LocalUsta TOOLS

Video Editor

Professional video editing and conversion directly in your browser with FFmpeg.wasm.

Image Editor

Compress, resize, and remove metadata from images 100% locally in your browser.

WebP/AVIF Image Optimizer

Compress and optimize images to WebP and AVIF format completely offline in your browser with real-time visual comparisons.

Secure PDF

Professional browser-based Secure PDF tool. Sign documents, merge files, sanitize metadata, and compress PDF with 100% client-side security. No uploads, total privacy.

Smart Screen

Safely record your screen, webcam, and microphone entirely inside your browser without server uploads. 100% Private.

Placeholder Image Generator

Create custom placeholder images for your design mockups and web development instantly without external dependencies.

JSON Prettier

SVG Optimizer

Diff Checker

Secure Diff Checker

SQL Formatter

Format and minify complex SQL queries instantly in your browser.

SQLite Explorer

RegEx Tester & Master

Build, test, and master regular expressions with a comprehensive cheat sheet and real-time match highlighting.

data-generator

Local Clipboard / Scratchpad

A secure scratchpad that runs entirely in your browser. Stays saved even if you close your device, but never uploaded to the internet.

Unix Timestamp

Convert Unix timestamps to ISO 8601, UTC, local time, and more. Supports seconds and milliseconds timestamps with real-time updates.

Cron Expression Generator

Generate secure cron expressions visually using intuitive dropdown selectors or parse and translate cron strings into plain human-readable language instantly.

Markdown Editor & Previewer

Write Markdown with side-by-side GitHub-styled preview, or convert HTML to Markdown instantly.

CSS Shadow & Gradient Studio

Create gorgeous multi-layered CSS box shadows, text shadows, linear/radial gradients, and glassmorphism presets completely offline.

CSV <-> JSON Converter

Convert between CSV and JSON formats locally in your browser with separator selection and parsing options.

Base64 Converter

Encode and decode strings, files, or binary data locally in your browser with high performance and automatic MIME type detection.

Unit Converter

A high-fidelity unit conversion tool for developers. Convert Data, Time, and CSS units (PX to REM/EM) instantly.

Case Converter

Transform your text into camelCase, snake_case, kebab-case, PascalCase, CONSTANT_CASE, and more. Support for bulk conversion and auto-detection.

URL Encoder / Decoder

Professional developer tool to encode, decode, and parse URLs. Edit query parameters and path segments dynamically, generate code snippets, and scan for security issues.

cURL to Fetch/Axios

Convert client-side terminal cURL commands into clean JavaScript Fetch or Axios requests instantly.

JWT Debugger

Secure QR

Create beautiful, customizable QR codes with logos and colors, or scan existing ones. 100% private and runs locally in your browser.

Hash Generator & Checker

Generate and verify MD5, SHA, BLAKE3, CRC32 and Argon2 hashes for text and files.

Secure Password Generator

Generate highly secure passwords and measure their strength offline.

Bcrypt & Argon2 Tester

Generate, parse, verify, and benchmark Bcrypt and Argon2 password hashes safely in your browser. 100% private.

Certificate Inspector

Securely decode and analyze your SSL/TLS certificates (.crt, .pem) entirely offline in your browser.

DNS Analyzer

Analyze your domain's DNS records (A, MX, TXT, CNAME) in real-time across Google & Cloudflare. Perform free security health checks for SPF, DMARC, and DNSSEC.

IP & WHOIS Analyzer

Discover, analyze, and map IPv4 and IPv6 addresses. Instantly audit network owner, ASN, CIDR block, Internet Service Provider (ISP), hosting vs residential status, and raw RDAP records in real-time.

Local API Sandbox

Test and debug your local development APIs (localhost) completely offline in your browser. Send custom HTTP requests with headers, parameters, and payloads instantly.