Trim, resize, and adjust frame rate. No upload required, uses built‑in video decoder. Perfect for memes.
Video Audio Merger/Separator - Online Replace or Remove Soundtrack
Remove the original audio from a video and attach a new soundtrack. Or extract audio. All processed locally.
Online Video Reverser - Play & Save Backwards
Reverse any short video clip and download the backward version. Fun for creative effects. Browser‑based.
Online Video Resizer - Crop & Scale Locally
Resize a video by cropping to a new aspect ratio or scaling up/down. Apply and download the result. Browser‑based.
Webcam Recorder - Online Capture Video & Save
Use your webcam to record a video clip and download it as WebM. Adjust resolution. Works offline. Privacy‑friendly.
Video Speed Controller - Online Slow Motion & Timelapse
Play any video at 0.25x to 4x speed. Save the modified speed as a new file. Perfect for analysis or fun.
Video to GIF Maker - Online Animated Clip Creator
Trim a video clip and convert it into an animated GIF. Adjust frame rate and size. All local. No watermark.
Video to MP3 Extractor - Online Save Audio from Video
Extract the audio track from any video and save as MP3 or WAV. No re‑encoding; fast demux. Client‑side only.
Audio/Video Sync Tester - Online Lip Sync Check
Load a video and visually check if audio aligns with lips. Use frame‑by‑frame stepping. Debug playback issues.
Online Video Trimmer - Cut & Save Clips Locally
Set start and end times for a video and trim it without re-encoding. Download the clip. Pure browser.
Online Video Format Converter - MP4, WebM, AVI in Browser
Convert video files between common formats using FFmpeg WASM. No upload required; all processing stays in your browser.
Video Keyframe Extractor - Online Capture I‑Frames
Seek through a video and extract only keyframes as JPEGs. Perfect for generating thumbnails. Canvas‑based.
Video Subtitle Burner - Online Hardcode SRT into Video
Merge an SRT subtitle file onto a video directly in the browser. Preview and download the resulting video. All local.
High Quality Video to GIF - Online Optimized Converter
Convert short video clips to GIFs with adjustable resolution, frame rate, and dithering. Preview before download. All local.
Webcam Recorder - Online Capture Video & Save
Use your webcam to record a video clip and download it as WebM. Adjust resolution and see a preview. Works offline.
Video Metadata Viewer - Online Check Codec, Bitrate & Size
Drop a video file and instantly see its container format, codec(s), resolution, duration, and bitrate. Browser‑based, no upload.
Picture‑in‑Picture Tester - Online Float Video Anywhere
Open a test video in Picture‑in‑Picture mode. Control entering and leaving PiP. Copy the code snippet for your own app.
Instant Image Slideshow - Online Local Photo Player
Select a folder of images and start a full‑screen slideshow right in your browser. Adjust interval and transition. No upload.
Video to Audio Extractor - Online Save MP3 from MP4
Extract the audio track from any video file and download it as MP3 or WAV. Works offline; no server upload.
Video to Animated WebP - Online Free Converter
Select a short video and convert it to an animated WebP image for faster web loading. Adjust quality and size. Local only.
Video Multi‑Frame Grabber - Online Extract Still Strips
Take multiple evenly spaced screenshots from a video and combine them into a single filmstrip image. Local canvas.
Video Speed Controller - Online Slow Motion & Timelapse
Play any video at a custom rate (0.25x to 4x) without audio pitch change. Save the playback speed as a link. Local.
Image Morphing Slideshow - Online Two Face Transition
Upload two face portraits and watch a simple morphing transition. Not professional, but fun experiment with canvas.