Developer & Linux Tools
Fast, free, and 100% private developer utilities, Linux sysadmin helpers, and data formatters. Everything executes locally in your browser with zero server latency or data collection.
All Developer Utilities
Binary, Base58 & Hex Multi-Encoder
Convert strings across Base64, Base58, Base32, Hexadecimal, Binary bits, and URL encoding simultaneously.
SVG to PNG & WebP Image Studio
Convert SVG vector graphics into high-resolution PNG, WebP, and JPG files with scale multipliers up to 16x (8K).
HTML & CSS Formatter & Minifier
Format, indent, and beautify messy HTML5 and CSS3 code, or minify files into compact production bundles.
Favicon & App Manifest Studio
Generate 5-size PNG favicon packages, Apple touch icons, and site.webmanifest with 1-click ZIP download.
JWT Token Generator & Verifier
Generate cryptographically signed JSON Web Tokens (HS256/384/512) and verify signatures in real time.
Aspect Ratio & Resolution Studio
Calculate 16:9, 4:3, 21:9, 9:16 dimensions, Retina @2x/@3x scaling matrix, and modern CSS aspect-ratio snippets.
In-Browser PDF Merge & Split Studio
Merge multiple PDFs or extract specific page ranges in seconds. 100% confidential in-browser memory with zero server uploads.
Universal Case Converter & Slug
Transform strings across 14 casings: camelCase, snake_case, kebab-case, PascalCase, CONSTANT_CASE, and clean SEO URL slugs.
Lorem Ipsum & Dummy Content Studio
Generate customizable placeholder paragraphs, sentences, words, bullet lists, and HTML markup with 1-click copy.
Image Color Palette & Eyedropper
Extract 6-color aesthetic palettes from uploaded images or pick on-screen colors with the native Eyedropper API. Export CSS/Tailwind.
QR Code Studio & Generator
Generate static QR codes for URLs, WiFi credentials, vCards, WhatsApp, and text. Custom colors and high-res PNG/SVG download.
Strong Password & Passphrase Generator
Cryptographically secure password generator with Diceware memorable passphrases, numeric PINs, and live entropy scores.
Universal Unit & Data Converter
Fast bi-directional converter for Digital Storage (Bytes/GB/TB), Length, Weight, Temperature, Speed, and Area with instant matrix.
In-Browser Image Compressor & WebP
Compress and convert PNG, JPG, and WebP images with adjustable quality and dimensions. 100% private in-browser memory.
Linux chmod Calculator
Convert between octal numeric (755, 644, 700) and symbolic (rwxr-xr-x) file permissions with SUID/SGID support.
IPv4 Subnet & CIDR Calculator
Calculate subnet mask, network address, broadcast address, usable host IP range, and wildcard bitmasks.
Nginx Reverse Proxy Generator
Build production Nginx reverse proxy server blocks with SSL/TLS Let's Encrypt, WebSockets, Gzip, and HTTP/2.
Linux systemd Service Generator
Generate systemd .service unit files for Node.js, Python, Go, and Docker applications with auto-restart policies.
Dockerfile Generator & Builder
Generate hardened multi-stage production Dockerfiles and .dockerignore files for Node.js, Python, Go, and Nginx.
htpasswd & Basic Auth Generator
Generate secure Apache and Nginx .htpasswd basic authentication credentials using APR1-MD5 and SHA-1 hashes.
Cron Expression Parser & Builder
Translate crontab schedules to human English, calculate next 5 run dates, and construct cron jobs visually.
Git Scenario Solver & Undo
Step-by-step commands to resolve common Git emergencies, recover lost commits with reflog, and undo commits safely.
.gitignore Generator & Combiner
Generate and merge production .gitignore templates for Node.js, Python, macOS, VSCode, Rust, Docker, and Go.
YAML ⇄ JSON Converter
Bidirectional real-time converter between YAML and JSON for Kubernetes manifests, Docker Compose, and API payloads.
SSH Key Inspector & Fingerprint
Inspect OpenSSH public keys (Ed25519, RSA, ECDSA), calculate SHA-256 fingerprints, and generate client-side keypairs.
JWT Debugger & Inspector
Decode JSON Web Token headers, payload claims, and signatures in real-time with live expiration countdowns.
Hash & Checksum Generator
Compute SHA-256, SHA-512, SHA-384, SHA-1, MD5, and HMAC digests for text and local files in browser memory.
UUID / GUID Generator & Validator
Generate bulk cryptographically secure Version 4 UUIDs or inspect and validate existing UUID strings.
Base64 & URL Encoder/Decoder
Encode and decode text, query parameters, URLs, and image files to Base64 & Data URIs.
LLM Token Counter & Cost
Estimate tokens and calculate API costs across GPT-4o, Claude 3.5, Gemini 1.5, DeepSeek, and Llama 3.
Code Snippet Card Studio
Create beautiful code screenshot cards with macOS window frames, gradient backdrops, and 1-click clipboard PNG export.
SVG to JSX & Optimizer
Clean, minify, and convert raw SVG vector graphics into React JSX components, Vue 3, Svelte, and CSS Data-URIs.
cURL to Code Converter
Convert curl commands to JavaScript Fetch, Axios, Python Requests, Go, PHP Guzzle, and Rust Reqwest.
JSON to Types & Schemas
Transform JSON payloads into TypeScript interfaces/types, Zod validation schemas, Pydantic models, and Go structs.
URL Parser & Query Builder
Deconstruct URLs, inspect protocol and paths, edit query parameters in an interactive table, and rebuild URLs.
SQL Formatter & Beautifier
Format, indent, and beautify messy SQL queries with uppercase keyword styling or minify queries with one click.
JSON Formatter & Prettifier
Format, validate, prettify, and minify complex JSON payloads with line number error diagnostics.
Regex Tester & Builder
Test regular expressions in real time with live highlight match visualization and capture groups.
Text Diff & File Comparison
Compare two text files or code blocks line-by-line in real time. Highlight additions, deletions, and edits.
Live Markdown Editor & HTML
Write Markdown with split-screen live preview. Export clean HTML or Markdown with one click.
OpenGraph & Meta Tag Studio
Generate SEO meta tags with live interactive card simulation for Google, Twitter/X, Discord, and LinkedIn.
CSS Fluid Typography & clamp()
Calculate smooth responsive CSS clamp() formulas for fluid font sizes, padding, and gaps with live simulation.
Unix Timestamp & Epoch Converter
Convert Unix epoch seconds and milliseconds to human dates, UTC, ISO 8601, and local time with live ticker.
Color Converter & WCAG Contrast
Convert HEX, RGB, HSL, and CMYK color spaces and validate WCAG 2.1 AA/AAA text accessibility compliance.
Regex Data Extractor
Extract emails, URLs, phone numbers, IP addresses, or custom patterns from raw text instantly.
Word Counter & Readability
Count words, characters, reading time, and check Flesch-Kincaid readability and keyword density.
Text Cleaner & Formatter
Remove extra line breaks, clean duplicate spaces, fix casing, and strip HTML tags.
CSV & Table Transformer
Convert tables between CSV, JSON, Markdown, and HTML tables with one click.
Email Generator & Templates
Generate professional business, refund request, and shopping complaint emails.