Tools
For Developers.

Security

Password Generator

Generate strong passwords with full control over length, charset, and rules.

Crypto

Hash Generator

Compute MD5, SHA-1, SHA-256, and SHA-512 hashes instantly.

Security

SSH Key Generator

Generate RSA and ECDSA SSH key pairs directly in your browser.

Crypto

Password Salt Generator

Generate cryptographically secure salts in hex, base64, or base64url.

Security

Security Codes

Generate PINs, OTPs, recovery codes, and security Q&A pairs.

Security

Breach Checker

Check if your email or password has appeared in known data breaches.

Network

DNS Lookup

Resolve A, AAAA, MX, TXT, NS, and CNAME records instantly.

Security

SSL Certificate Checker

Browse certificate transparency logs and check expiry for any domain.

Data

Test Data Generator

Generate realistic names, emails, phones, and addresses for testing.

Formats

Data Formats

Generate JSON, YAML, XML, CSV, ini, and DB config templates.

Data

JSON Formatter

Pretty-print, minify, and validate JSON with live error highlighting.

Data

JSON ↔ YAML

Convert between JSON and YAML instantly with live preview.

Data

JSON ↔ CSV

Paste a JSON array to get CSV, or paste CSV to get JSON.

Math

Random Numbers

Uniform, Gaussian, Poisson, and Exponential distributions.

ML

ML Data Generator

Synthetic datasets for classification, regression, and NLP tasks.

Dev

UUID / ULID Generator

Generate UUID v4, v7, ULID, and NanoID. Batch generation supported.

Dev

Chmod Calculator

Visual Unix permissions calculator. Toggle checkboxes to get 755, 644, etc.

Reference

HTTP Status Codes

Search by code or name. Descriptions, usage examples, and categories.

Dev

Meta Tags Generator

Generate SEO, OG, and Twitter Card tags. Preview Google, Twitter, Facebook.

Dev

.gitignore Generator

Select Node, Python, Rust, Go, macOS, JetBrains and more. Download instantly.

Dev

SQL Formatter

Beautify messy SQL. MySQL, PostgreSQL, SQLite, T-SQL, BigQuery dialects.

Dev

API Request Builder

GET/POST/PUT/DELETE from your browser. Headers, body, auth, response viewer.

Dev

Code Snippets

Boilerplate for Python, JS, SQL, Docker, Git, VS Code, JetBrains.

Markdown

Markdown Table Generator

Build Markdown tables visually and copy the formatted output.

Design

Color Palette Generator

Analogous, complementary, triadic palettes with HEX, RGB, HSL.

CSS

CSS Generator

Animations, flexbox, grid, gradients, shadows, Bootstrap, Tailwind.

Dev

Cron Builder

Build cron expressions visually with human-readable descriptions.

Dev

JWT Decoder

Decode JWT tokens client-side. Header, payload, expiry status.

Dev

Regex Tester

Test regular expressions in real time with match highlighting.

Dev

Encoder / Decoder

Base64, URL, HTML entities, and Hex — encode and decode instantly.

Dev

Diff Viewer

Compare two texts side by side with line-by-line diff highlighting.

Text

Character Counter

Count characters, words, lines, sentences, and bytes in real time.

Utility

QR Code Generator

Turn any URL or text into a downloadable QR code instantly.

Generator

Name Generator

Generate names for people, usernames, brands, and projects.

Privacy

Browser Fingerprint

See what your browser reveals: User-Agent, WebGL, fonts, timezone, and more.

Biology

Bio Sequences

Generate DNA, RNA, amino acid sequences, and SMILES molecules.

Creative

Creative Generator

Character names, story ideas, book titles, blog names, and poems.

Creative

ASCII Art Generator

Convert text to ASCII art with 20+ figlet fonts. Copy or download.

Creative

Pixel Art Editor

Draw pixel art in your browser. 16×16 to 64×64 grid, export PNG.

Design

Color Blindness Simulator

Upload an image to see it through 8 types of color vision deficiency.

Design

Noise / Texture Generator

Perlin noise, Voronoi, hexagons, waves, and more. Export PNG or SVG.