About ToolLaunchpad

What it is

Most of us regularly need to pretty-print a JSON response, check a word count, turn a headline into a URL slug, test a regular expression, hash a file or create a strong password. These are small jobs, but the sites that do them are often slow, covered in ads or ask you to upload your data. ToolLaunchpad aims to be the opposite: one page per task, a tool that works immediately, and a clear explanation of what it does.

Principles

• Local processing. Every tool runs in your browser. Your input is never uploaded.
• No sign-up and no cookies. No accounts and no ads. Visits are counted with cookieless statistics on our own server that never see your input. See the privacy policy.
• Standards first. Tools use the browser's own standard implementations wherever possible, such as JSON.parse, TextEncoder, encodeURIComponent, crypto.randomUUID, crypto.subtle, DOMParser and the JavaScript RegExp engine, so results match what your code will do.
• Useful explanations. Each page covers how to use the tool, worked examples and the errors people actually hit.
• Lightweight and accessible. Plain HTML, CSS and a few kilobytes of JavaScript per page. Works with a keyboard, in light and dark mode, and on small screens.

The tools

• Word Counter – Count words, characters, sentences and paragraphs, plus reading time.
• Case Converter – Convert text to UPPER, lower, Title, Sentence, camelCase, snake_case and kebab-case.
• Remove Line Breaks – Remove line breaks, empty lines and extra spaces from pasted text.
• Remove Duplicate Lines – Delete repeated lines from a list, keep the first one and optionally sort.
• Reverse Text – Reverse characters, word order, each word or the order of lines.
• Strip HTML Tags – Remove HTML tags and get clean, readable plain text with paragraphs kept.
• Base64 Encode / Decode – Encode text to Base64 or decode it back, UTF-8 safe, with URL-safe option.
• URL Encode / Decode – Percent-encode text for URLs and query strings, or decode it back.
• SHA-256 Hash Generator – Hash text or files with SHA-256, SHA-1, SHA-384 or SHA-512, in hex or Base64.
• HTML Entity Encoder / Decoder – Escape special characters as HTML entities or decode entities back to text.
• UUID Generator – Generate random version 4 UUIDs, one or up to 1,000 at a time.
• Slug Generator – Turn titles into clean URL slugs, with accents and umlauts transliterated.
• Password Generator – Create strong random passwords with a secure random source and see their entropy.
• Random String Generator – Generate secure random tokens in hex, base62, URL-safe or a custom alphabet.
• JSON Formatter – Format, minify and validate JSON with exact line and column errors.
• Color Converter – Convert colors between HEX, RGB and HSL, with alpha, a picker and live preview.
• Regex Tester – Test JavaScript regular expressions live with highlighted matches and groups.

Cost

All tools are free to use, for personal and commercial work, without limits.