https://www.webpenson.com/en/ Recent content in Home on Online Tool Box Hugo en-US Thu, 02 Apr 2026 12:00:00 +0800 https://www.webpenson.com/en/contact/ Thu, 02 Apr 2026 12:00:00 +0800 https://www.webpenson.com/en/contact/ <p><strong>Last Updated: April 2, 2026</strong></p> <p>If you have any questions, suggestions, or find any errors on the website, please feel free to contact us:</p> <ul> <li><strong>Email:</strong> <a href="mailto:yourname@example.com">pxn626@outlook.com</a></li> <li><strong>Working Hours:</strong> Mon - Fri, 9:00 AM - 6:00 PM</li> </ul> <p>We usually reply within 24 hours.</p> https://www.webpenson.com/en/terms/ Thu, 02 Apr 2026 12:00:00 +0800 https://www.webpenson.com/en/terms/ <p><strong>Last Updated: April 2, 2026</strong></p> <h4 id="1-acceptance-of-terms">1. Acceptance of Terms</h4> <p>By accessing and using [Online Tool Box], you accept and agree to be bound by the terms and provision of this agreement.</p> <h4 id="2-disclaimer">2. Disclaimer</h4> <p>The tools and calculation results provided by this website are for reference only. We do not guarantee the absolute accuracy, completeness, or applicability of the tool output.</p> <h4 id="3-user-conduct">3. User Conduct</h4> <p>You agree not to use this website for any illegal activities. You promise not to interfere with or disrupt the website&rsquo;s services or servers.</p> https://www.webpenson.com/en/tools/random-sampler/ Mon, 05 Feb 2024 00:00:00 +0000 https://www.webpenson.com/en/tools/random-sampler/ Free online random sampler. Randomly select specified number of items from a list. Supports sampling with and without replacement. Perfect for lotteries and data sampling. https://www.webpenson.com/en/tools/duplicate-remover/ Thu, 01 Feb 2024 00:00:00 +0000 https://www.webpenson.com/en/tools/duplicate-remover/ Free online list duplicate remover. Supports multiple separators (newline, comma, tab), optional case sensitivity. Quickly remove duplicates and view statistics. https://www.webpenson.com/en/tools/binary-visualizer/ Tue, 30 Jan 2024 00:00:00 +0000 https://www.webpenson.com/en/tools/binary-visualizer/ Free online binary visualization tool. Supports decimal, hex, binary conversion, bitwise operations (AND, OR, XOR, shift), interactive bit manipulation. Perfect for programmers and CS students. https://www.webpenson.com/en/tools/json-to-typescript/ Thu, 25 Jan 2024 00:00:00 +0000 https://www.webpenson.com/en/tools/json-to-typescript/ Free online JSON to TypeScript type definition generator. Automatically infer TypeScript interface types from JSON data with support for root type naming, readonly and optional properties. https://www.webpenson.com/en/tools/hash-generator/ Sat, 20 Jan 2024 00:00:00 +0000 https://www.webpenson.com/en/tools/hash-generator/ Free online hash generator tool supporting MD5, SHA-1, SHA-256, SHA-512 algorithms. Calculate hash from text input or drag-and-drop files. Client-side processing. https://www.webpenson.com/en/tools/unit-converter/ Mon, 15 Jan 2024 00:00:00 +0000 https://www.webpenson.com/en/tools/unit-converter/ Free online unit converter tool. Convert between length, weight, temperature, area, volume, and data storage units. Easy to use with accurate results. https://www.webpenson.com/en/tools/diff-checker/ Wed, 10 Jan 2024 00:00:00 +0000 https://www.webpenson.com/en/tools/diff-checker/ Free online text comparison tool. Compare two texts and highlight differences with LCS algorithm. Perfect for code review and text comparison. https://www.webpenson.com/en/about/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.webpenson.com/en/about/ Learn about our mission, tech stack, and why we are dedicated to providing the best localized online tools. https://www.webpenson.com/en/tools/json-formatter/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.webpenson.com/en/tools/json-formatter/ Free online tool to format, compress, validate, and detect errors in JSON data. https://www.webpenson.com/en/tools/base64/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.webpenson.com/en/tools/base64/ Free online Base64 encoding and decoding tool. Convert text, images, and files to Base64 strings or decode Base64 back to original data. Fast, secure, and client-side processing. https://www.webpenson.com/en/tools/color-converter/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.webpenson.com/en/tools/color-converter/ Free online color converter. Real-time bidirectional conversion between Hex, RGB, and HSL color formats with instant visual preview. https://www.webpenson.com/en/tools/cron-parser/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.webpenson.com/en/tools/cron-parser/ Free online Cron expression parser and generator. Supports validation, next execution time calculation, and quick preset templates. Client-side processing, safe and secure. https://www.webpenson.com/en/tools/jwt/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.webpenson.com/en/tools/jwt/ Free online JWT decoder tool. Parse JSON Web Tokens instantly to view Header, Payload, and Signature. Supports debugging for HS256/RS256 algorithms. Client-side processing. https://www.webpenson.com/en/tools/lorem-ipsum/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.webpenson.com/en/tools/lorem-ipsum/ Free online Lorem Ipsum generation tool. Supports generating specified number of paragraphs, sentences, or words. Ideal for web design, layout testing, and prototyping to quickly fill placeholder text. https://www.webpenson.com/en/tools/regex-tester/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.webpenson.com/en/tools/regex-tester/ Free online regex tester with real-time match highlighting, syntax explanation, and common pattern presets. Client-side processing, safe and secure. https://www.webpenson.com/en/tools/specialized-lorem/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.webpenson.com/en/tools/specialized-lorem/ Free online specialized Lorem Ipsum generation tool. Supports various themes like food, corporate, tech, etc. Ideal for web design and prototyping to quickly generate fun and realistic placeholder text. https://www.webpenson.com/en/tools/sql-formatter/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.webpenson.com/en/tools/sql-formatter/ Free online SQL Formatter. Supports automatic indentation, keyword highlighting, and case conversion. No download required, runs purely in the browser, ready to use immediately. https://www.webpenson.com/en/tools/text-case-converter/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.webpenson.com/en/tools/text-case-converter/ Free online text case conversion tool. Supports converting text to UPPERCASE, lowercase, Title Case, camelCase, and snake_case. Essential tool for programmers and copywriters. https://www.webpenson.com/en/tools/ultimate-dummy-text/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.webpenson.com/en/tools/ultimate-dummy-text/ The ultimate placeholder text generation tool. Supports Classic English Lorem Ipsum, Chinese (Classical/Modern Nonsense), E-commerce copy, Emoji, and Long Word testing. Meets diverse needs for web design, layout testing, and prototyping. https://www.webpenson.com/en/tools/unix-timestamp/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.webpenson.com/en/tools/unix-timestamp/ Free online Unix timestamp conversion tool. Convert current time to Unix timestamp (seconds or milliseconds) or convert timestamp to readable date format. Supports local and UTC time display. https://www.webpenson.com/en/tools/url/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.webpenson.com/en/tools/url/ Free online URL encoding and decoding tool. Convert Chinese characters and special symbols into valid URL formats. Essential for web development and API testing. https://www.webpenson.com/en/tools/password-strength/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.webpenson.com/en/tools/password-strength/ Real-time password strength checker and secure password generator. Supports entropy calculation, custom length, and character rules. https://www.webpenson.com/en/privacy/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.webpenson.com/en/privacy/ We value your privacy. This page explains how we collect, use, and protect your personal information.