Free Utilities &
Tools

JWT Decoder, Verifier & Security Inspector

Inspect, verify, and debug JSON Web Tokens offline in your browser. Validate HMAC/RSA/ECDSA signatures and audit security vulnerabilities.

Regex Visual Flowchart & Live AST Debugger

Turn complex regular expressions into interactive visual flowcharts. Test string matches, inspect AST tokens, and audit ReDoS risks offline.

Offline JSON Schema Builder

Visually design, validate, and export strictly typed JSON Schemas (Draft 7/2020-12) for your APIs.

Webhook Exponential Backoff Simulator

Simulate and calculate exponential backoff, jitter, and retry queues for webhook delivery systems.

Multi-Region Cron Timezone Visualizer

Simulate CRON expressions across distributed server timezones to prevent overlap and daylight savings bugs.

Visual CSP Header Builder & Auditor

Build, test, and generate robust Content Security Policy (CSP) headers visually to secure your web applications against injection attacks.

Core Web Vitals INP Debugger

Audit Interaction to Next Paint (INP) bottlenecks by simulating main-thread blocking and layout thrashing.

Apple Wallet & Google Pass Builder

Visually architect pass.json structures for Apple Wallet (.pkpass) and Google Wallet passes.

WebAssembly (Wasm) Linear Memory Page Allocator

Optimize low-level 64KB web memory page allocations to eliminate runtime heap overflow crashes.

PNG to SVG Vectorizer for Cricut & Laser Cutters

Vectorize raster images into clean SVG and DXF paths for Cricut, Silhouette, and laser cutters. Multi-layer color separation and cut optimization.

E-Commerce Drop Shadow Synth

Synthesize realistic, physically accurate directional or contact drop shadows for white-background e-commerce product photos.

Convolution Sharpen & Upscale

Recover blurry or out-of-focus product shots using high-pass convolution kernels and unsharp masking algorithms.

Biometric Passport Photo Verifier

Instantly verify passport & visa photo compliance using 468-point MediaPipe 3D facial landmark AI ? checks eye level, head size, yaw & pitch against ICAO 9303 standards. 100% private, runs in your browser.

Generative Outpaint & Canvas Uncrop

Expand square or landscape photos into 9:16 vertical reels and TikTok canvas formats without awkward black bars.

2.5D Parallax 3D Camera Zoom

Create mesmerizing 2.5D camera zoom and parallax depth displacement videos from a single still 2D photo.

Interactive 3D Studio Relighting

Virtually relight portraits and objects in post-production using interactive point lights, normal maps, and rim lighting.

Lens Flare, Bokeh & Film Grain

Add organic anamorphic lens flares, realistic optical bokeh, chromatic aberration, and 35mm analog film grain.

Old Photo Restoration

Restore faded, yellowed, and low-contrast scanned family photos with automated histogram equalization and tone curves.

Omni Image Animation & AI Studio

Transform photos into animated line-by-line hand-drawn pencil sketches and architectural line art drawings.

Bulk EXIF & 300 DPI Print Converter

Convert digital art and photos to 300 DPI print-ready formats with exact physical print dimension calculations.

Bulk EXIF Metadata Stripper

Remove hidden EXIF GPS coordinates, camera serial numbers, and timestamps from batches of photos in seconds.

Smart Saliency Auto-Center Crop

Automatically center-crop photos based on the subject's visual saliency and contrast mass.

Photo to Retro Pixel Art Converter

Convert any photo into crisp, authentic 8-bit or 16-bit retro pixel art.

JSON Formatter & Validator

Format, validate, and convert massive JSON payloads to CSV/YAML safely in your browser. Features BigInt protection and strict zero-telemetry architecture.

AI Object Eraser & Inpainter

Free AI-powered object eraser and smart inpainter. Paint over anything — backgrounds, people, text, watermarks — and watch it disappear. 100% browser-based, no uploads.

