Saqlainrnk Tool Hub Blog
Discover comprehensive guides and reviews for our completely free, no-login, browser-based tools.
Double Pendulum (Chaos Theory)
Simulate the unpredictable and chaotic motion of a double pendulum using RK4 numerical integration. Trace beautiful glowing paths.
Calculate Pi via Physics
Compute digits of Pi using 1D elastic collisions between sliding blocks. A mind-blowing demonstration of kinematics.
N-Body Gravity Sandbox
Build your own solar system. Drop planets and stars and watch them orbit based on Newton's law of universal gravitation.
Projectile Motion Simulator
Fire a cannon to calculate max height, range, and time of flight. Adjust angle, velocity, and gravity in real-time.
Optical Ray Tracing
Experiment with lenses and mirrors. Watch neon lasers bend in real-time using Snell's Law and geometry.
Digital Logic Simulator
Drag-and-drop circuit simulator for AND, OR, NOT gates, switches, and LEDs. Perfect for CS302 students.
ESP32 & Pin Tester
Virtual microcontroller board to safely test GPIO pin states, High/Low logic, and LED connections.
2D Physics & Gravity Engine
Interactive Matter.js sandbox. Tweak gravity, friction, and drop boxes into a realistic physics world.
J.A.R.V.I.S. Web Navigator
Navigate the entire site using voice commands. Powered by native Web Speech API.
Stark HUD UI Generator
Visually design and export Sci-Fi heads-up display UI elements using SVG & Tailwind.
The "Stark Armor" File Encryptor
Military-grade, offline file encryption and decryption using Web Crypto API.
Arc Reactor Benchmark
Stress test your CPU/GPU using a 3D animated Arc Reactor and get your Power Score.
Holographic Gesture Controller
Control the screen with your hands in the air using MediaPipe AI models.
Private Offline AI Engine
100% offline WebGPU-powered AI chatbot using WebLLM (Phi-3). Zero server logging.
AAC to FLAC
Convert AAC to FLAC seamlessly in your browser with zero data uploads.
AAC to M4R
Convert AAC to M4R seamlessly in your browser with zero data uploads.
AAC to MP3
Convert AAC to MP3 seamlessly in your browser with zero data uploads.
AAC to MP4
Convert AAC to MP4 seamlessly in your browser with zero data uploads.
AAC to WAV
Convert AAC to WAV seamlessly in your browser with zero data uploads.
AVI to GIF
Convert AVI to GIF seamlessly in your browser with zero data uploads.
AVI to MKV
Convert AVI to MKV seamlessly in your browser with zero data uploads.
AVI to MOV
Convert AVI to MOV seamlessly in your browser with zero data uploads.
AVI to MP3
Convert AVI to MP3 seamlessly in your browser with zero data uploads.
AVI to MP4
Convert AVI to MP4 seamlessly in your browser with zero data uploads.
GIF to MOV
Convert GIF to MOV seamlessly in your browser with zero data uploads.
GIF to WEBM
Convert GIF to WEBM seamlessly in your browser with zero data uploads.
M4A to MP3
Convert M4A to MP3 seamlessly in your browser with zero data uploads.
M4A to MP4
Convert M4A to MP4 seamlessly in your browser with zero data uploads.
M4A to WAV
Convert M4A to WAV seamlessly in your browser with zero data uploads.
MKV to AVI
Convert MKV to AVI seamlessly in your browser with zero data uploads.
MKV to GIF
Convert MKV to GIF seamlessly in your browser with zero data uploads.
MKV to MOV
Convert MKV to MOV seamlessly in your browser with zero data uploads.
MKV to MP3
Convert MKV to MP3 seamlessly in your browser with zero data uploads.
MKV to MP4
Convert MKV to MP4 seamlessly in your browser with zero data uploads.
MOV to AVI
Convert MOV to AVI seamlessly in your browser with zero data uploads.
MOV to GIF
Convert MOV to GIF seamlessly in your browser with zero data uploads.
MOV to MP3
Convert MOV to MP3 seamlessly in your browser with zero data uploads.
MOV to MP4
Convert MOV to MP4 seamlessly in your browser with zero data uploads.
MOV to WAV
Convert MOV to WAV seamlessly in your browser with zero data uploads.
MP4 to AVI
Convert MP4 to AVI seamlessly in your browser with zero data uploads.
MP4 to GIF
Convert MP4 to GIF seamlessly in your browser with zero data uploads.
MP4 to MOV
Convert MP4 to MOV seamlessly in your browser with zero data uploads.
MP4 to MP3
Convert MP4 to MP3 seamlessly in your browser with zero data uploads.
MP4 to OGG
Convert MP4 to OGG seamlessly in your browser with zero data uploads.
MP4 to WAV
Convert MP4 to WAV seamlessly in your browser with zero data uploads.
