Developer Tools
Tools for every dev workflow
Free, fast, and 100% browser-based. No sign-up, no tracking — your data never leaves your device.
JWT Decoder
Decode and inspect JWT tokens. See header, payload, and expiry status instantly.
Open toolJSON Formatter
Format, validate, and minify JSON. Spot syntax errors with line/column info.
Open toolRegex Tester
Build and test regular expressions with real-time match highlighting.
Open toolDockerfile Linter
Analyze your Dockerfile for best-practice issues, security risks, and size tips.
Open toolBase64
Encode and decode Base64 strings. Supports URL-safe variant.
Open toolTimestamp
Convert Unix timestamps to readable dates and vice versa. Shows relative time.
Open toolUUID Generator
Generate v4 (random) or v1 (timestamp) UUIDs in bulk with format options.
Open toolHTTP Status
Look up any HTTP status code — description, behaviour, and when to use it.
Open toolCron Parser
Parse cron expressions into plain English. See the next 5 scheduled runs.
Open toolcurl → fetch
Convert curl commands to JavaScript fetch() calls with headers, body, and auth.
Open toolSQL Formatter
Format SQL queries for PostgreSQL, MySQL, SQLite, T-SQL, and PL/SQL.
Open toolMarkdown
Live Markdown preview with GFM — tables, code blocks, task lists, HTML export.
Open toolHashtag Gen
Generate platform-optimised hashtags for Twitter/X, Instagram, LinkedIn, YouTube, and TikTok.
Open toolPassword Gen
Generate cryptographically secure passwords. Custom length, character sets, strength indicator.
Open toolColor Picker
Pick colors and convert HEX ↔ RGB ↔ HSL ↔ HSB. Generate shades, tints, check WCAG contrast.
Open toolQR Code
Generate QR codes for URLs, text, email, phone, and Wi-Fi. Download PNG or SVG.
Open toolText Case
Convert text between 14 cases: camelCase, snake_case, kebab-case, PascalCase, slug, and more.
Open toolCSV / JSON
Convert CSV to a JSON array and back. Auto-detects delimiters, handles quoted fields, and previews parsed rows.
Open toolText Diff
Compare two text or code blocks side-by-side. Highlights additions and removals with line-level precision.
Open toolYAML / JSON
Convert between YAML and JSON. Great for Docker Compose, Kubernetes, and GitHub Actions config.
Open toolURL Tools
Encode and decode URL components, parse any URL into its parts, and build URLs from query params.
Open toolNumber Base
Convert numbers between Binary (base-2), Octal (base-8), Decimal (base-10), and Hexadecimal (base-16). Supports 8, 16, 32, and 64-bit widths.
Open toolCurrency
Convert between 170+ currencies using live exchange rates updated hourly. USD, EUR, GBP, JPY, INR and more.
Open toolAll tools run entirely in your browser. Nothing is sent to any server.