Kubernetes (K8s) YAML Deployment Scaffolder

Visually scaffold perfectly formatted, error-free Kubernetes YAML files for Deployments, Services, and Ingress resources.

Responsive Iframe Embed Code Generator

Generate clean, responsive, secure iframe embed codes with live preview. Auto-detect YouTube, Vimeo, Google Maps, Spotify, Figma & 15+ platforms. Includes sandbox security, lazy loading, aspect-ratio calculator & X-Frame-Options checker.

Vertical Video Frame Overlay Studio

Interactive 16:9 to 9:16 pan-and-scan reframe studio. Plan subject tracking keyframes, test split-stack podcast crops, preview 4:5 feed masks, and export NLE scripts or cropped video locally.

WCAG 2.1 / 2.2 & APCA Color Contrast Checker Studio

Calculate WCAG 2.1/2.2 and APCA contrast ratios, simulate 8 color blindness modes, auto-fix colors in OKLCH, and audit design system palettes.

Palette Contrast Heatmapper

Enter 5 brand hex colors. Get a full cross-reference grid of every text/background pairing with WCAG pass/fail scores.

Favicon Multi-Preview Workspace

Upload an icon to preview it across Chrome tabs, Safari dark mode, Windows taskbar, and phone home screens simultaneously.

CSS Fluid Typography Scale

Design responsive type scales with fluid clamp() values. Preview live across mobile, tablet, and desktop viewports.

CSS Flexbox & Grid Scaffold Mixer

Visually construct and export complex, responsive CSS Grid and Flexbox layouts without writing code manually.

Interactive CSS Shadow Blender

God-Tier CSS Shadow Engine: Multi-layer logarithmic diffusion, Neumorphism Soft UI calculations, and Tailwind/Token exports.

SVGO Vector Path Precision Optimizer

Advanced SVG optimization tool powered by SVGO to drastically reduce file sizes, clean vector paths, and improve web performance.

CSS Glassmorphism & Noise Layer Blender

Generate advanced CSS glassmorphism effects blended with SVG noise textures for modern, tactile UI design.

OKLCH & P3 CSS Color Space Generator

Create stunning, perceptually uniform color palettes using OKLCH and Display-P3 wide color gamuts.

SVG viewBox & Path Rescaler

Mathematically recalculate and scale raw SVG path coordinates and viewBox attributes without losing precision.

YouTube Thumbnail Squint Test & Accessibility Simulator

A professional validation toolkit to simulate YouTube UI contexts, test thumbnail contrast, and optimize for maximum Click-Through Rate.

CSS Scroll-Driven Animations Playground

Visually manipulate structural element tracking windows to interpolate frame nodes into copy-paste scroll-timeline rules.

WebXR Passthrough Latency & Frame Pacing Performance Auditor

Map rendering loops, sensor-to-photon latency, and frame pacing budgets to keep WebXR experiences above 90 FPS.

WebGL Fluid Simulation Canvas

Create mesmerizing, interactive liquid and smoke dynamics right in your browser.

AI Color Palette Generator (OKLCH & Perceptual)

Generate harmonious, accessible color palettes using local AI and OKLCH color science. Extract palettes from images and export design tokens.

Sound Wave Art Generator & Vector Waveform Studio

Turn songs and voice recordings into printable sound wave art and vector SVG paths. Create custom posters, tattoo stencils, and laser engravings.

App Store & Google Play Screenshot Auto-Resizer

Batch resize screenshots for every App Store & Google Play size spec — iPhone, iPad, macOS, Apple Watch, Apple TV, Android, Wear OS, ChromeOS. 22+ sizes, 4 resize modes, ZIP export. 100% browser-side.

PII Document Anonymization Brush

A forensic-grade image redaction suite running entirely locally. Strip hidden EXIF metadata and mathematically obliterate sensitive text using cryptographic pixel displacement.

Unstructured Bank Statement Sanitizer

Format messy raw bank data rows into a clean, downloadable spreadsheet.