MP4 to WEBM
Convert MP4 to WEBM seamlessly in your browser with zero data uploads.
OGG to MP3
Convert OGG to MP3 seamlessly in your browser with zero data uploads.
OGG to WAV
Convert OGG to WAV seamlessly in your browser with zero data uploads.
Video to WebP
Convert Video to WebP seamlessly in your browser with zero data uploads.
WEBM to MOV
Convert WEBM to MOV seamlessly in your browser with zero data uploads.
WEBM to MP3
Convert WEBM to MP3 seamlessly in your browser with zero data uploads.
WEBM to MP4
Convert WEBM to MP4 seamlessly in your browser with zero data uploads.
Compress AVI
Advanced local video editing tool using FFmpeg WASM.
Compress MKV
Advanced local video editing tool using FFmpeg WASM.
Compress MOV
Advanced local video editing tool using FFmpeg WASM.
Compress Video
Advanced local video editing tool using FFmpeg WASM.
Extract Audio from Video
Advanced local video editing tool using FFmpeg WASM.
Mute Video
Advanced local video editing tool using FFmpeg WASM.
Resize Video
Advanced local video editing tool using FFmpeg WASM.
Trim Video
Advanced local video editing tool using FFmpeg WASM.
Add subtitles
Auto-generate accurate SRT subtitles for any video offline.
Audio to Text
Convert audio files into raw text transcripts locally using AI.
Convert video to text
Extract spoken words from videos into text files.
Summarize Podcast
Transcribe long podcasts and summarize the key points.
Transcribe Podcast
Get accurate word-by-word transcriptions of massive podcasts.
Video to Text
Accurately convert video dialogue to text in your browser.
YouTube Transcript Generator
Generate raw transcripts of YouTube videos by URL.
Youtube to Text
Convert YouTube videos to text using advanced AI Whisper models.
SVG to 3D Component
Convert a 2D SVG logo into a rotating 3D React Three Fiber component.
AI Face Smart Cropper
Automatically detects faces to center crops for 10 social formats.
Multi-Cam Screen Recorder
Record screen & circular webcam simultaneously. Zero uploads.
App Icon Generator
Instantly generate all iOS and Android icon sizes from a single image.
CSS/SVG Section Divider
Create beautiful wavy, angled, or spiky dividers for landing pages.
E-commerce Mockup Generator
Overlay your designs on T-shirts and digital frames instantly.
Seamless SVG Pattern Maker
Turn any shape into a seamless, repeating background pattern.
Typography & Font Tester
Test and pair English and Urdu fonts in real-time.
Code to Image Beautifier
Turn code snippets into beautiful, shareable Mac-style images.
Video to GIF Converter
Convert MP4 to high-quality GIFs using browser-based FFmpeg.
Social Post Generator
Convert text to beautiful shareable social media images.
3D Model Viewer
Inspect GLTF/GLB 3D models interactively in the browser.
The "Lightning" SVG Optimizer
Clean and minify heavy SVG files to reduce size up to 50%.
Local Image Converter
High-quality, in-browser conversion between PNG, JPG, and WebP.
Glassmorphism Generator
Create modern UI effects with sliders and copy the CSS code.
Color Palette Extractor
Extract dominant HEX and RGB colors from any image locally.
Browser Mockup Generator
Wrap your screenshots in beautiful 3D browser and device frames.
Bulk Image Editor
Resize and watermark multiple images instantly in your browser.
Color Blindness Simulator
See how your designs look to users with different types of color blindness.
Browser Teleprompter
Full-screen teleprompter with mirror mode and custom scroll speed.
SVG to 4K/8K PNG Exporter
Export vector SVGs to massive print-ready resolutions without quality loss.
ID Card A4 Print Master
Arrange exact 85.6×54mm ID cards on A4 with cut guides. Front/back support.
Passport Photo Sheet Maker
Auto-grid passport/NIC photos on A4 or 4x6 paper with scissor-cut guides.
PPSC/NTS Image Resizer
Resize + compress to exact px dimensions AND KB limit. Binary search precision.
Web Asset Downloader
URL ya source code daao — SVG, images, fonts, icons sab ek gallery mein download karo.
Low-Ink Eco Printer
Document ko Eco Mode mein convert karo. 30-70% printer ink bachao locally.
AI Brand-Kit Post Generator
Logo + colors + topic → 8 professional social posts ready to download!
Word to PDF Converter
Bulk convert .docx files to PDFs perfectly purely in the browser.
WhatsApp Doc Scanner & Cleaner
Remove shadows, whiten background and sharpen text — CamScanner in browser.
Booklet Print Imposer
Re-arrange PDF pages into booklet layout. Print, fold, staple — done!
PDF Size Compressor
4 compression levels. Renders pages via Canvas to shrink heavy PDFs locally.