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Features 5 min readUpdated February 10, 2026

Developer Tools Overview

Guide to the developer-focused tools including JWT decoder, API tester, and code formatter.

Kamili Toolbox includes a dedicated suite of developer tools to speed up common tasks. ## Code Tools ### Code Formatter Format JavaScript, TypeScript, Python, CSS, HTML, JSON, SQL, and more. Based on Prettier for consistent output. ### Code Minifier Minify JS, CSS, and HTML files. Shows file size reduction percentage. ### HTML Preview Write HTML, CSS, and JS in a code editor and see the live result in a sandboxed iframe. ## Authentication & Encoding ### JWT Decoder Paste a JSON Web Token to see the header, payload, and expiry date decoded. Useful for debugging auth issues. ### Base64 File Encoder Encode any file to Base64 (for embedding in HTML/CSS/JSON) or decode Base64 strings back to files. ## Web & API ### URL Parser Paste any URL and see it broken down: protocol, hostname, port, pathname, query parameters, and fragment. ### HTTP Status Codes Searchable reference table for all standard HTTP status codes with descriptions and common use cases. ### API Tester Send HTTP requests directly from the browser — GET, POST, PUT, DELETE. Set headers, body, and view responses. No CORS restrictions (uses a proxy for cross-origin requests). ## Design Tools ### Color Picker Pick colors from a palette or enter HEX/RGB/HSL values. Get all equivalent values instantly. ### Gradient Generator Build linear, radial, or conic CSS gradients visually and copy the CSS output. ### Box Shadow Generator Design box shadows with visual sliders for offset, blur, spread, and color. ### Meta Tag Generator Fill in a form to generate complete HTML meta tags and Open Graph tags for SEO. ## AI Tools ### AI Code Explainer Paste any code (any language) and get a plain-English explanation of what it does, line by line.
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Developer Tools Overview — Kamili Toolbox