Tailwind CSS Arbitrary Value & Variant Builder

Interactively construct and preview complex arbitrary variants in Tailwind CSS without leaving the browser.

OSINT Image EXIF Coordinate Tracer

Extract buried EXIF geographical metadata from media uploads to instantly trace coordinates on a secure canvas map.

Disposable Email & Burner Domain Risk Grader

Scan validation lists against string parameters to cross-reference and flag throwaway mailbox setups.

Zero-Knowledge Proof (ZKP) Validation Sandbox

Simulate cryptographic verification handshakes to authenticate user states without exposing private data.

NIST Post-Quantum Crypto (PQC) Key-Size & Packet Latency Simulator

Model packet fragmentation and network handshake slowdowns when migrating infrastructure to ML-KEM or ML-DSA.

DMARC, SPF & BIMI Brand Security Architect

Generate strict DMARC, SPF, and BIMI DNS records. Convert company logos into the strict SVG Tiny PS format required for BIMI email authentication.

LLM RAG Document Chunk Visualizer

Visualize token boundaries, text chunking strategies, and overlap thresholds for RAG vector databases.

AI-Safe Robots.txt Shield Generator

Instantly compile a clean security rule file specifically optimized to block emerging AI crawlers and scrapers from indexing content.

EU AI Act Compliance Matrix & Risk Audit Tool

Evaluate machine learning pipelines against global regulatory frameworks to instantly categorize system deployments into risk compliance tiers.

AI Agent Dialog Latency Visualizer

Map LLM TTFT (Time To First Token), tool execution, and voice synthesis delays in conversational AI agents.

Algorithmic Bias Compliance Auditor

Audit decision models for Disparate Impact and Equal Opportunity violations under EU AI Act guidelines.

Synthetic Data Distribution & Bias Mapper

Cross-reference generative data outputs against baseline curves to isolate synthetic drift and data decay.

3D Shipping Box Optimizer & Packing Calculator

Interactive 3D bin packing optimizer and dimensional weight calculator to minimize box size, reduce shipping fees, and plan pallet layouts.

Social Media Safe-Zone Studio Pro

Interactive safe-zone visualizer, 2026 UI overlay simulator, and text collision radar for TikTok, Reels, Shorts, and Snapchat.

Bulk GA4 UTM Campaign Architect

A spreadsheet-like grid to instantly build, validate, and track bulk UTM parameters for Google Analytics 4 (GA4) campaigns.

Free HTML Email Signature Generator

Create a professional HTML email signature in seconds. Live preview, multiple templates, social icons, logo, and CTA button. Zero server uploads — 100% private, client-side generation.

Eco-Delivery Packaging Volume Reducer

Calculate optimal corrugated box dimensions to minimize dimensional weight (DIM) and carbon shipping footprint.

EU CSRD Scope 3 Carbon Matrix

Calculate and visualize Scope 3 supply chain greenhouse gas (GHG) emissions for CSRD compliance.

Visual Timezone Overlap Slider

Find the perfect meeting time across multiple global timezones using an intuitive visual slider.

ATS Resume Scanner & Robot Parser Simulator

Simulate how ATS hiring robots read your resume. Extract plain text, score job description keyword match, and fix formatting errors offline.

Bulk Image Compressor & WebP Converter

Compress, convert, resize, and optimize bulk images in your browser. Convert JPG/PNG to WebP, reduce file sizes up to 90%, and export ZIPs.

LaTeX Equation Visual Renderer & MathML Studio

Render LaTeX math expressions into vector SVG, high-DPI PNG, and MathML. Live visual preview with AMS-LaTeX and chemistry support.

WebGPU Compute Pipeline Memory Visualizer

Allocate and debug compute shader buffer sizes to prevent silent WebGPU device crashes.

Local CSV to SQL / Apache Parquet Converter

Process massive 500MB+ CSV files entirely in your browser using WebAssembly. Convert local CSVs into highly compressed Apache Parquet files or SQL dumps.