Developer Tools, Instantly.

Pretty‑print, minify, validate JSON. Load from URL, paste, or file upload. JSONPath query support.

Convert between YAML and JSON with validation. Supports Kubernetes & CI/CD configs.

Convert Unix timestamps to human‑readable dates for multiple timezones and back.

Convert between CSV and JSON for APIs and data pipelines.

Convert .env files to JSON / YAML and back.

Generate TypeScript interfaces and types from any JSON payload.

Convert Word .docx files to PDF entirely in the browser. No upload to servers.

Merge multiple PDFs into one or split a PDF into individual pages. 100% client-side.

Generate JSON Schema from sample JSON data. Supports Draft-07 and Draft 2020-12.

Decode JWT tokens in the browser. Inspect header, payload, expiration, and common claims.

Create and sign custom JWT tokens for testing auth flows. Supports HS256, HS384, HS512 algorithms.

Generate strong, random passwords with configurable length, symbols, and entropy display.

Parse cron strings and get a human‑readable explanation. See the next N scheduled runs.

Visual cron expression builder with natural language output. Create schedules without memorizing syntax.

Lightweight REST API client that runs entirely in the browser. Supports all HTTP methods.

Quick reference for HTTP status codes (1xx-5xx) with descriptions and debugging solutions.

Live regex match highlighting, capture groups, and substitution with pre‑built examples.

Side‑by‑side or inline diff with syntax‑like highlighting for any text or code.

Convert text to camelCase, PascalCase, snake_case, kebab-case, UPPER, lower, and more.

Live Markdown editor with instant HTML preview. Supports GFM, tables, and code blocks.

Format, minify, and validate SQL queries. Supports MySQL, PostgreSQL, SQLite, and standard SQL.

Format, minify, and validate GraphQL queries, mutations, subscriptions, and schemas. Perfect for Apollo & Relay.

Turn any title or sentence into a clean, URL-friendly slug.

Generate placeholder text in paragraphs, sentences, or words.

Encode and decode text and files (images) in the browser with preview.

Encode and decode URL components and query strings.

Encode and decode HTML entities. Escape special characters for safe HTML output.

Convert numbers between binary, octal, decimal, hex, and arbitrary bases up to 36.

Unix file permission calculator. Toggle rwx bits for owner, group, other. See numeric and symbolic notation.

Generate SHA‑256, SHA‑512, MD5, and other hashes client‑side for text or files.

Generate v4 UUIDs instantly in the browser.

Turn any text or URL into a downloadable QR code.

Pick colors and convert between HEX, RGB, HSL, and CSS named colors with live preview.

Convert images to Base64 data URIs and back. Preview and download results.

Compress PNG, JPEG, WebP images in the browser. Free alternative to TinyPNG.

Generate beautiful code screenshots with syntax highlighting. Free Carbon.sh / Ray.so alternative.

Optimize and minify SVG files. Remove metadata, editor data, and reduce file size.

Generate favicons for all platforms from any image. Apple Touch Icon, Android Chrome, PWA.

Visual CSS gradient builder for linear, radial, and conic gradients. Presets, color stops, and instant CSS output.