Utility Tools
Perform common text, data, media, image, security, and browser tasks directly with focused tools. Client-Side utilities explain local processing, while service-backed tools clearly disclose their configured provider requirement.
Image & Graphics
Crop, inspect, sanitize, and generate image assets locally.
Client-Side Image Resizer & Converter
Resize, compress, and convert PNG, JPEG, and WEBP images 100% locally in your browser
HEIC to PNG Converter
Convert iPhone HEIC/HEIF photos into a portable PNG in your browser
Local Image Cropper
Crop a still PNG, JPEG, or WebP image and export it with Canvas
SVG to High-Res PNG Rasterizer
Convert pasted SVG markup to a high-DPI transparent PNG
Image Palette Extractor
Extract a compact dominant color palette from a local image
Favicon Size Generator
Export 16, 32, 48, 180, and 192px PNG favicon sizes from one local image
SVG Sanitizer & Optimizer
Remove unsafe SVG content and excess whitespace while preserving viewBox
Video & Audio
Inspect, transcribe, trim, convert, and responsibly process local media.
MP4 to MP3 Converter
Extract an audio track from a local MP4 and export a verified MP3
Audio Trimmer
Select a time range from browser-decodable audio and export a WAV clip
Video & Audio Transcriber
Transcribe an authorized local audio or video file with a configured server-side speech engine
Video Metadata Inspector
Read duration, resolution, aspect ratio, type, and size from a local video
Audio Metadata Inspector
Inspect local audio type, size, duration, and common MP3 ID3 tags
YouTube Link Validator
Validate a supported YouTube URL and open official creator export options
YouTube Creator Download Guide
Check a YouTube link and open official download options for your own uploads
Instagram Reel Export Guide
Check a Reel link and open Instagram’s official account export for your own content
Files, Data & Browser
Inspect files, browser capabilities, MIME signatures, and timestamps.
Timestamp Converter
Convert Unix seconds, Unix milliseconds, ISO dates, and local time
Viewport & Browser Inspector
Inspect viewport, DPR, orientation, color scheme, motion, and pointer capability
File MIME Sniffer
Compare a file’s declared MIME type with its local magic-byte signature
File Metadata Inspector
Inspect local name, type, size, modified time, and image dimensions
Text & Writing
Transform, compare, inspect, and format text without a remote utility service.
Text Inspector & Case Converter
Real-time word, character, sentence counter with programming case transforms
Text Diff Checker
Compare two documents line by line with clear added and removed changes
Slug & Identifier Generator
Turn titles into URL slugs, camelCase, PascalCase, snake_case, and kebab-case
Markdown Table Builder
Build aligned Markdown tables from comma-separated columns and rows
Unicode Inspector
Inspect graphemes, code points, UTF-16 units, and UTF-8 byte size
Structured AI Prompt Template Builder
Turn rough ideas into a clear, reusable prompt template
Developer Tools
Work with structured data, URLs, regular expressions, and CSS.
Vector QR Code Generator
Generate a scannable local QR code for short URLs or text
JSON Formatter & Syntax Validator
Validate, beautify, minify, and copy JSON payloads with useful syntax feedback
HTML Entity Encoder & Decoder
Safely encode or decode HTML entities as plain text
CSV ↔ JSON Converter
Convert quoted CSV rows to JSON objects and JSON arrays back to CSV
JSON to TypeScript Interfaces
Infer nested TypeScript interfaces from example JSON data
Regex Tester & Replacement Preview
Test a regular expression, inspect matches, and preview replacements
URL Query Builder
Parse, edit, preserve duplicate parameters, and rebuild URLs safely
CSS Specificity Calculator
Calculate ID, class, and element specificity for a selector
CSS Gradient Generator
Build a two-stop linear gradient and copy production-ready CSS
Security & Validation
Inspect and validate tokens, identifiers, hashes, and local files.
JWT Decoder
Decode JWT headers and payloads while clearly separating decoding from verification
UUID Generator & Validator
Generate secure UUIDs locally or validate an existing versioned UUID
Secure Password Generator
Generate passwords with selected character classes using browser cryptography
Text Hash Generator
Calculate SHA-256, SHA-384, or SHA-512 for text with Web Crypto
File Checksum Calculator
Compare local file integrity with SHA-256, SHA-384, or SHA-512