Tools.
Small browser tools, utilities, and experiments that started from real work.
Built on didof.dev
Wrap Studio
Place an image or video in an animated GLSL gradient layout, configure optional text, and export a square, portrait, or landscape composition locally.
Fluid Studio
Build layered animated GLSL gradients, tune materials and motion, then export a high-resolution PNG, portable scene JSON, or standalone WebGL page.
TypeMatter
Design animated shader typography with semantic fallback text, then export a transparent PNG, scene JSON, embed code, or standalone HTML component.
TypeMatter Flow
Build directional WebGL fluid simulations around typographic obstacles, tune the solver and material, and export standalone HTML or high-resolution PNG.
Sunset Radiance Field
Estimate Earth's radius from a clear sea-horizon photo using camera height, lens calibration, horizon dip, and explicit uncertainty controls.
Conway’s Game of Life
Build cells and classic patterns in an interactive Conway’s Game of Life simulator with playback, single-step history, speed, zoom, and themes.
Wasmize Lite
Analyse marked numeric JavaScript functions, compile a deliberately narrow subset to WebAssembly, inspect wrappers, and export a prototype Vite scaffold.
CSV Empty-Cell Row Cleaner
Remove every CSV data row containing an empty cell locally, compare JavaScript streaming with Go WebAssembly, and download the cleaned file.
Shader Water Generator
Create an animated Three.js water surface, tune wave displacement, noise, colors, opacity, shininess, and Fresnel light, then export standalone HTML.
Browser Fingerprint Signals Demo
See how browser-exposed hardware hints, offline audio output, and WebGL pixels can become a local fingerprint signal in an educational demo.
Browser Extension Fingerprinting Demo
Learn how exposed browser-extension resources can become fingerprint signals through fake targets and optional user-supplied, local-only checks.
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Video Trimmer
Trim and export as MP4 with filmstrip timeline.
Video Compressor
Reduce file size with 5 quality presets.
Video Converter
Convert between MP4, WebM, and MKV.
Video Rotator
Rotate 90°, 180°, or 270° and export.
Video Cropper
Interactive crop with aspect ratio presets.
Video Resizer
Downscale to 480p, 720p, or 1080p.
Audio Extractor
Extract audio as AAC, Opus, or WAV.
Video Watermarker
Add text or image watermark to every frame.
Webcam Recorder
Record webcam + mic, trim, export MP4.
Screen Recorder
Record screen or tab with optional mic.
Image Compressor
Reduce size as JPEG, WebP, or PNG.
Image Converter
Convert between JPEG, WebP, and PNG.
Image Rotator
Rotate 90°, 180°, or 270° and download.
SRT Validator
Check .srt files for timestamp and index errors.
VTT Validator
Verify .vtt file syntax and cue formatting.
Palette Extractor
Extract colors from images via K-Means clustering.
Video Speed Changer
Speed up or slow down any video from 0.5x to 2x.
Powered by LinkPreview.ai
Free Carousel Editor
Design pro-grade Instagram and LinkedIn carousels in your browser. 16 templates, 4 packs, 12 themes, brand kit, PDF + PNG export. 100% free, zero sign-up.
WhatsApp Link Generator
Create a custom WhatsApp 'Click to Chat' wa.me link and QR code instantly. Pre-fill your message, copy the HTML snippet, and connect with customers for free.
Background Remover
Remove the background from any image instantly for free. Powered by AI, runs entirely in your browser — no uploads, no accounts, no watermarks.
Emergency (ICE) QR Code
Generate a secure, offline medical ID for your helmet, wallet, or keychain. Vital info for first responders, zero data stored on servers.
Luggage & Property Tag
Protect your bags without broadcasting your home address. Generate a secure 'If Found' QR code that works offline in airports anywhere.
Image to Offline QR Codes
Turn any photo into a sequence of secure, scannable QR codes. Share images across air-gapped devices without WiFi, Bluetooth, or the cloud.
Digital Business Card (vCard)
Generate a professional, privacy-first QR business card. No monthly fees, no tracking. Scans directly to phone contacts.